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Popliteal Artery Occlusion (Acute on Chronic) | Mechanical Thrombectomy, Balloon Angioplasty | 82 | Female
Popliteal Artery Occlusion (Acute on Chronic) | Mechanical Thrombectomy, Balloon Angioplasty | 82 | Female
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Why Open Endarterectomy Is The Best Treatment For Common Femoral Artery Lesions: It Is Still The Gold Standard In Most Cases Despite What You May Read And Hear
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Surgical vs. Endovascular Management Of Cephalic Arch Syndrome
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brachialC-GuardcarotidCASCovered stentcumulativedemographicdeviceembolicembolic protection deviceenrolledexternalInspire MDminormyocardialneurologicneurologicalocclusionongoingpatientsproximalratestenosisstenttiastranscervicaltransfemoral
Transcript

>> [LAUGH]

82 year old female with a cold right leg and she had a history of claudication. That's good information right? And the usual. A feb is I guess important to note because the question of course always is embolic versus thrombotic, right? The angiogram from the left side shows this meniscus here. So obviously a lot of chronic calcific disease reconstitutes the popliteal,

which is pretty diseased, but is open. So what do you do here? So my approach with these, if it's a native occlusion and it's acute or chronic, I'll almost always try to complete it in one sitting and avoid thrombolysis So in these cases I'll always go Spider, oversized

a little bit, five French Spireflex/g, AngioJet, buzz it. If it opens up, fix the chronic lesion. And that's what this is I think. So here we have the wire. A-Jet. That's part of the contrast I guess at some point. Unfortunately the new AngioJet catheters are not injectable.

So that went backwards. The original Monorail AngioJet catheters were actually injectable which was great. But apparently a cardiologist injected air into a coronary and the FDA shut that down. So the new ones are not injectable which is annoying.

So anyway, we buzzed that up and got rid of most of the acute clot. There're some chronic lesions here that we know about. This is a long balloon we put up and apparently there's a waste here that we were unable to open up. So we use a cutting balloon there. I guess there's many other options. Given her calcific disease, Diamondback would be probably a nice option

as well. And then we ballooned the whole segment. And actually here you do see where the Spider was. And I think we got a nice result. Might be missing the proximal segment here. But anyway, that looked reasonable. Got it back to base line.

Didn't address the tibial lesions. I don't know. Would you go after the tibial lesions in this situation? >> I've got a question for you Dan. Many years ago, I know you guys used so much AngioJet. They came up with some sort of, it's called the GuardDog or something. You remember that? They-

>> Yeah, a balloon. >> Does that still exist and do you ever use it? >> No and no. >> Okay. >> [LAUGH] >> It was basically a balloon on a wire right? >> Right. >> Yeah. Not a bad idea really. I'd consider using it if it was available.

But no, it's pretty much filters are the only option. >> You ever use the Abbott filter NAV6? >> NAV6 yeah. Almost never because it's a pain to deploy. >> But it doesn't move.

>> It probably moves a little less. But I can't put it through my 035 catheter. So you've got to go through all sorts of maneuvers to get it down there. If you're doing like a Diamondback case and you're really concerned about distal embolization then it might be worth

the trouble but in most cases I don't bother. >> And it's more expensive. >> Might be, yeah. >> [INAUDIBLE] >> Right, that's a great option. Right.

So there are several atherectomy devices that do thrombectomy as well, right? Jetstream is one, the Laser, Phenox, they all have a component of aspiration. And my favorite of those for this kind of situation is the Jetstream

cause I think it has better aspiration than the other ones but it's really a far cry from the thrombectomy you get with an AngioJet system or a different thrombectomy system. So really only applicable if the clot or acute component is small, in my opinion. Otherwise you're gonna have to break out a thrombectomy catheter

as well. But the Jetstream is nice because you can use it over a Spider. And it does thrombectomize so it's a larger catheter. I think I might have a case of that coming up. I'm not sure.

- Thank you very much Mr. Chairman. Thank you Frank, for this kind invitation again to this symposium. This is my disclosure. With the drug coated balloons it is important to minimize the drug loss during the balloon transit during the inflation of the balloon.

Because Paclitaxel has a high degree of cytotoxicity that may induce necrosis and increase inflammation in the distal tissue, and we know that even with the best technique, we can loose 70 - 80% of the drop to the distal circulation,

the inference by different factors between them and the calcification of degree of these blood cells. There are adverse events secondary to drug coated balloons that have been reported recently. In animal molders it has shown that Downstream Vascular Changes are more frequent with

Drug Coated Balloons than with Drug-Eluting Stents. In animal molders it has been also shown that there is no evidence of significant downstream emboli or systemic toxicity with DCB's than with patients with controls. This was a study presented yesterday by (mumbles)

with a very nice and elegant study with a good methodology that shows in animals that there are different concentrations of the drug in distal tissue depending on the balloon that you are using. In this case, the range in balloon (mumbles)

those ones have the lowest concentration in the distal tissue. In clinical experience in this meta-analysis amputations and wound healing rate are lower with this series with controls. But there is controversy because

Complete Index Ulcer Healing is higher in this series than with control patients. But there are lower wound healing index in patients compared with drug-eluting stents. In the debate, (mumbles) and also in the dialux which are clinical trials in diuretic patients with CLI,

there we no issues of safety and no impair of the wounds healing. But, remember the negative result of the IN PACT DEEP trial in which there were more amputation at six months that could be influenced, but in all their factors, the lack of standardized

wound care protocols. (mumbles) has also reported recently good survival to 100% in patient treated with DCB's compared with plain balloons and with lutonic balloons. So in our institution, we did a study with the objective to examine

patient outcomes following the use of the drug-coated balloons in patients with CLI and diuretic patients with Complex Real World lesions undergoing endovascular intervention below-the-knee with the Ranger balloon coated with Paclitaxel.

This is a Two-Center Experience that is headed by the National University of Mexico in 30 patients with strict followup. With symptomatic Rutherford four to six. With the Stenosis and occlusion of infrapopliteal vessels and many degrees of calcification.

It was mandatory for all patients to have Pre-dilation before the use of DCB. We studied some endpoints like efficacy. (mumbles) Limb salvage, sustained clinical improvement, wound healing rate

and technical success and some other endpoints of safety. This is an example of multi level disease in a patient that has to be approached by (mumbles) access with a balloon preparation of the artery before the use of the DCB, and after this, we treated the anterior artery

and even to the arch of the foot. This is the way we follow our patient with ultra sound duplex with an index fibular of no more that 2.4. All patients were diabetic with Rutherford 5-6. 77% have a (mumbles) at the initial of the study.

And as you can see there were longer lesions and with higher degree of calcification and stenosis only in two of them we produced (mumbles). There were bailout stent placements in five patients and we did retrograde access in 43 patients.

Subintimal angioplasty was done in 32 patients, and Complete Index Wound Healing was in 93 of our patients. This is our Limb Salvage 94%. The Patency rate was 96% with this Kaplan Meir analysis. And in some patients we did a determination of Paclitaxel concentration in distal tissue

with the High Pressure Liquid Chromatography method. We only did this in five patients because of the lack of financial support, and technical problems. As you can see in three of them we had Complete Wound Healing.

Only one we had major amputation. This was the patient with the higher concentration of Paclitaxel in the distal tissue, and in one patient, we could not determine the concentration of Paclitaxel. This is the way we do this.

They take the sample of the patient at the moment we do the minor amputation. During day 10 after the angioplasty, we also do a (mumbles) analysis of the patient we have a limb salvage we can see arterial and capillar vessel proliferation and hyperplasia of the

arteriole media layer. But, in those patients that have major amputation even when they have a good sterio-graphic result like in this case, we see more fibrinoid necrosis which is a bad determination. So in conclusion,

angioplasty with the (mumbles) balloon maintain clinical efficacy over time is possible. We didn't see No Downstream clinical important or significant effects and high rates of Limb Salvage in complex CLI patients is possible.

Local toxic effects of paclitaxel and significant drug loss on the way to the lesion are theoretical considerations up to now because there is no biological study that can confirm this. Thank you very much.

So I think when it comes to distal bypasses and ultra-distal bypasses it's all about how we make our decision. We know now that early intervention these patients have better outcome. We use waveform analysis to make our decision about how critical their skin is

we use different topical anesthesia depending the patient's fitness. I think this is just one important point that patient's with dark skin did not show all the full range of skin changes and patients get this dark foot sign

even before they start necrosing their skin. It's very important how we give our anesthetics we use vascular anesthesia with special interest prevascular disease because these patients are quite labile. We use even sometimes inotropes during the procedure

and post operative to maintain a good blood pressure. We believe that short bypasses have got better outcomes. Dr. Veith, have already published in the 80s about short bypasses also doing now the Tibiotibial bypasses on the look anesthetic. Some patients with very high risk for general anesthesia.

And our study we showed that the majority of our patients, who had ultra-distal bypasses had the bypasses from either popliteal or SFA artery. We use different techniques to improve on how to take our bypasses from the proximal anastomosis distally. So we use hybrid revascularization, we use drug-eluting

balloons, and stenting of the SFA and popliteal artery, so we can perform our bypass from the popliteal level. We even use Remote Endarterectomy to improve on our length of the inflow. So by doing remote endarterectomy of the SFA

and popliteal artery, we can take the bypass quite distally from the popliteal artery to the foot level. This is a patient who got critical leg ischaemia on the right side limited, venous conduit. We did remote endarterectomy of her SFA and popliteal artery. And then we can

easily take the bypass from the popliteal artery down to the foot level. On the left side, she had hybrid revascularization with SFA stenting and ultra-distal bypass. We use venous conduit in almost all our patients with ultra-distal bypass.

In distal bypasses we can PTFE but the majority of our patients have long saphenous veins or even arm veins. We started using Omniflow in our infected patients for distal bypasses with quite good results. We scan all our veins prior to the procedure

to make sure that we got good quality vein and amount to perform the procedure. We have published in our small veins series less than 3mm, we still have a very good outcome in distal bypasses. Especially when we do tibial bypasses

or dorsalis pedis bypasses we turn the grafts anatomically. You can see in this angiogram the graft going through the interosseous membrane down to the foot level. We put our incision a bit immediately on the foot level so if there is necrosis of the wound on the foot level that we don't expose the graft, especially when we

knew the patient was coming from the lateral aspect through the interosseous membrane. We select our bypasses especially in the foot level using the duplic scanogram, angiogram or CT angiogram. During the procedure we don't clamp our arteries we use the Flo-Rester and Flo-Through prothesis

to stop patients from bleeding while we're doing it. And we've never used tourniquet before all this has been published. Hand held doppler is the only quality control that we do we don't do on-table angiograms and we find this quite useful for our patients.

We can do the debridement and at the same time while we're doing the bypass at the ankle level. As for anticoagulation and antiplatelet therapy We do antiplatelet therapy for all patient with distal and ultra-distal bypass. And we use heparin and warfarin for patients

who have got redo surgery. Graft surveillance for all our patients Unfortunately, we can only afford it in the NHS for one year, but if the patient get an intervention they go for another full year. Salvage angioplasty is essential for these patients

and we treat these patients as quite as a emergency when they present. So, conclusion, Mr. Sherman, ladies and gentlemen, distal and ultra-distal bypasses require good planning. We use veins for all our bypasses when it comes to the foot level and ultra-distal bypasses,

and of course selecting the target vessel in the foot is very important. Graft Surveillance is essential to maintain quality and outcome for these patients. Thank you very much.

- [Speaker] Thank you. My disclosures. So upper extremity dvt occurs in 4-10% of all causes of venous thrombosis. And while a minority, dvt in the upper extremity can often be caused by thoracic outlet syndrome, effort thrombosis, occasionally

idiopathic venous thrombosis. The majority is more likely related to central venous catheters, pacemakers, cancer, etc. This is some of the presentation of someone with Paget Schroeder or venous thoracic outlet syndrome, we're all well aware of this.

Some features of this can be sudden onset of pain, discoloration and some of this subcutaneous collateral veins that we note. Initial treatment of this is traditionally with venous thrombolysis. Although the results are good, this thrombolysis can

be associated with bleeding complications, potential for renal insufficiency, prolonged dwell times, and increased cost. I think it's important that this is not just a talk about a technique but a technique in the context of an operation this is soon to come.

Whether you choose to take out the rib at the same setting or you choose to delay the operation by a week or two, by and large the complications associated with that venous thrombolysis are going to come back and haunt you in the next operations. I think that's the context of this talk.

One of the risks I just mentioned about some of these techniques is, that's sort of curious to me, is the acute kidney injury after AngioJet venous thrombolysis. You see here, this paper, of a hundred patients, 50 AngioJet, 50 catheter directed thrombolysis, shows a statistical significantly

increased risk of acute kidney failure in the AngioJet group. Eight fold odds ratio. The Indigo system enables operators to remove the thrombus in a single setting, while potentially reducing or eliminating the need for thrombolysis.

This has already been discussed by some of the prior speakers, you see the different iterations first introduced in 2014. The CAT8 is the largest device and you can see some of the features of this proprietary technology with the separator and the directional sheaths that

allow us to aspirate nicely. This continuous suction you see here, can be very nicely controlled with an on-off switch that minimizes blood loss. It's single operator design, very easy to set up, hands free aspiration, a very simple set up.

You also heard just recently about the volume that can be aspirated in 20 seconds you see, especially with the larger profile devices, quite impressive amount of thrombus can be removed. Again, with the careful control for blood loss. The directionality of the sheath is also important,

and you can see some of the different directionality sheaths. Here's a couple case examples of a Paget-Schroder patient comes in with an acute sudden onset of arm pain and swelling discoloration, and you can see the penumbra device being used to clean out that vein.

This is another example, a 25-year old male with acute right arm swelling, sort of a body lifter type, and you can see here, this is the separator that's being moved forward and backwards, in and out to help break out the thrombus. This is the CAT8 device.

The pre-intervention picture seen here, we're crossing the lesion with a wire and and you can see the post-intervention on the right. You, of course, have the venous compression from the first rib, thoracic outlet, but the vein is widely open and now we can go ahead and see

the specimen that's retrieved as you've seen other videos in the prior presentations. This, of course, is what we're left with at the time of surgery. I only bring this up to remind us that there is a second stage to this treatment,

which is the rib resection. A combined experience that I just want to put together, very small numbers of course but, 16 patients with thoracic outlet who presented and were treated with the Penumbra system. You can see here, some of the demographic data.

I'll just point out the symptoms, of course, pain, swelling in these patients, imaging mostly venous duplex, occasionally CT or MR venogram. They all of course get venography at the time of procedure. The extent of the thrombus in all of them was complete occlusion and you can see some

of the extent in the subclavian axillary veins. Site of access can be the brachial or the basilic vein. The operative details as well, shown here, and I'll just point out the estimated blood loss, it can be very reasonable, especially with some experience you can sort of control that

on-off valve and minimize blood loss with this technique. Adjunctive therapies are shown here and of course, maybe because we're a little bit stuck on our ways, we did have a fair number of adjunctive lytic therapy. There were only three patients who had overnight lysis. A lot of venoplasty done at the time of the procedure.

All veins remained patent until the day of the rib resection but I will point out that one of these patients did develop a significant complication with hemothorax. This is one of those patients who had overnight lysis. And I point that out to stress that perhaps

this is what we're trying to move away from. So, in conclusion, mechanicothrombectomy using Indigo device shows promising initial results. Minimal blood loss, one complication of the hemothroax with the overnight lytics. No renal insufficiency or distal embolization.

The practice pattern, I think, need to adjust away from routing lytics to additionally minimize complications prior to surgery. Thank you.

- Thanks Bill and I thank Dr. Veith and the organizers of the session for the invitation to speak on histology of in-stent stenosis. These are my disclosures. Question, why bother with biopsy? It's kind of a hassle. What I want to do is present at first

before I show some of our classification of this in data, is start with this case where the biopsy becomes relevant in managing the patient. This is a 41 year old woman who was referred to us after symptom recurrence two months following left iliac vein stenting for post-thrombotic syndrome.

We performed a venogram and you can see this overlapping nitinol stents extending from the..., close to the Iliocaval Confluence down into Common Femoral and perhaps Deep Femoral vein. You can see on the venogram, that it is large displacement of the contrast column

from the edge of the stent on both sides. So we would call this sort of diffuse severe in-stent stenosis. We biopsy this material, you can see it's quite cellular. And in the classification, Doctor Gordon, our pathologist, applies to all these.

Consisted of fresh thrombus, about 15% of the sample, organizing thrombus about zero percent, old thrombus, which is basically a cellular fibrin, zero percent and diffuse intimal thickening - 85%. And you can see there is some evidence of a vascularisation here, as well as some hemosiderin deposit,

which, sort of, implies a red blood cell thrombus, histology or ancestry of this tissue. So, because the biopsy was grossly and histolo..., primarily grossly, we didn't have the histology to time, we judged that thrombolysis had little to offer this patient The stents were angioplastied

and re-lined with Wallstents this time. So, this is the AP view, showing two layers of stents. You can see the original nitinol stent on the outside, and a Wallstent extending from here. Followed venogram, venogram at the end of the procedure, shows that this displacement, and this is the maximal

amount we could inflate the Wallstent, following placement through this in-stent stenosis. And this is, you know, would be nice to have a biological or drug solution for this kind of in-stent stenosis. We brought her back about four months later, usually I bring them back at six months,

but because of the in-stent stenosis and suspecting something going on, we brought her back four months later, and here you can see that the gap between the nitinol stent and the outside the wall stent here. Now, in the contrast column, you can see that again, the contrast column is displaced

from the edge of the Wallstent, so we have recurrent in-stent stenosis here. The gross appearance of this clot was red, red-black, which suggests recent thrombus despite anticoagulation and the platelet. And, sure enough, the biopsy of fresh thrombus was 20%,

organizing thrombus-75%. Again, the old thrombus, zero percent, and, this time, diffuse intimal thickening of five percent. This closeup of some of that showing the cells, sort of invading this thrombus and starting organization. So, medical compliance and outflow in this patient into IVC

seemed acceptable, so we proceeded to doing ascending venogram to see what the outflow is like and to see, if she was an atomic candidate for recanalization. You can see these post-thrombotic changes in the popliteal vein, occlusion of the femoral vein.

You can see great stuffiness approaching these overlapping stents, but then you can see that the superficial system has been sequestered from the deep system, and now the superficial system is draining across midline. So, we planned to bring her back for recanalization.

So biopsy one with diffuse intimal thickening was used to forego thrombolysis and proceed with PTA and lining. Biopsy two was used to justify the ascending venogram. We find biopsy as a useful tool, making practical decisions. And Doctor Gordon at our place has been classifying these

biopsies in therms of: Fresh Thrombus, Organizing Thrombus, Old Thrombus and Diffuse Intimal thickening. These are panels on the side showing the samples of each of these classifications and timelines. Here is a timeline of ...

Organizing Thrombus here. To see it's pretty uniform series of followup period For Diffuse Intimal thickening, beginning shortly after the procedure, You won't see very much at all, increases with time. So, Fresh Thrombus appears to be

most prevalent in early days. Organizing Thrombus can be seen at early time points sample, as well as throughout the in-stent stenosis. Old Thrombus, which is a sort of a mystery to me why one pathway would be Old Thrombus and the other Diffuse Intimal thickening.

We have to work that out, I hope. Calcification is generally a very late feature in this process. Thank you very much.

- Thank you very much. So this is more or less a teaser. The outcome data will not be presented until next month. It's undergoing final analysis. So, the Vici Stent was the stent in the VIRTUS Trial. Self-expanding, Nitinol stent,

12, 14, and 16 in diameter, in three different lengths, and that's what was in the trial. It is a closed-cell stent, despite the fact that it's closed-cell, the flexibility is not as compromised. The deployment can be done from the distal end

or the proximal end for those who have any interest, if you're coming from the jugular or not in the direction of flow, or for whatever reason you want to deploy it from this end versus that end, those are possible in terms of the system. The trial design is not that different than the other three

now the differences, there are minor differences between the four trials that three completed, one soon to be complete, the definitions of the endpoints in terms of patency and major adverse events were very similar. The trial design as we talked about, the only thing

that is different in this study were the imaging requirements. Every patient got a venogram, an IVUS, and duplex at the insertion and it was required at the completion in one year also, the endpoint was venographic, and those who actually did get venograms,

they had the IVUS as well, so this is the only prospective study that will have that correlation of three different imagings before, after, and at follow-up. Classification, everybody's aware, PTS severity, everybody's aware, the endpoints, again as we talked about, are very similar to the others.

The primary patency in 12 months was define this freedom from occlusion by thrombosis or re-intervention. And the safety endpoints, again, very similar to everybody else. The baseline patient characteristics, this is the pivotal, as per design, there were 170 in the pivotal

and 30 in the feasibility study. The final outcome will be all mixed in, obviously. And this is the distribution of the patients. The important thing here is the severity of patients in this study. By design, all acute thrombotic patients, acute DVT patients

were excluded, so anybody who had history of DVT within three months were excluded in this patient. Therefore the patients were all either post-thrombotic, meaning true chronic rather than putting the acute patients in the post-thrombotic segment. And only 25% were Neville's.

That becomes important, so if you look at the four studies instead of an overview of the four, there were differences in those in terms on inclusion/exclusion criteria, although definitions were similar, and the main difference was the inclusion of the chronics, mostly chronics, in the VIRTUS study, the others allowed acute inclusion also.

Now in terms of definition of primary patency and comparison to the historical controls, there were minor differences in these trials in terms of what that historical control meant. However, the differences were only a few percentages. I just want to remind everyone to something we've always known

that the chronic post-thrombotics or chronic occlusions really do the worst, as opposed to Neville's and the acute thrombotics and this study, 25% were here, 75% were down here, these patients were not allowed. So when the results are known, and out, and analyzed it's important not to put them in terms of percentage

for the entire cohort, all trials need to report all of these three categories separately. So in conclusion venous anatomy and disease requires obviously dedicated stent. The VIRTUS feasibility included 30 with 170 patients in the pivotal cohort, the 12 months data will be available

in about a month, thank you.

- Thank you so much. I have no disclosures. These guidelines were published a year ago and they are open access. You can download the PDF and you can also download the app and the app was launched two months ago

and four of the ESVS guidelines are in that app. As you see, we had three American co-authors of this document, so we have very high expertise that we managed to gather.

Now the ESVS Mesenteric Guidelines have all conditions in one document because it's not always obvious if it's acute, chronic, acute-on-chron if it's arteri

if there's an underlying aneurysm or a dissection. And we thought it a benefit for the clinician to have all in one single document. It's 51 pages, 64 recommendations, more than 300 references and we use the

ESC grading system. As you will understand, it's impossible to describe this document in four minutes but I will give you some highlights regarding one of the chapters, the Acute arterial mesenteric ischaemia chapter.

We have four recommendations on how to diagnose this condition. We found that D-dimer is highly sensitive so that a normal D-dimer value excludes the condition but it's also unfortunately unspecific. There's a common misconception that lactate is

useful in this situation. Lactate becomes elevated very late when the patient is dying. It's not a good test for diagnosing acute mesenteric ischaemia earlier. And this is a strong recommendation against that.

We also ask everyone uses the CTA angiography these days and that is of course the mainstay of diagnoses as you can see on this image. Regarding treatment, we found that in patients with acute mesenteric arterial ischaemia open or endovascular revascularisation

should preferably be done before bowel surgery. This is of course an important strategic recommendation when we work together with general surgeons. We also concluded that completion imaging is important. And this is maybe one of the reasons why endovascular repair tends to do better than

open repair in these patients. There was no other better way of judging the bowel viability than clinical judgment a no-brainer is that these patients need antibiotics and it's also a strong recommendation to do second look laparotomoy.

We found that endovascular treatment is first therapy if you suspect thrombotic occlusion. They had better survival than the open repair, where as in the embolic situation, we found no difference in outcome.

So you can do both open or endo for embolus, like in this 85 year old man from Uppsala where we did a thrombus, or the embolus aspiration. Regarding follow up, we found that it was beneficial to do imaging follow-up after stenting, and also secondary prevention is important.

So in conclusion, ladies and gentlemen, the ESVS Guidelines can be downloaded freely. There are lots of recommendations regarding diagnosis, treatment, and follow-up. And they are most useful when the diagnosis is difficult and when indication for treatment is less obvious.

Please read the other chapters, too and please come to Hamburg next year for the ESVS meeting. Thank You

- Thank you for asking me to speak. Thank you Dr Veith. I have no disclosures. I'm going to start with a quick case again of a 70 year old female presented with right lower extremity rest pain and non-healing wound at the right first toe

and left lower extremity claudication. She had non-palpable femoral and distal pulses, her ABIs were calcified but she had decreased wave forms. Prior anterior gram showed the following extensive aortoiliac occlusive disease due to the small size we went ahead and did a CT scan and confirmed.

She had a very small aorta measuring 14 millimeters in outer diameter and circumferential calcium of her aorta as well as proximal common iliac arteries. Due to this we treated her with a right common femoral artery cutdown and an antegrade approach to her SFA occlusion with a stent.

We then converted the sheath to a retrograde approach, place a percutaneous left common femoral artery access and then placed an Endologix AFX device with a 23 millimeter main body at the aortic bifurcation. We then ballooned both the aorta and iliac arteries and then placed bilateral balloon expandable

kissing iliac stents to stent the outflow. Here is our pre, intra, and post operative films. She did well. Her rest pain resolved, her first toe amputation healed, we followed her for about 10 months. She also has an AV access and had a left arterial steel

on a left upper extremity so last week I was able to undergo repeat arteriogram and this is at 10 months out. We can see that he stent remains open with good flow and no evidence of in stent stenosis. There's very little literature about using endografts for occlusive disease.

Van Haren looked at 10 patients with TASC-D lesions that were felt to be high risk for aorta bifem using the Endologix AFX device. And noted 100% technical success rate. Eight patients did require additional stent placements. There was 100% resolution of the symptoms

with improved ABIs bilaterally. At 40 months follow up there's a primary patency rate of 80% and secondary of 100% with one acute limb occlusion. Zander et all, using the Excluder prothesis, looked at 14 high risk patients for aorta bifem with TASC-C and D lesions of the aorta.

Similarly they noted 100% technical success. Nine patients required additional stenting, all patients had resolution of their symptoms and improvement of their ABIs. At 62 months follow up they noted a primary patency rate of 85% and secondary of 100

with two acute limb occlusions. The indications for this procedure in general are symptomatic patient with a TASC C or D lesion that's felt to either be a high operative risk for aorta bifem or have a significantly calcified aorta where clamping would be difficult as we saw in our patient.

These patients are usually being considered for axillary bifemoral bypass. Some technical tips. Access can be done percutaneously through a cutdown. I do recommend a cutdown if there's femoral disease so you can preform a femoral endarterectomy and

profundaplasty at the same time. Brachial access is also an alternative option. Due to the small size and disease vessels, graft placement may be difficult and may require predilation with either the endograft sheath dilator or high-pressure balloon.

In calcified vessels you may need to place covered stents in order to pass the graft to avoid rupture. Due to the poor radial force of endografts, the graft must be ballooned after placement with either an aortic occlusion balloon but usually high-pressure balloons are needed.

It usually also needs to be reinforced the outflow with either self-expanding or balloon expandable stents to prevent limb occlusion. Some precautions. If the vessels are calcified and tortuous again there may be difficult graft delivery.

In patients with occluded vessels standard techniques for crossing can be used, however will require pre-dilation before endograft positioning. If you have a sub intimal cannulation this does put the vessel at risk for rupture during

balloon dilation. Small aortic diameters may occlude limbs particularly using modular devices. And most importantly, the outflow must be optimized using stents distally if needed in the iliac arteries, but even more importantly, assuring that you've

treated the femoral artery and outflow to the profunda. Despite these good results, endograft use for occlusive disease is off label use and therefor not reimbursed. In comparison to open stents, endograft use is expensive and may not be cost effective. There's no current studies looking

into the cost/benefit ratio. Thank you.

- Good morning, thank you, Dr. Veith, for the invitation. My disclosures. So, renal artery anomalies, fairly rare. Renal ectopia and fusion, leading to horseshoe kidneys or pelvic kidneys, are fairly rare, in less than one percent of the population. Renal transplants, that is patients with existing

renal transplants who develop aneurysms, clearly these are patients who are 10 to 20 or more years beyond their initial transplantation, or maybe an increasing number of patients that are developing aneurysms and are treated. All of these involve a renal artery origin that is

near the aortic bifurcation or into the iliac arteries, making potential repair options limited. So this is a personal, clinical series, over an eight year span, when I was at the University of South Florida & Tampa, that's 18 patients, nine renal transplants, six congenital

pelvic kidneys, three horseshoe kidneys, with varied aorto-iliac aneurysmal pathologies, it leaves half of these patients have iliac artery pathologies on top of their aortic aneurysms, or in place of the making repair options fairly difficult. Over half of the patients had renal insufficiency

and renal protective maneuvers were used in all patients in this trial with those measures listed on the slide. All of these were elective cases, all were technically successful, with a fair amount of followup afterward. The reconstruction priorities or goals of the operation are to maintain blood flow to that atypical kidney,

except in circumstances where there were multiple renal arteries, and then a small accessory renal artery would be covered with a potential endovascular solution, and to exclude the aneurysms with adequate fixation lengths. So, in this experience, we were able, I was able to treat eight of the 18 patients with a fairly straightforward

endovascular solution, aorto-biiliac or aorto-aortic endografts. There were four patients all requiring open reconstructions without any obvious endovascular or hybrid options, but I'd like to focus on these hybrid options, several of these, an endohybrid approach using aorto-iliac

endografts, cross femoral bypass in some form of iliac embolization with an attempt to try to maintain flow to hypogastric arteries and maintain antegrade flow into that pelvic atypical renal artery, and a open hybrid approach where a renal artery can be transposed, and endografting a solution can be utilized.

The overall outcomes, fairly poor survival of these patients with a 50% survival at approximately two years, but there were no aortic related mortalities, all the renal artery reconstructions were patented last followup by Duplex or CT imaging. No aneurysms ruptures or aortic reinterventions or open

conversions were needed. So, focus specifically in a treatment algorithm, here in this complex group of patients, I think if the atypical renal artery comes off distal aorta, you have several treatment options. Most of these are going to be open, but if it is a small

accessory with multiple renal arteries, such as in certain cases of horseshoe kidneys, you may be able to get away with an endovascular approach with coverage of those small accessory arteries, an open hybrid approach which we utilized in a single case in the series with open transposition through a limited

incision from the distal aorta down to the distal iliac, and then actually a fenestrated endovascular repair of his complex aneurysm. Finally, an open approach, where direct aorto-ilio-femoral reconstruction with a bypass and reimplantation of that renal artery was done,

but in the patients with atypical renals off the iliac segment, I think you utilizing these endohybrid options can come up with some creative solutions, and utilize, if there is some common iliac occlusive disease or aneurysmal disease, you can maintain antegrade flow into these renal arteries from the pelvis

and utilize cross femoral bypass and contralateral occlusions. So, good options with AUIs, with an endohybrid approach in these difficult patients. Thank you.

- Thanks Frank, for inviting me again. We know very well that CAS and CEA are, and will remain, emboli-generating. This is an algorithm in which we can see the microembolic profile during unprotected carotid stenting. But I am a vascular surgeon, oriented to an endovascular approach, and I believe strongly

in carotid artery stenting renaissance, when we use tips, tricks and new devices. So the real difference between the two procedures are between 0 and 30 days, and this is demonstrated by the result of 10 year by CREST and by ACT 1. So, but the procedure must be protected.

Because as the Kastrup metanalisys said, the unprotected procedure are three, four-fold increase for cerebral protection embolic. And these are the recommendations from European Society of Cardiology and American Heart Association, regarding

the use of embolic protection devices. But what kind of embolic protection device? We know very well that the cerebral distal protection have some strengths and some weaknesses. And the same is for the cerebral proximal protection with the strengths and weaknesses.

So, but this is rarely used, both in the rest of Europe and in Italy. But what about dissent? We are four studies with only prospective, including a population cohort larger than 100 patients. From Italy, from Germany, from Piotr Michalik,

from Poland, again from Italy. As these are the results that are near with the rod centered stent, with very satisfactory results. With very low rate of... This is the CLEAR-ROAD study, with very low rate of complication.

This is a total of 556 patients who underwent stenting with the new generation of stent. This is the incidence of adverse events at 30 days. So, how we can apply the benefit to our procedures with OCT? And OCT demonstrated the safety of new stent design. And why I use OCT in carotids?

With two main issues. A high definition of carotid plaque, and the correct interaction between plaque and stent. With the high definition of carotid dark in order to identify the plaque type. The degree and area of stenosis,

the presence of ulceration, and the thrombus. I study the interaction between plaque and stent. In order to study the stent apposition, the stent malapposition, the fibrous cap rupture, and the plaque micro-prolaps. So this data I published last year on

EuroIntervention, with the conclusion that in relation to the slice-based analysis, we have the correct comparison with conventional stents, and the incidence of plaque prolapse was absolutely lower. So in conclusion, why I strongly believe in a reinvigoration of carotid stenting?

For the use of better embolic protection device. For the use of newer mesh covered stents, and definitively, OCT proves it as shown. Thank you for your attention.

- Thank you. Historically, common femoral endarterectomy is a safe procedure. In this quick publication that we did several years ago, showed a 1.5% 30 day mortality rate. Morbidity included 6.3% superficial surgical site infection.

Other major morbidity was pretty low. High-risk patients we identified as those that were functionally dependent, dyspnea, obesity, steroid use, and diabetes. A study from Massachusetts General Hospital their experience showed 100% technical success.

Length of stay was three days. Primary patency of five years at 91% and assisted primary patency at five years 100%. Very little perioperative morbidity and mortality. As you know, open treatment has been the standard of care

over time the goal standard for a common femoral disease, traditionally it's been thought of as a no stent zone. However, there are increased interventions of the common femoral and deep femoral arteries. This is a picture that shows inflection point there.

Why people are concerned about placing stents there. Here's a picture of atherectomy. Irritational atherectomy, the common femoral artery. Here's another image example of a rotational atherectomy, of the common femoral artery.

And here's an image of a stent there, going across the stent there. This is a case I had of potential option for stenting the common femoral artery large (mumbles) of the hematoma from the cardiologist. It was easily fixed

with a 2.5 length BioBond. Which I thought would have very little deformability. (mumbles) was so short in the area there. This is another example of a complete blow out of the common femoral artery. Something that was much better

treated with a stent that I thought over here. What's the data on the stenting of the endovascular of the common femoral arteries interventions? So, there mostly small single centers. What is the retrospective view of 40 cases?

That shows a restenosis rate of 19.5% at 12 months. Revascularization 14.1 % at 12 months. Another one by Dr. Mehta shows restenosis was observed in 20% of the patients and 10% underwent open revision. A case from Dr. Calligaro using cover stents

shows very good primary patency. We sought to use Vascular Quality Initiative to look at endovascular intervention of the common femoral artery. As you can see here, we've identified a thousand patients that have common femoral interventions, with or without,

deep femoral artery interventions. Indications were mostly for claudication. Interventions include three-quarters having angioplasty, 35% having a stent, and 20% almost having atherectomy. Overall technical success was high, a 91%.

Thirty day mortality was exactly the same as in this clip data for open repair 1.6%. Complications were mostly access site hematoma with a low amount distal embolization had previously reported. Single center was up to 4%.

Overall, our freedom for patency or loss or death was 83% at one year. Predicted mostly by tissue loss and case urgency. Re-intervention free survival was 85% at one year, which does notably include stent as independent risk factor for this.

Amputation free survival was 93% at one year, which factors here, but also stent was predictive of amputation. Overall, we concluded that patency is lower than historical common femoral interventions. Mortality was pretty much exactly the same

that has been reported previously. And long term analysis is needed to access durability. There's also a study from France looking at randomizing stenting versus open repair of the common femoral artery. And who needs to get through it quickly?

More or less it showed no difference in outcomes. No different in AVIs. Higher morbidity in the open group most (mumbles) superficial surgical wound infections and (mumbles). The one thing that has hit in the text of the article

a group of mostly (mumbles) was one patient had a major amputation despite having a patent common femoral artery stent. There's no real follow up this, no details of this, I would just caution of both this and VQI paper showing increased risk amputation with stenting.

Thank you.

- So Beyond Vascular procedures, I guess we've conquered all the vascular procedures, now we're going to conquer the world, so let me take a little bit of time to say that these are my conflicts, while doing that, I think it's important that we encourage people to access the hybrid rooms,

It's much more important that the tar-verse done in the Hybrid Room, rather than moving on to the CAT labs, so we have some idea basically of what's going on. That certainly compresses the Hybrid Room availability, but you can't argue for more resources

if the Hybrid Room is running half-empty for example, the only way you get it is by opening this up and so things like laser lead extractions or tar-verse are predominantly still done basically in our hybrid rooms, and we try to make access for them. I don't need to go through this,

you've now think that Doctor Shirttail made a convincing argument for 3D imaging and 3D acquisition. I think the fundamental next revolution in surgery, Every subspecialty is the availability of 3D imaging in the operating room.

We have lead the way in that in vascular surgery, but you think how this could revolutionize urology, general surgery, neurosurgery, and so I think it's very important that we battle for imaging control. Don't give your administration the idea that

you're going to settle for a C-arm, that's the beginning of the end if you do that, this okay to augment use C-arms to augment your practice, but if you're a finishing fellow, you make sure you go to a place that's going to give you access to full hybrid room,

otherwise, you are the subservient imagers compared to radiologists and cardiologists. We need that access to this high quality room. And the new buzzword you're going to hear about is Multi Modality Imaging Suites, this combination of imaging suites that are

being put together, top left deserves with MR, we think MR is the cardiovascular imaging modality of the future, there's a whole group at NIH working at MR Guided Interventions which we're interested in, and the bottom right is the CT-scan in a hybrid op

in a hybrid room, this is actually from MD Anderson. And I think this is actually the Trauma Room of the future, makes no sense to me to take a patient from an emergency room to a CT scanner to an and-jure suite to an operator it's the most dangerous thing we do

with a trauma patient and I think this is actually a position statement from the Trauma Society we're involved in, talk about how important it is to co-localize this imaging, and I think the trauma room of the future is going to be an and-jure suite

down with a CT scanner built into it, and you need to be flexible. Now, the Empire Strikes Back in terms of cloud-based fusion in that Siemans actually just released a portable C-arm that does cone-beam CT. C-arm's basically a rapidly improving,

and I think a lot of these things are going to be available to you at reduced cost. So let me move on and basically just show a couple of examples. What you learn are techniques, then what you do is look for applications to apply this, and so we've been doing

translumbar embolization using fusion and imaging guidance, and this is a case of one of my partners, he'd done an ascending repair, and the patient came back three weeks later and said he had sudden-onset chest pain and the CT-scan showed that there was a

sutured line dehiscence which is a little alarming. I tried to embolize that endovascular, could not get to that tiny little orifice, and so we decided to watch it, it got worse, and bigger, over the course of a week, so clearly we had to go ahead and basically and fix this,

and we opted to use this, using a new guidance system and going directly parasternal. You can do fusion of blood vessels or bones, you can do it off anything you can see on flu-roid, here we actually fused off the sternal wires and this allows you to see if there's

respiratory motion, you can measure in the workstation the depth really to the target was almost four and a half centimeters straight back from the second sternal wire and that allowed us really using this image guidance system when you set up what's called the bullseye view,

you look straight down the barrel of a needle, and then the laser turns on and the undersurface of the hybrid room shows you where to stick the needle. This is something that we'd refined from doing localization of lung nodules

and I'll show you that next. And so this is the system using the C-star, we use the breast, and the localization needle, and we can actually basically advance that straight into that cavity, and you can see once you get in it,

we confirmed it by injecting into it, you can see the pseudo-aneurism, you can see the immediate stain of hematoma and then we simply embolize that directly. This is probably safer than going endovascular because that little neck protects about

the embolization from actually taking place, and you can see what the complete snan-ja-gram actually looked like, we had a pig tail in the aura so we could co-linearly check what was going on and we used docto-gramming make sure we don't have embolization.

This patient now basically about three months follow-up and this is a nice way to completely dissolve by avoiding really doing this. Let me give you another example, this actually one came from our transplant surgeon he wanted to put in a vas,

he said this patient is really sick, so well, by definition they're usually pretty sick, they say we need to make a small incision and target this and so what we did was we scanned the vas, that's the hardware device you're looking at here. These have to be

oriented with the inlet nozzle looking directly into the orifice of the mitro wall, and so we scanned the heart with, what you see is what you get with these devices, they're not deformed, we take a cell phone and implant it in your chest,

still going to look like a cell phone. And so what we did, image fusion was then used with two completely different data sets, it mimicking the procedure, and we lined this up basically with a mitro valve, we then used that same imaging guidance system

I was showing you, made a little incision really doing onto the apex of the heart, and to the eur-aph for the return cannula, and this is basically what it looked like, and you can actually check the efficacy of this by scanning the patient post operatively

and see whether or not you executed on this basically the same way, and so this was all basically developed basing off Lung Nodule Localization Techniques with that we've kind of fairly extensively published, use with men can base one of our thoracic surgeons

so I'd encourage you to look at other opportunities by which you can help other specialties, 'cause I think this 3D imaging is going to transform what our capabilities actually are. Thank you very much indeed for your attention.

- Thank you for introduction. Thanks to Frank Veith for the kind invitation to present here our really primarily single-center experience on this new technique. This is my disclosure. So what you really want

in the thromboembolic acute events is a quick flow restoration, avoid lytic therapies, and reduce the risk of bleeding. And this can be achieved by surgery. However, causal directed local thrombolysis

is much less invasive and also give us a panoramic view and topographic view that is very useful in these cases. But it takes time and is statistically implied

and increases risk of bleeding. So theoretically percutaneous thrombectomy can accomplish all these tasks including a shorter hospital stay. So among the percutaneous thrombectomy devices the Indigo System is based on a really simple

aspiration mechanism and it has shown high success in ischemic stroke. This is one of my first cases with the Indigo System using a 5 MAX needle intervention

adapted to this condition. And it's very easy to understand how is fast and effective this approach to treat intraprocedural distal embolization avoiding potential dramatic clinical consequences, especially in cases like this,

the only one foot vessel. This is also confirmed by this technical note published in 2015 from an Italian group. More recently, other papers came up. This, for example, tell us that

there has been 85% below-the-knee primary endpoint achievement and 54% in above-the-knee lesions. The TIMI score after VAT significantly higher for BTK lesions and for ATK lesions

a necessity of a concomitant endovascular therapy. And James Benenati has already told us the results of the PRISM trials. Looking into our case data very quickly and very superficially we can summarize that we had 78% full revascularization.

In 42% of cases, we did not perform any lytic therapy or very short lytic therapy within three hours. And in 36% a long lytic therapy was necessary, however within 24 hours. We had also 22% failure

with three surgery necessary and one amputation. I must say that among this group of patients, twenty patients, there were also patients like this with extended thrombosis from the groin to the ankle

and through an antegrade approach, that I strongly recommend whenever possible, we were able to lower the aspiration of the clots also in the vessel, in the tibial vessels, leaving only this region, thrombosis

needed for additional three hour infusion of TPA achieving at the end a beautiful result and the patient was discharged a day after. However not every case had similar brilliant result. This patient went to surgery and he went eventually to amputation.

Why this? And why VAT perform better in BTK than in ATK? Just hypotheses. For ATK we can have unknown underlying chronic pathology. And the mismatch between the vessel and the catheter can be a problem.

In BTK, the thrombus is usually soft and short because it is an acute iatrogenic event. Most importantly is the thrombotic load. If it is light, no short, no lytic or short lytic therapy is necessary. Say if heavy, a longer lytic therapy and a failure,

regardless of the location of the thrombosis, must be expected. So moving to the other topic, venous occlusive thrombosis. This is a paper from a German group. The most exciting, a high success rate

without any adjunctive therapy and nine vessels half of them prosthetic branch. The only caution is about the excessive blood loss as a main potential complication to be checked during and after the procedure. This is a case at my cath lab.

An acute aortic renal thrombosis after a open repair. We were able to find the proximate thrombosis in this flush occlusion to aspirate close to fix the distal stenosis

and the distal stenosis here and to obtain two-thirds of the kidney parenchyma on both sides. And this is another patient presenting with acute mesenteric ischemia from vein thrombosis.

This device can be used also transsympatically. We were able to aspirate thrombi but after initial improvement, the patient condition worsened overnight. And the CT scan showed us a re-thrombosis of the vein. Probably we need to learn more

in the management of these patients especially under the pharmacology point of view. And this is a rapid overview on our out-of-lower-limb case series. We had good results in reimplanted renal artery, renal artery, and the pulmonary artery as well.

But poor results in brachial artery, fistula, and superior mesenteric vein. So in conclusion, this technology is an option for quick thromboembolic treatment. It's very effective for BTK intraprocedural embolic events.

The main advantage is a speeding up the blood flow and reestablishing without prolonged thrombolysis or reducing the dosage of the thrombolysis. Completely cleaning up extensive thromobosed vessels is impossible without local lytic therapies. This must be said very clearly.

Indigo technology is promising and effective for treatment of acute renovisceral artery occlusion and sub massive pulmonary embolism. Thank you for your attention. I apologize for not being able to stay for the discussion

because I have a flight in a few hours. Thank you very much.

- Well, thank you Frank and Enrico for the privilege of the podium and it's the diehards here right now. (laughs) So my only disclosure, this is based on start up biotech company that we have formed and novel technology really it's just a year old

but I'm going to take you very briefly through history very quickly. Hippocrates in 420 B.C. described stroke for the first time as apoplexy, someone be struck down by violence. And if you look at the history of stroke,

and trying to advance here. Let me see if there's a keyboard. - [Woman] Wait, wait, wait, wait. - [Man] No, there's no keyboard. - [Woman] It has to be opposite you. - [Man] Left, left now.

- Yeah, thank you. Are we good? (laughs) So it's not until the 80s that really risk factors for stroke therapy were identified, particularly hypertension, blood pressure control,

and so on and so forth. And as we go, could you advance for me please? Thank you, it's not until the 90s that we know about the randomized carotid trials, and advance next slide please, really '96 the era of tPA that was

revolutionary for acute stroke therapy. In the early 2000s, stroke centers, like the one that we have in the South East Louisiana and New Orleans really help to coordinate specialists treating stroke. Next slide please.

In 2015, the very famous HERMES trial, the compilation of five trials for mechanical thrombectomy of intracranial middle and anterior cerebral described the patients that could benefit and we will go on into details, but the great benefit, the number needed to treat

was really five to get an effect. Next slide. This year, "wake up" strokes, the extension of the timeline was extended to 24 hours, increase in potentially the number of patients that could be treated with this technology.

Next please. And the question is really how can one preserve the penumbra further to treat the many many patients that are still not offered mechanical thrombectomy and even the ones that are, to get a much better outcome because not everyone

returns to a normal function. Next, so the future I think is going to be delivery of a potent neuroprotection strategy to the penumbra through the stroke to be able to preserve function and recover the penumbra from ongoing death.

Next slide. So that's really the history of stroke. Advance to the next please. Here what you can see, this is a patient of mine that came in with an acute carotid occlusion that we did an emergency carotid endarterectomy

with an neuro interventionalist after passage of aspiration catheter, you can see opening of the middle cerebral M1 and M2 branches. The difference now compared to five, eight, 10 years ago is that now we have catheters in the middle cerebral artery,

the anterior cerebral artery. After tPA and thrombectomy for the super-selective, delivery of a potent neuroprotective agent and by being able to deliver it super-selectively, bioavailability issues can be resolved, systemic side effects could be minimized.

Of course, it's important to remember that penumbra is really tissue at risk, that's progression towards infarction. And everybody is really different as to when this occurs. And it's truly all based on collaterals.

So "Time is brain" that we hear over and over again, at this meeting there were a lot of talks about "Time is brain" is really incorrect. It's really "Collaterals are brain" and the penumbra is really completely based on what God gives us when we're born, which is really

how good are the collaterals. So the question is how can the penumbra be preserved after further mechanical thrombectomy? And I think that the solution is going to be with potent neuroprotection delivery to the penumbra. These are two papers that we published in late 2017

in Nature, in science journals Scientific Reports and Science Advances by our group demonstrating a novel class of molecules that are potent neuroprotective molecules, and we will go into details, but we can discuss it if there's interest, but that's just one candidate.

Because after all, when we imaged the penumbra in acute stroke centers, again, it's all about collaterals and I'll give you an example. The top panel is a patient that comes in with a good collaterals, this is a M1 branch occlusion. In these three phases which are taken at

five second intervals, this patient is probably going to be offered therapy. The patients that come in with intermediate or poor collaterals may or may not receive therapy, or this patient may be a no-go. And you could think that if neuroprotection delivery

to the penumbra is able to be done, that these patients may be offered therapy which they currently are not. And even this patient that's offered therapy, might then leave with a moderate disability, may have a much better functional

independence upon discharge. When one queries active clinical trials, there's nothing on intra arterial delivery of a potent neuroprotection following thrombectomy. These are two trials, an IV infusion, peripheral infusion, and one on just verapamil to prevent vasospasm.

So there's a large large need for delivery of a potent neuroprotection following thrombectomy. In conclusion, we're in the door now where we can do mechanical thrombectomy for intracranial thrombus, obviously concomitant to what we do in the carotid bifurcation is rare,

but those patients do present. There's still a large number of patients that are still not actively treated, some estimate 50 to 60% with typical mechanical thrombectomy. And one can speculate how ideally delivery of a potent neuroprotection to this area could

help treat 50, 60% of patients that are being denied currently, and even those that are being treated could have a much better recovery. I'd like to thank you, Frank for the meeting, and to Jackie for the great organization.

- Thank you very much both. It was a great pleasure to see you. I continue to be grateful for the guidance you have given me over the years. Thank you to the organizers for advising me to speak. These are my disclosures. So really there are two questions posed by this topic.

One is, is the patent popliteal vein necessary? I would assume from this is it necessary for patency and symptom relief to be achieved in treating patients with both acute DVT and potentially chronic. And has the evolution formic mechanical therapy

led to over stenting. Which means we have to ask the question what is an appropriate rate for stenting. I am not sure we know the answer to that. So being able to answer over stenting requires us to know how many patients

actually need the stent in the first place in acute DVT treatments. The problem is essentially this. Is that when we form lithic therapies and this is a classic case of treatment formed with formic and mechanical device

but without a follow up using lithic in the patient for whom lithic was not feasible. You end up opening up a vessel but you can see from the image on the left hand side that there is a degree still of luminol contrast deficit suggesting some cult left behind

in the external iliac vein. Well there is obviously a May-Thurner legion at the top. The question of over stenting is one of do we just stent the May-Thruner and extend it down into the external iliac vein to trap that thrombus

or would a period of time of lithic have resulted in this clot resolving and not needed a stent at the end of it. To get to the question of how many people should be stented. The only way we can really do this

is try and exstipulate from the literature to some extent. This is the short and long term outcome from the Kevin study. Where there is ultrasound follow up of patients underwent standard treatment only.

And a additional group in the patients had catheter-directed thrombolysis. We can see there that the patients did six months in catheter-directed thrombolysis group is around 60%. And the patency seen with the non treated group

is around 40%. If we kind of use these numbers as a guide we probably expect therefore that the stent rate would be somewhere between 40 and 60 percent. To account for treating the outflow structure that presumably patients see at six months.

But this is clearly not a very rebost method of being absolutely clear on who needs stents. Additional method is we don't really have and answer for who should be stented at the end of a procedure. So if you look at the massive variability

in the other studies. We see that attract stent rate is approximately 28% for the study. Which is obviously a operative discretion and has been criticized for that reason. But there is no comment on the Popliteal vein

or Popliteal vein patency. Cavent did an stent rate of 15% again with no real comment on whether the Popliteal vein was open and it wasn't a prerequisite for treatment in the study. This contrast with the Ansberg Aspirex Registry.

Which is a registry of a purely mechanical device to aspirex clot and the stent rate is 100%. Baekgaard Copenhagen used a catered-directed thrombolysis with a mandated open popliteal vein for purpose to be in the study. He has a stent rate of 60%.

My own personal experience of 160 odd patients is that were stenting around 80% of patients with outflow legion at the end of treatment. And were not really bothered by whether the popliteal vein is clear or not. But that doesn't necessarily answer the question

whether it makes a difference in the long run. So its very difficult even looking at the data we have because there is no standard definition of what a outflow stenosis is. There is no objective measure for an outflow stenosis. So stenting becomes and operative discretion decision.

But you would have to say that if your taking purely mechanical devices and the stent rates are going up to 100% that the inclination would be that there is potential for formic mechanical therapy to lead to overstenting and increase use

for stents for sure. In our experience then we had 81 patients who had CDT alone verse 70 patients who had AngioJet Thrombectomy. The basic characteristics of the group are pretty much identical.

With similar ages and no difference between whether the thrombus with left side or right side of body or so on. And these are the patency curves for the different groups with equivalent primary, primary assisted and secondary patency over two yeas.

We had no difference in stent rates with the median stenting of 80% in both groups with two stents used in average for each of those patients. However in our practice AngioJet is rarely used alone. So we had 70 patients for whom AngioJet was used. 24 of those where AngioJet was used up front

as the first line of treatment followed by some CDT. We have tended find that if we wanted full clock clearance. We have always had omit to some extent. And single stage therapy is quite difficult to achieve unless you spent a lot of time in it.

Patency in the popliteal vein is clearly affected by some extent. These are our follow up results if we don't have a patent popliteal vein at the end. It does drop off in stent patency. So the conclusions then I think.

Is that patent popliteal vein is necessary for long term results. But you can still treat patients that have acute popliteal vein for larsons that is not a contraindication. Pure mechanical therapies may well lead to higher stent rate.

But is this a bad thing or a good thing? We don't really know this at this stage as to what the long term outcomes will be. Thank you very much.

- I want to thank Dr. Veith for the invitation to present this. There are no disclosures. So looking at cost effectiveness, especially the comparison of two interventions based on cost and the health gains, which is usually reported

through disability adjusted life years or even qualities. It's not to be really confused with cost benefit analysis where both paramaters are used, looked at based on cost. However, this does have different implications from different stakeholders.

And we look, at this point, between the medical center or the medical institution and as well as the payers. Most medical centers tend to look at how much this is costing them

and what is being reimbursed. What's the subsequent care interventions and are there any additional payments for some of these new, novel technologies. What does the payers really want to know, what are they getting for the money,

their expenditures and from here, we'll be looking mainly at Medicare. So, background, we've all seen this, but basically, you know, balloon angioplasty and stents have been out for a while and the outcomes aren't bad but they're not great.

They do have continued high reintervention rates and patency problems. Therefore, drug technology has sort of emerged as a possible alternative with better patency rates. And when we look at this, just some, some backgrounds, when you look at any sort of angioplasty,

from the physician's side, we bill under a certain CPT code and it falls under a family of codes for reimbursement in the medical center called an APC. Within those, you can further break it down to the cost of the product.

In this situation, total products cost around 1400 dollars and the balloons are estimated to be 406 dollars in cost. However, in drug-coated balloons, there was an additional payment, which average, because they're such more expensive devices than the allotments and this had an additional payment.

However, this expired in January of this year. When you look at Medicare reimbursement guidelines, you'll see that on an outpatient hospital setting, there's a reimbursement for the medical center as well as for the physican which is, oops sorry, down eight percent from last year.

And they also publish a geometric mean cost, which is quite higher than we expected. And then the office based practice is also the reimbursement pattern and this is slated to go down also by a few percentage points.

When you look at, I'm sorry, when you look at stents, however, it's a different family of CPT codes and APC family also. Here you'll see the supply cost is much higher in the, I'm sorry, the stent in this category is actually 3600 dollars.

The average cost for drug-eluting stents, around 1500 dollars and the only pass through that existed was on the inpatient side of it. Again, looking at Medicare guidelines, the reimbursement will be going down 8 percent

for the outpatient setting and the geometric mean cost is 11,700. So, what we want to look at really is what is the financial impact looking at primary patency, target lesion revascularization based on meta analysis. And the reinterventions are where the real cost

is going to come into effect. We also want to look at, when it doesn't work and we do bailout stenting, what is the cost going to happen there, which is not often looked at in most of these studies. So looking at a hypothetical situation,

you've got 100 patients, any office based practice, the payee will pay about 5145. There's a pass through payment which averages 1700 dollars per stent. Now, if you look at bailout stenting, 18.5 percent at one year,

this is the additional cost that would be associated with that from a payer standpoint. Targeted risk for revascularization was 12 percent of additional costs. So the total one year cost, we estimated, was almost a million dollars

and the cost per primary patency limb at one year was 13 four. In a similar fashion, for drug-eluting stents, you'll see that there's no pass through payment, but although there is a much higher payer expenditure. The reintervention rate was about 8.4 percent

at one year for the additional cost. And you'll see here, at the one year mark, the cost per patent limb is about 12,600 dollars. So how 'about the medical center, looking at Medicare claims data, you'll see the average cost for them is 745,000,

the medical center. Additional costs listed at another 1500. Bailout renting, as previously, with relate to a total cost at one year of 1.2 million or at 16,900 dollars per limb. Looking at the drug-eluting stents,

we didn't add any additional costs because the drug-eluting stents are cheaper than the current system that is in there but the reinterventions still exist for a cost per patent limb at one year of 14 six. So in essence, a few other studies have looked

at some model, both a European model and in the U.S. where the number of reinterventions at two to five years will actually offset the additional cost of drug-eluting stents and make it a financially advantageous process.

And in conclusion, drug-eluting stents do have a better primary patency and a decreased TLR than drug-coated balloons or even other, but they are more expensive than conventional treatment such as balloon angioplasty and bare-metal stents.

There is a decreased reintervention rate and the bailout stenting, which is not normally accounted for in a financial standpoint does have a dramatic impact and the loss of the pass through makes me make some of the drug-coated balloons

a little more prohibitive in process. Thank you.

- Thank you. I have two talks because Dr. Gaverde, I understand, is not well, so we- - [Man] Thank you very much. - We just merged the two talks. All right, it's a little joke. For today's talk we used fusion technology

to merge two talks on fusion technology. Hopefully the rest of the talk will be a little better than that. (laughs) I think we all know from doing endovascular aortic interventions

that you can be fooled by the 2D image and here's a real life view of how that can be an issue. I don't think I need to convince anyone in this room that 3D fusion imaging is essential for complex aortic work. Studies have clearly shown it decreases radiation,

it decreases fluoro time, and decreases contrast use, and I'll just point out that these data are derived from the standard mechanical based systems. And I'll be talking about a cloud-based system that's an alternative that has some advantages. So these traditional mechanical based 3D fusion images,

as I mentioned, do have some limitations. First of all, most of them require manual registration which can be cumbersome and time consuming. Think one big issue is the hardware based tracking system that they use. So they track the table rather than the patient

and certainly, as the table moves, and you move against the table, the patient is going to move relative to the table, and those images become unreliable. And then finally, the holy grail of all 3D fusion imaging is the distortion of pre-operative anatomy

by the wires and hardware that are introduced during the course of your procedure. And one thing I'd like to discuss is the possibility that deep machine learning might lead to a solution to these issues. How does 3D fusion, image-based 3D fusion work?

Well, you start, of course with your pre-operative CT dataset and then you create digitally reconstructed radiographs, which are derived from the pre-op CTA and these are images that resemble the fluoro image. And then tracking is done based on the identification

of two or more vertebral bodies and an automated algorithm matches the most appropriate DRR to the live fluoro image. Sounds like a lot of gobbledygook but let me explain how that works. So here is the AI machine learning,

matching what it recognizes as the vertebral bodies from the pre-operative CT scan to the fluoro image. And again, you get the CT plus the fluoro and then you can see the overlay with the green. And here's another version of that or view of that.

You can see the AI machine learning, identifying the vertebral bodies and then on your right you can see the fusion image. So just, once again, the AI recognizes the bony anatomy and it's going to register the CT with the fluoro image. It tracks the patient, not the table.

And the other thing that's really important is that it recognizes the postural change that the patient undergoes between the posture during the CT scan, versus the posture on the OR table usually, or often, under general anesthesia. And here is an image of the final overlay.

And you can see the visceral and renal arteries with orange circles to identify them. You can remove those, you can remove any of those if you like. This is the workflow. First thing you do is to upload the CT scan to the cloud.

Then, when you're ready to perform the procedure, that is downloaded onto the medical grade PC that's in your OR next to your fluoro screen, and as soon as you just step on the fluoro pedal, the CYDAR overlay appears next to your, or on top of your fluoro image,

next to your regular live fluoro image. And every time you move the table, the computer learning recognizes that the images change, and in a couple of seconds, it replaces with a new overlay based on the obliquity or table position that you have. There are some additional advantages

to cloud-based technology over mechanical technology. First of all, of course, or hardware type technology. Excuse me. You can upgrade it in real time as opposed to needing intermittent hardware upgrades. Works with any fluoro equipment, including a C-arm,

so you don't have to match your 3D imaging to the brand of your fluoro imaging. And there's enhanced accuracy compared to mechanical registration systems as imaging. So what are the clinical applications that this can be utilized for?

Fluoroscopy guided endovascular procedures in the lower thorax, abdomen, and pelvis, so that includes EVAR and FEVAR, mid distal TEVAR. At present, we do need two vertebral bodies and that does limit the use in TEVAR. And then angioplasty stenting and embolization

of common iliac, proximal external and proximal internal iliac artery. Anything where you can acquire a vertebral body image. So here, just a couple of examples of some additional non EVAR/FEVAR/TEVAR applications. This is, these are some cases

of internal iliac embolization, aortoiliac occlusion crossing, standard EVAR, complex EVAR. And I think then, that the final thing that I'd like to talk about is the use with C-arm, which is think is really, extremely important.

Has the potential to make a very big difference. All of us in our larger OR suites, know that we are short on hybrid availability, and yet it's difficult to get our institutions to build us another hybrid room. But if you could use a high quality 3D fusion imaging

with a high quality C-arm, you really expand your endovascular capability within the operating room in a much less expensive way. And then if you look at another set of circumstances where people don't have a hybrid room at all, but do want to be able to offer standard EVAR

to their patients, and perhaps maybe even basic FEVAR, if there is such a thing, and we could use good quality imaging to do that in the absence of an actual hybrid room. That would be extremely valuable to be able to extend good quality care

to patients in under-served areas. So I just was mentioning that we can use this and Tara Mastracci was talking yesterday about how happy she is with her new room where she has the use of CYDAR and an excellent C-arm and she feels that she is able to essentially run two rooms,

two hybrid rooms at once, using the full hybrid room and the C-arm hybrid room. Here's just one case of Dr. Goverde's. A vascular case that he did on a mobile C-arm with aortoiliac occlusive disease and he places kissing stents

using a CYDAR EV and a C-arm. And he used five mils of iodinated contrast. So let's talk about a little bit of data. This is out of Blain Demorell and Tara Mastrachi's group. And this is use of fusion technology in EVAR. And what they found was that the use of fusion imaging

reduced air kerma and DSA runs in standard EVAR. We also looked at our experience recently in EVAR and FEVAR and we compared our results. Pre-availability of image based fusion CT and post image based fusion CT. And just to clarify,

we did have the mechanical product that Phillip's offers, but we abandoned it after using it a half dozen times. So it's really no image fusion versus image fusion to be completely fair. We excluded patients that were urgent/emergent, parallel endographs, and IBEs.

And we looked at radiation exposure, contrast use, fluoro time, and procedure time. The demographics in the two groups were identical. We saw a statistically significant decrease in radiation dose using image based fusion CT. Statistically a significant reduction in fluoro time.

A reduction in contrast volume that looks significant, but was not. I'm guessing because of numbers. And a significantly different reduction in procedure time. So, in conclusion, image based 3D fusion CT decreases radiation exposure, fluoro time,

and procedure time. It does enable 3D overlays in all X-Ray sets, including mobile C-arm, expanding our capabilities for endovascular work. And image based 3D fusion CT has the potential to reduce costs

and improve clinical outcomes. Thank you.

- Thank you very much for the very kind invitation, and I promise I'll do my best to stick to time. The answer is probably to this audience I don't really need to say very much about the ATTRACT trial, but I think it is quite important to note that the ATTRACT trials have now been out for some time, and it is constantly being

talked about in its various dimensions. So I'm going to just spend a few seconds really talking about the ATTRACT trial. A large number of patients screened. One in 41 patients were actually recruited into it and it was a trial that ran for a long time.

Wasn't really with respect to the primary endpoint any particularly good evidence, but for those people who had moderate or severe post-thrombotic syndrome, it probably was of benefit. And if you looked at the Villalta score

and the VCSS scores there was some evidence to support it. So overall, probably some positive take-home messages, but not as affirmative as people would have thought. Now the reason that I've dwelled a little bit on that is that actually, what do we mean when we talk about the post-thrombotic syndrome?

Because I would say in the upper limb, because I have never personally seen an ulcer in the upper limb. Has anybody seen an ulcer in the upper limb due to venous disease? No.

So in a way we are talking about a slightly different entity. We are talking about a limb that has undoubtedly much more finer movements. And there was depression by some people with the results of the ATTRACT trial.

But when you look at the five year results from the CaVenT trial, there was some evidence to suggest that actually, as you get further out, there may be some benefit. If you look at this summation analysis, and I completely accept this is related to the leg,

again, there may be some benefit from the CDT. Now, this is a case of mine. Now I wonder if any of you can tell me how many stages may have been involved from going from the right, to having a ballonplasty in the vein. Pick a number, anywhere between five and ten.

The answer is you have numerous checks of the thrombolysis, you may have a venoplasty, you might have a first rib excision. You may then have occlusion and then realize this before you go on and do the first rib. So all I'm suggesting to you that this is not

a cheap treatment to offer patients treatment to the upper limb. Then we looked forward to some help from the guidelines. Well we look at the American guidelines and give or take, I think the answer is we probably shouldn't be doing it and that we should be only offering anticoagulation.

So do the Brits help? Well actually if you look at the Brits, it sort of says well, you can think a bit about doing decompression, but really if I was standing up in a court of law, I really wouldn't want much support from this guideline

that I had done the right thing. And then the International Society of Thrombolysis and Hemostasis really says well, you can do a little bit of this that thoracic outlet syndrome may be a risk factor. But give or take, surgeries still are a little bit dubious.

So, really there's one good review out there, and this is the review of Vasquez that basically looked at 146 articles, and they found some data on just under 1300 patients. And they postulated and chose some evidence to suggest that there was some evidence

that first rib excision and thrombolysis reduce PTS, and that anticoagulation alone was not enough for the majority of the patients. Very difficult to work out how you selected which patients you should or should not intervene on. Now, I'm sure everybody is rather sick and tired

of me talking about money, and I accept it doesn't really apply here. But money is actually quite important. Five interventions to prevent something that may not happen and at worst may be just a few collateral veins across the chest.

So ladies and gentlemen, I would want you to think very hard, is it actually cost-effective to be offering all patients presenting with an early auxiliary vein thrombosis thrombolysis, and then subsequently first rib excision? These are some of the truths, I think the answer is

it does seem to work. You do need to recognize and make the diagnosis. Usually delayed thrombolysis doesn't work, but there are lots of questions that are unanswered. And how would you defend what you have done in a court of law?

Somebody has a stroke, you then do the first rib, they get a large hemothorax, and they then die because there had been too much TPA on board. Yes, give it some thought. So ladies and gentlemen, I'm afraid I haven't actually answered the question,

but I think you need to give it careful consideration, what are the indications and merits? Thank you very much.

- Good morning, I would like to thank Dr. Veith, and the co-chairs for inviting me to talk. I have nothing to disclose. Some background on this information, patients with Inflammatory Bowel Disease are at least three times more likely to suffer a thrombo-embolic event, when compared to the general population.

The incidence is 0.1 - 0.5% per year. Overall mortality associated with these events can be as high as 25%, and postmortem exams reveal an incidence of 39-41% indicating that systemic thrombo-embolism is probably underdiagnosed. Thrombosis mainly occurs during disease exacerbation,

however proctocolectomy has not been shown to be preventative. Etiology behind this is not well known, but it's thought to be multifactorial. Including decrease in fibrinolytic activity, increase in platelet activation,

defects in the protein C pathway. Dyslipidemia and long term inflammation also puts patients at risk for an increase in atherosclerosis. In addition, these patients lack vitamins, are often dehydrated, anemic, and at times immobilized. Traditionally, the venous thrombosis is thought

to be more common, however recent retrospective review of the Health Care Utilization Project nationwide inpatient sample database, reported not only an increase in the incidence but that arterial complications may happen more frequently than venous.

I was going to present four patients over the course of one year, that were treated at my institution. The first patient is 25 year old female with Crohn's disease, who had a transverse colectomy one year prior to presentation. Presented with right flank pain, she was found to have

right sided PE, a right sided pulmonary vein thrombosis and a left atrial thrombosis. She was admitted for IV heparin, four days later she had developed abdominal pains, underwent an abdominal CTA significant for SMA occlusion prompting an SMA thrombectomy.

This is a picture of her CAT scan showing the right PE, the right pulmonary vein thrombosis extending into the left atrium. The SMA defect. She returned to the OR for second and third looks, underwent a subtotal colectomy,

small bowel resection with end ileostomy during the third operation. She had her heparin held post-operatively due to significant post-op bleeding, and over the next three to five days she got significantly worse, developed progressive fevers increase found to have

SMA re-thrombosis, which you can see here on her CAT scan. She ended up going back to the operating room and having the majority of her small bowel removed, and went on to be transferred to an outside facility for bowel transplant. Our second patient is a 59 year old female who presented

five days a recent flare of ulcerative colitis. She presented with right lower extremity pain and numbness times one day. She was found to have acute limb ischemia, category three. An attempt was made at open revascularization with thrombectomy, however the pedal vessels were occluded.

The leg was significantly ischemic and flow could not be re-established despite multiple attempts at cut-downs at different levels. You can see her angiogram here at the end of the case. She subsequently went on to have a below knee amputation, and her hospital course was complicated by

a colonic perforation due to the colitis not responding to conservative measures. She underwent a subtotal colectomy and end ileostomy. Just in the interest of time we'll skip past the second, third, and fourth patients here. These patients represent catastrophic complications of

atypical thrombo-embolic events occurring in IBD flares. Patients with inflammatory disease are at an increased risk for both arterial and venous thrombotic complications. So the questions to be answered: are the current recommendations adequate? Currently heparin prophylaxis is recommended for

inpatients hospitalized for severe disease. And, if this is not adequate, what treatments should we recommend, the medication choice, and the duration of treatment? These arterial and venous complications occurring in the visceral and peripheral arteries

are likely underappreciated clinically as a risk for patients with IBD flares and they demonstrate a need to look at further indications for thrombo-prophylaxis. Thank you.

- Thank you very much, Frank, ladies and gentlemen. Thank you, Mr. Chairman. I have no disclosure. Standard carotid endarterectomy patch-plasty and eversion remain the gold standard of treatment of symptomatic and asymptomatic patient with significant stenosis. One important lesson we learn in the last 50 years

of trial and tribulation is the majority of perioperative and post-perioperative stroke are related to technical imperfection rather than clamping ischemia. And so the importance of the technical accuracy of doing the endarterectomy. In ideal world the endarterectomy shouldn't be (mumbling).

It should contain embolic material. Shouldn't be too thin. While this is feasible in the majority of the patient, we know that when in clinical practice some patient with long plaque or transmural lesion, or when we're operating a lesion post-radiation,

it could be very challenging. Carotid bypass, very popular in the '80s, has been advocated as an alternative of carotid endarterectomy, and it doesn't matter if you use a vein or a PTFE graft. The result are quite durable. (mumbling) showing this in 198 consecutive cases

that the patency, primary patency rate was 97.9% in 10 years, so is quite a durable procedure. Nowadays we are treating carotid lesion with stinting, and the stinting has been also advocated as a complementary treatment, but not for a bail out, but immediately after a completion study where it

was unsatisfactory. Gore hybrid graft has been introduced in the market five years ago, and it was the natural evolution of the vortec technique that (mumbling) published a few years before, and it's a technique of a non-suture anastomosis.

And this basically a heparin-bounded bypass with the Nitinol section then expand. At King's we are very busy at the center, but we did 40 bypass for bail out procedure. The technique with the Gore hybrid graft is quite stressful where the constrained natural stint is inserted

inside internal carotid artery. It's got the same size of a (mumbling) shunt, and then the plumbing line is pulled, and than anastomosis is done. The proximal anastomosis is performed in the usual fashion with six (mumbling), and the (mumbling) was reimplanted

selectively. This one is what look like in the real life the patient with the personal degradation, the carotid hybrid bypass inserted and the external carotid artery were implanted. Initially we very, very enthusiastic, so we did the first cases with excellent result.

In total since November 19, 2014 we perform 19 procedure. All the patient would follow up with duplex scan and the CT angiogram post operation. During the follow up four cases block. The last two were really the two very high degree stenosis. And the common denominator was that all the patients

stop one of the dual anti-platelet treatment. They were stenosis wise around 40%, but only 13% the significant one. This one is one of the patient that developed significant stenosis after two years, and you can see in the typical position at the end of the stint.

This one is another patient who develop a quite high stenosis at proximal end. Our patency rate is much lower than the one report by Rico. So in conclusion, ladies and gentlemen, the carotid endarterectomy remain still the gold standard,

and (mumbling) carotid is usually an afterthought. Carotid bypass is a durable procedure. It should be in the repertoire of every vascular surgeon undertaking carotid endarterectomy. Gore hybrid was a promising technology because unfortunate it's been just not produced by Gore anymore,

and unfortunately it carried quite high rate of restenosis that probably we should start to treat it in the future. Thank you very much for your attention.

- You already heard about different devices which can finish the treatment of acute DVT in the lab and I would like to add one of the devices which is quite widespread in Europe. And share the first study on this device. This is called the Aspirex device. So what is the objective?

Post traumatic syndrome after proximal DVT, I think that's clear. 25% of the patient are at risk for developing post traumatic syndrome. I think that is clear and some of these patient even expect severe post traumatic syndrome.

We already saw this ATTRACT trial outcome and we learned that especially patient with Iliofemoral DVT might benefit from treatment, invasive treatment of Iliofemoral DVT but of course, we need to know that is catheter-directed thrombolysis causes issues

and therefore our way should be to go away from thrombolytic therapy to a pure mechanical thrombectomy approach. This is a typical case example of a patient, 20 year old female patient who came to the emergency room with that leg on the left side in the morning,

back pain in the evening and this is clear that it is a descending Iliofemoral DVT in that patient caused by May-Thurner syndrome. So, with modern devices like this Aspirex, mechanical thrombectomy device, the 10 French device is able to aspirate up to 130 millimeter,

ml per minute of clots. You see that this can be effectively treated and then stinted within the May-Thurner syndrome within one session approach. So, but, what is clear of course that we need to get data

for these modern Mechanical Thrombectomy devices and therefore, we conducted clinical follow-up study to evaluate safety and efficiency of that Aspirex Mechanical Thrombectomy device. This device is based on the Archimedic principle which you can see here it comes with six up

to 10 French systems and with that you are able, as I already showed to sac 130ml of thrombus per minute. So these are the study details I want to show you. We treated 50 psychs, 56 patients with acute, subacute and acute on chronic which means up to 3 months of symptoms patients with Iliofermal DVT.

We performed IVIS on all these patients. We found May-Thurner syndrome in at least half of these patients as a reason for the Iliofermal DVT. You see the patient demographics. Some of the patients had even malignancy condition. A lot of patients were on oral contraceptives.

Here are the clinical symptoms within our cohort. Most of the patients came with swelling and rest pain. The rVCSS at the beginning was 4.5 within this cohort. Most of the traumatic lesions were on the left side involving even the profunda and the common femoral vein in this cohort.

You see here the excess which we used for treating these Iliofermal DVT, we used in the main part of the cohort, the left popliteal vein access or left femoral vein access. 84% were treated with 10 French system, the Aspirex device. As I mentioned we used IVIS

to analyze underlying pathologies. We found in most of the patients underlying pathologies and this explains why we implanted stents in 100% of the patients. You see the treatment duration which was in mean 94 minutes within this treatment cohort.

These are the patency analysis within one year. You see patency at 12 months, 87% percent in these patients, which we could follow up after 12 months. Here you see the Post-thrombotic syndrome analysis after 12 months so only low PTS

and some kind of moderate PTS were seen in these patients. There were no severe Post-thrombotic syndrome. Most of the patients just had a little bit of swelling after that procedure. Of course, it's important to mention safety and those end points.

There were just some small punctures associated, site being complicationS. Of course re-hospitalization is a severe adverse event which you can see here. But there were of course no bleeding events in this cohort. And to follow up

on this much more multicentric perspective trial, we just started a multicenter trial on this and we'll follow up patients up to five years within this just initiated multicenter registry. And I think we can show some preliminary data next year. Thank you very much.

- Thank you, Dr. Ascher. Great to be part of this session this morning. These are my disclosures. The risk factors for chronic ischemia of the hand are similar to those for chronic ischemia of the lower extremity with the added risk factors of vasculitides, scleroderma,

other connective tissue disorders, Buerger's disease, and prior trauma. Also, hemodialysis access accounts for a exacerbating factor in approximately 80% of patients that we treat in our center with chronic hand ischemia. On the right is a algorithm from a recent meta-analysis

from the plastic surgery literature, and what's interesting to note is that, although sympathectomy, open surgical bypass, and venous arterialization were all recommended for patients who were refractory to best medical therapy, endovascular therapy is conspicuously absent

from this algorithm, so I just want to take you through this morning and submit that endovascular therapy does have a role in these patients with digit loss, intractable pain or delayed healing after digit resection. Physical examination is similar to that of lower extremity, with the added brachial finger pressures,

and then of course MRA and CTA can be particularly helpful. The goal of endovascular therapy is similar with the angiosome concept to establish in-line flow to the superficial and deep palmar arches. You can use an existing hemodialysis access to gain access transvenously to get into the artery for therapy,

or an antegrade brachial, distal brachial puncture, enabling you treat all three vessels. Additionally, you can use a retrograde radial approach, which allows you to treat both the radial artery, which is typically the main player in these patients, or go up the radial and then back over

and down the ulnar artery. These patients have to be very well heparinized. You're also giving antispasmodic agents with calcium channel blockers and nitroglycerin. A four French sheath is preferable. You're using typically 014, occasionally 018 wires

with balloon diameters 2.3 to three millimeters most common and long balloon lengths as these patients harbor long and tandem stenoses. Here's an example of a patient with intractable hand pain. Initial angiogram both radial and ulnar artery occlusions. We've gone down and wired the radial artery,

performed a long segment angioplasty, done the same to the ulnar artery, and then in doing so reestablished in-line flow with relief of this patient's hand pain. Here's a patient with a non-healing index finger ulcer that's already had

the distal phalanx resected and is going to lose the rest of the finger, so we've gone in via a brachial approach here and with long segment angioplasty to the radial ulnar arteries, we've obtained this flow to the hand

and preserved the digit. Another patient, a diabetic, middle finger ulcer. I think you're getting the theme here. Wiring the vessels distally, long segment radial and ulnar artery angioplasty, and reestablishing an in-line flow to the hand.

Just by way of an extreme example, here's a patient with a vascular malformation with a chronically occluded radial artery at its origin, but a distal, just proximal to the palmar arch distal radial artery reconstitution, so that served as a target for us to come in

as we could not engage the proximal radial artery, so in this patient we're able to come in from a retrograde direction and use the dedicated reentry device to gain reentry and reestablish in-line flow to this patient with intractable hand pain and digit ulcer from the loss of in-line flow to the hand.

And this patient now, two years out, remains patent. Our outcomes at the University of Pennsylvania, typically these have been steal symptoms and/or ulceration and high rates of technical success. Clinical success, 70% with long rates of primary patency comparing very favorably

to the relatively sparse literature in this area. In summary, endovascular therapy can achieve high rates of technical, more importantly, clinical success with low rates of major complications, durable primary patency, and wound healing achieved in the majority of these patients.

Thank you.

- Mr. Chairman, ladies and gentlemen, good morning. I'd like to thank Dr. Veith for the opportunity to present at this great meeting. I have nothing to disclose. Since Dr. DeBakey published the first paper 60 years ago, the surgical importance of deep femoral artery has been well investigated and documented.

It can be used as a reliable inflow for low extremity bypass in certain circumstances. To revascularize the disease, the deep femoral artery can improve rest pain, prevent or delay the amputation, and help to heal amputation stump.

So, in this slide, the group patient that they used deep femoral artery as a inflow for infrainguinal bypass. And 10-year limb salvage was achieved in over 90% of patients. So, different techniques and configurations

of deep femoral artery angioplasty have been well described, and we've been using this in a daily basis. So, there's really not much new to discuss about this. Next couple minutes, I'd like to focus on endovascular invention 'cause I lot I think is still unclear.

Dr. Bath did a systemic review, which included 20 articles. Nearly total 900 limbs were treated with balloon angioplasty with or without the stenting. At two years, the primary patency was greater than 70%. And as you can see here, limb salvage at two years, close to, or is over 98% with very low re-intervention rate.

So, those great outcomes was based on combined common femoral and deep femoral intervention. So what about isolated deep femoral artery percutaneous intervention? Does that work or not? So, this study include 15 patient

who were high risk to have open surgery, underwent isolated percutaneous deep femoral artery intervention. As you can see, at three years, limb salvage was greater than 95%. The study also showed isolated percutaneous transluminal

angioplasty of deep femoral artery can convert ischemic rest pain to claudication. It can also help heal the stump wound to prevent hip disarticulation. Here's one of my patient. As you can see, tes-tee-lee-shun with near

or total occlusion of proximal deep femoral artery presented with extreme low-extremity rest pain. We did a balloon angioplasty. And her ABI was increased from 0.8 to 0.53, and rest pain disappeared. Another patient transferred from outside the facility

was not healing stump wound on the left side with significant disease as you can see based on the angiogram. We did a hybrid procedure including stenting of the iliac artery and the open angioplasty of common femoral artery and the profunda femoral artery.

Significantly improved the perfusion to the stump and healed wound. The indications for isolated or combined deep femoral artery revascularization. For those patient presented with disabling claudication or rest pain with a proximal

or treatable deep femoral artery stenosis greater than 50% if their SFA or femoral popliteal artery disease is unsuitable for open or endovascular treatment, they're a high risk for open surgery. And had the previous history of multiple groin exploration, groin wound complications with seroma or a fungal infection

or had a muscle flap coverage, et cetera. And that this patient should go to have intervascular intervention. Or patient had a failed femoral pop or femoral-distal bypass like this patient had, and we should treat this patient.

So in summary, open profundaplasty remains the gold standard treatment. Isolated endovascular deep femoral artery intervention is sufficient for rest pain. May not be good enough for major wound healing, but it will help heal the amputation stump

to prevent hip disarticulation. Thank you for much for your attention.

- So I'm just going to talk a little bit about what's new in our practice with regard to first rib resection. In particular, we've instituted the use of a 30 degree laparoscopic camera at times to better visualize the structures. I will give you a little bit of a update

about our results and then I'll address very briefly some controversies. Dr. Gelbart and Chan from Hong Kong and UCLA have proposed and popularized the use of a 30 degree laparoscopic camera for a better visualization of the structures

and I'll show you some of those pictures. From 2007 on, we've done 125 of these procedures. We always do venography first including intervascular intervention to open up the vein, and then a transaxillary first rib resection, and only do post-operative venography if the vein reclots.

So this is a 19 year old woman who's case I'm going to use to illustrate our approach. She developed acute onset left arm swelling, duplex and venogram demonstrated a collusion of the subclavian axillary veins. Percutaneous mechanical thrombectomy

and then balloon angioplasty were performed with persistent narrowing at the thoracic outlet. So a day later, she was taken to the operating room, a small incision made in the axilla, we air interiorly to avoid injury to the long thoracic nerve.

As soon as you dissect down to the chest wall, you can identify and protect the vein very easily. I start with electrocautery on the peripheral margin of the rib, and use that to start both digital and Matson elevator dissection of the periosteum pleura

off the first rib, and then get around the anterior scalene muscle under direct visualization with a right angle and you can see that the vein and the artery are identified and easily protected. Here's the 30 degree laparoscopic image

of getting around the anterior scalene muscle and performing the electrocautery and you can see the pulsatile vein up here anterior and superficial to the anterior scalene muscle. Here is a right angle around the first rib to make sure there are no structures

including the pleura still attached to it. I always divide, or try to divide, the posterior aspect of the rib first because I feel like then I can manipulate the ribs superiorly and inferiorly, and get the rib shears more anterior for the anterior cut

because that's most important for decompressing the vein. Again, here's the 30 degree laparoscopic view of the rib shears performing first the posterior cut, there and then the anterior cut here. The portion of rib is removed, and you can see both the artery and the vein

are identified and you can confirm that their decompressed. We insufflate with water or saline, and then perform valsalva to make sure that they're hasn't been any pneumothorax, and then after putting a drain in,

I actually also turn the patient supine before extirpating them to make sure that there isn't a pneumothorax on chest x-ray. You can see the Jackson-Pratt drain in the left axilla. One month later, duplex shows a patent vein. So we've had pretty good success with this approach.

23 patients have requires post operative reintervention, but no operative venous reconstruction or bypass has been performed, and 123 out of 125 axillosubclavian veins have been patent by duplex at last follow-up. A brief comment on controversies,

first of all, the surgical approach we continue to believe that a transaxillary approach is cosmetically preferable and just as effective as a paraclavicular or anterior approach, and we have started being more cautious

about postoperative anticoagulation. So we've had three patients in that series that had to go back to the operating room for washout of hematoma, one patient who actually needed a VATS to treat a hemathorax,

and so in recent times we've been more cautious. In fact 39 patients have been discharged only with oral antiplatelet therapy without any plan for definitive therapeutic anticoagulation and those patients have all done very well. Obviously that's contraindicated in some cases

of a preoperative PE, or hematology insistence, or documented hypercoagulability and we've also kind of included that, the incidence of postop thrombosis of the vein requiring reintervention, but a lot of patients we think can be discharged

on just antiplatelets. So again, our approach to this is a transaxillary first rib resection after a venogram and a vascular intervention. We think this cosmetically advantageous. Surgical venous reconstruction has not been required

in any case, and we've incorporated the use of a 30 degree laparoscopic camera for better intraoperative visualization, thanks.

- Oh, thank you, dear colleague, that's a very long title. This is my disclosure, this. We are all very efficient for treating all those patient, but sometimes, especially on the very long recanalization, we may fail to reenter into the very precise distal landing zone,

and that's when we fail, please do not panic. That's how to perfectly reenter into the distal lumen and I think that's the retrograde approach. Distal puncturing is very useful and very efficient, very safe technique to increase the long recanalization. And it needs to be consider very, very rapidly,

very quickly, usually in my daily practice this is in less than 10 minutes after failure to rentry into the distal zone. Thus, we have many site of puncture, of distal punctures, and what is also very important,

this is to have the very dedicated devices. Usually I use a 16-gauge needle, and also this is quite always a sheathless technique. Thus, let me share with you this case and answer to all the question. This is a case with an long occlusion

of on the right side of the SFA. This I've used, as maybe many of us, the crossover technique. The crossing was really not a problem. It was quite difficult, we have used many guidewires

and also many support catheter but we crossed finally to the distal zone, but it was impossible to reenter very precisely and very safely into the distal SFA into the P1 popliteal artery. That's once again no hesitation.

We do a direct puncture into the P1 popliteal artery zone. The patient have been always prepared before, and, as you may see, this is an 16-gauge needle. That's after, once again, we inserts the guidewires and note this is a sheathless technique and directly thereafter the support catheter

and this is so very important to inject to be sure that we are very precise for the punctures. After this is a two team work, one from below and one from above,

and this is the mix between two 3D dissection and the main goal, this is to connect one dissection with the other and also thereafter is to insert one guidewire into the other support catheters to have at the end only one guidewires. And after we use a telepherique technique

by pulling the balloon for the predilitation of the first opening of the SFA by pulling on the guidewires that is exiting on the proximal popliteal arteries. And only at the end you may exchange the way of the guidewires to move it distally

and thereafter you push on the balloon that is inflated during at least three minutes for the distal sealing. And this is the initial control that is quite, very, very bad. By the way, I'm answer

to the other question, "When is it important to stent?" And especially I know that we are into a less metal left behind era, but it's a very, very good indication for sustaining these recanalized long lesion,

especially flow limiting dissection and residual stenosis. And this is what we have made for obtaining this by the end very, very good result. Thus, in conclusion, for the long recanalization, especially if it's very, very calcified,

experience is definitely required. And we needs to be familiar with a lot of guidewire and support catheter of a very good portfolio. The retrograde access that made, this is very safe, and that may increase technically the success rate and the stenting, I mean the scaffolding is quite

always necessary on the long recanalization. And keep in mind that the patience is really the key of all those procedures. Thank you.

- Thank you and thanks again Frank for the kind invitation to be here another year. So there's several anatomic considerations for complex aortic repair. I wanted to choose between fenestrations or branches,

both with regards to that phenotype and the mating stent and we'll go into those. There are limitations to total endovascular approaches such as visceral anatomy, severe angulations,

and renal issues, as well as shaggy aortas where endo solutions are less favorable. This paper out of the Mayo Clinic showing that about 20% of the cases of thoracodynia aneurysms

non-suitable due to renal issues alone, and if we look at the subset that are then suitable, the anatomy of the renal arteries in this case obviously differs so they might be more or less suitable for branches

versus fenestration and the aneurysm extent proximally impacts that renal angle. So when do we use branches and when do we use fenestrations? Well, overall, it seems to be, to most people,

that branches are easier to use. They're easier to orient. There's more room for error. There's much more branch overlap securing those mating stents. But a branch device does require

more aortic coverage than a fenestrated equivalent. So if we extrapolate that to juxtarenal or pararenal repair a branched device will allow for much more proximal coverage

than in a fenestrated device which has, in this series from Dr. Chuter's group, shows that there is significant incidence of lower extremity weakness if you use an all-branch approach. And this was, of course, not biased

due to Crawford extent because the graft always looks the same. So does a target vessel anatomy and branch phenotype matter in of itself? Well of course, as we've discussed, the different anatomic situations

impact which type of branch or fenestration you use. Again going back to Tim Chuter's paper, and Tim who only used branches for all of the anatomical situations, there was a significant incidence of renal branch occlusion

during follow up in these cases. And this has been reproduced. This is from the Munster group showing that tortuosity is a significant factor, a predictive factor, for renal branch occlusion

after branched endovascular repair, and then repeated from Mario Stella's group showing that upward-facing renal arteries have immediate technical problems when using branches, and if you have the combination of downward and then upward facing

the long term outcome is impaired if you use a branched approach. And we know for the renals that using a fenestrated phenotype seems to improve the outcomes, and this has been shown in multiple trials

where fenestrations for renals do better than branches. So then moving away from the phenotype to the mating stent. Does the type of mating stent matter? In branch repairs we looked at this

from these five major European centers in about 500 patients to see if the type of mating stent used for branch phenotype grafts mattered. It was very difficult to evaluate and you can see in this rather busy graph

that there was a combination used of self-expanding and balloon expandable covered stents in these situations. And in fact almost 2/3 of the patients had combinations in their grafts, so combining balloon expandable covered stents

with self expanding stents, and vice versa, making these analyses very very difficult. But what we could replicate, of course, was the earlier findings that the event rates with using branches for celiac and SMA were very low,

whereas they were significant for left renal arteries and if you saw the last session then in similar situations after open repair, although this includes not only occlusions but re-interventions of course.

And we know when we use fenestrations that where we have wall contact that using covered stents is generally better than using bare stents which we started out with but the type of covered stent

also seems to matter and this might be due to the stiffness of the stent or how far it protrudes into the target vessel. There is a multitude of new bridging stents available for BEVAR and FEVAR: Covera, Viabahn, VBX, and Bentley plus,

and they all seem to have better flexibility, better profile, and better radial force so they're easier to use, but there's no long-term data evaluating these devices. The technical success rate is already quite high for all of these.

So this is a summary. We've talked using branches versus fenestration and often a combination to design the device to the specific patient anatomy is the best. So in summary,

always use covered stents even when you do fenestrated grafts. At present, mix and match seems to be beneficial both with regards to the phenotype and the mating stent. Short term results seem to be good.

Technical results good and reproducible but long term results are lacking and there is very limited comparative data. Thank you. (audience applauding)

- Thank you Dr. Albaramum, it's a real pleasure to be here and I thank you for being here this early. I have no disclosures. So when everything else fails, we need to convert to open surgery, most of the times this leads to partial endograft removal,

complete removal clearly for infection, and then proximal control and distal control, which is typical in vascular surgery. Here's a 73 year old patient who two years after EVAR had an aneurism growth with what was thought

to be a type II endoleak, had coiling of the infermius mesenteric artery, but the aneurism continued to grow. So he was converted and what we find here is a type III endoleak from sutures in the endograft.

So, this patient had explantations, so it is my preference to have the nordic control with an endovascular technique through the graft where the graft gets punctured and then we put a 16 French Sheath, then we can put a aortic balloon.

And this avoids having to dissect the suprarenal aorta, particularly in devices that have super renal fixation. You can use a fogarty balloon or you can use the pruitt ballon, the advantage of the pruitt balloon is that it's over the wire.

So here's where we removed the device and in spite of the fact that we tried to collapse the super renal stent, you end up with an aortic endarterectomy and a renal endarterectomy which is not a desirable situation.

So, in this instance, it's not what we intend to do is we cut the super renal stent with wire cutters and then removed the struts individually. Here's the completion and preservation of iliac limbs, it's pretty much the norm in all of these cases,

unless they have, they're not well incorporated, it's a lot easier. It's not easy to control these iliac arteries from the inflammatory process that follows the placement of the endograft.

So here's another case where we think we're dealing with a type II endoleak, we do whatever it does for a type II endoleak and you can see here this is a pretty significant endoleak with enlargement of the aneurism.

So this patient gets converted and what's interesting is again, you see a suture hole, and in this case what we did is we just closed the suture hole, 'cause in my mind,

it would be simple to try and realign that graft if the endoleak persisted or recurred, as opposed to trying to remove the entire device. Here's the follow up on that patient, and this patient has remained without an endoleak, and the aneurism we resected

part of the sack, and the aneurism has remained collapsed. So here's another patient who's four years status post EVAR, two years after IMA coiling and what's interesting is when you do delayed,

because the aneurism sacks started to increase, we did delayed use and you see this blush here, and in this cases we know before converting the patient we would reline the graft thinking, that if it's a type III endoleak we can resolve it that way

otherwise then the patient would need conversion. So, how do we avoid the proximal aortic endarterectomy? We'll leave part of the proximal portion of the graft, you can transect the graft. A lot of these grafts can be clamped together with the aorta

and then you do a single anastomosis incorporating the graft and the aorta for the proximal anastomosis. Now here's a patient, 87 years old, had an EVAR,

the aneurism grew from 6 cm to 8.8 cm, he had coil embolization, translumbar injection of glue, we re-lined the endograft and the aneurism kept enlarging. So basically what we find here is a very large type II endoleak,

we actually just clip the vessel and then resected the sack and closed it, did not remove the device. So sometimes you can just preserve the entire device and just take care of the endoleak. Now when we have infection,

then we have to remove the entire device, and one alternative is to use extra-anatomic revascularization. Our preference however is to use cryo-preserved homograft with wide debridement of the infected area. These grafts are relatively easy to remove,

'cause they're not incorporated. On the proximal side you can see that there's a aortic clamp ready to go here, and then we're going to slide it out while we clamp the graft immediately, clamp the aorta immediately after removal.

And here's the reconstruction. Excuse me. For an endograft-duodenal fistula here's a patient that has typical findings, then on endoscopy you can see a little bit of the endograft, and then on an opergy I series

you actually see extravasation from the duodenal. In this case we have the aorta ready to be clamped, you can see the umbilical tape here, and then take down the fistula, and then once the fistula's down

you got to repair the duodenal with an omental patch, and then a cryopreserved reconstruction. Here's a TEVAR conversion, a patient with a contained ruptured mycotic aneurysm, we put an endovascular graft initially, Now in this patient we do the soraconomy

and the other thing we do is, we do circulatory support. I prefer to use ECMO, in this instances we put a very long canula into the right atrium, which you're anesthesiologist can confirm

with transassof forgeoligico. And then we use ECMO for circulatory support. The other thing we're doing now is we're putting antibiotic beads, with specific antibiotic's for the organism that has been cultured.

Here's another case where a very long endograft was removed and in this case, we put the device offline, away from the infected field and then we filled the field with antibiotic beads. So we've done 47 conversions,

12 of them were acute, 35 were chronic, and what's important is the mortality for acute conversion is significant. And at this point the, we avoid acute conversions,

most of those were in the early experience. Thank you.

- Thank you very much, so my disclosures, I'm one of the co-PIs for national registry for ANARI. And clearly venous clot is different, requires different solutions for the arterial system. So this is a device that was built ground up to work in the venous system. And here's a case presentation of a 53 year old male,

with a history of spondylolisthesis had a lumbar inner body fusion, he had an anterior approach and corpectomy with application of an inner body cage. And you can see these devices here. And notably he had application of local bone graft and bone powder

and this is part of what happened to this patient. About seven days later he came in with significant left leg swelling and venous duplex showed clot right here, and this extended all the way down to the tibial vessels. And if you look at the CT

you can see extravasation of that bone powder and material obstructing the left iliac vein. And had severe leg swelling so the orthopedic people didn't want us to use TPA in this patient so we considered a mechanical solution. And so at this day and age I think goals of intervention

should be to maximize clot removal of course and minimize bleeding risk and reduce the treatment or infusion time and go to single session therapy whenever possible. Our ICUs are full all the time and so putting a lytic patient in there

reduces our ability to get other patients in. (mouse clicks So this is the ClotTriever thrombectomy device. It has a sheath that is a 13 French sheath and they're developing a 16 French, that opens up with a funnel

after it's inserted into the poplitiel. So the funnel is in the lower femoral vein and this helps funnel clot in when it's pulled down. The catheter has this coring element that abuts the vein wall and carves the thrombus off in a collecting bag

that extends up above to allow the thrombus to go into the bag as you pull it down. So you access the popliteal vein, cross the thrombosed segments with standard techniques and you need to then put an exchange length wire up into the SVC

or even out into the subclavian vein for stability. And then the catheter's inserted above the clot and is gradually pulled down, sort of milking that stuff off of the wall and into the bag that is then taken down to the funnel and out of the leg.

So this is the patient we had, we had thrombus in the femoral and up into the IVC. Extensive, you can see the hardware here. And it was very obstructed right at that segment where it was, had the bone material pushing on the vein it was quite difficult to get through there

but finally we did and we ballooned that to open a channel up large enough to accommodate ClotTriever catheter. We then did multiple passes and we extracted a large amount of thrombus. Some looking like typically acute stuff

and then some more dense material that may have been a few days worth of build up on the wall there. We then stinted with an 18 by 90 across the obstructed segment and this was our completion run.

It's not perfect but it looks like a pretty good channel going through. This is the hardware not obstruction at that level. Hospital course, the patient had significant improvement in their swelling by post-op day one. Was discharged on compression and anti-coagulation.

He returned about two months ago for his three month follow-up and really had very minimal symptoms in the left leg. Venous duplex showed that the left common femoral was partially compressible but did have phasic flow and the stent appeared to be open through it's course.

So of course this is an anecdote, this is early in the experience with this catheter. There have been numerous improvements made to ease the use of it and do it in fewer steps. And so we're starting a ClotTriever outcomes registry

to enroll up to 500 patients to begin to define outcomes with this device. It does offer the promise of single session therapy without lytic administration and we'll see how it performs and which patients it works best in through the registry.

Thank you very much.

- Thank you, chairman. Good afternoon, ladies and gentlemen. I've not this conflict of interest on this topic. So, discussion about double-layer stent has been mainly focused about the incidence of new lesions, chemical lesions after the stenting, and because there are still some issue

about the plaque prolapse, this has still has been reduced in a comparison to conventional stent that's still present. We started our study two years ago to evaluate on two different set of population of a patient who underwent stent, stenting,

to see if there is any different between the result of two stents, Cguard from Inspire, and Roadsaver from Terumo in term of ischemic lesion and if there is a relationship between the activity of the plaque evaluated with the MRI

and new ischemic lesion after the procedure. So, the population was aware of similar what we found, and that there's no difference between the two stent we have had, and new ischemic lesions is, there's a 38%, for a total amount of 34 lesions,

and ipsilateral in 82% of cases. The most part of the lesion appeared at the 24 hours, for the 88.2% of cases, while only the 12% of cases, we have a control at our lesion. According to the DWI, we have seen that

the DWI of the plaque is positive, or there is an activity of the plaque. There's a higher risk of embolization with a high likelihood or a risk of 6.25%. But, in the end, what we learned in the beginning, what there have known,

there's no difference in the treatment of the carotid stenosis with this device, and the plaque activity, when positive at the DWI MR, is a predictive for a higher risk of new ischemic lesions at 24 hours. But, what we are still missing in terms of information,

where something about the patency of the stents at mid-term follow-up, and the destiny of external carotid artery at mid-term follow-up. Alright, we have to say we have an occlusion transitory, occlusion of the semi-carotid artery

immediately after the deployment of the Terumo stent. The ECA recovery completely. But in, what we want to check, what could happen, following the patient in the next year. So, we perform a duplicate ultrasound, at six, at 12, and 24 months after the procedure,

in order to re-evaluate the in-stent restenosis and then, if there was a new external carotid artery stenosis or occlusion. We have made this evaluation according to the criteria of grading of carotid in-stent restenosis proposed on Stroke by professors attache group.

And what we found that we are an incidence of in-stent restenosis of 10%, of five on 50 patient, one at six month and four at one year. And we are 4% of external carotid artery new stenosis. All in two patient, only in the Roadsaver group.

We are three in-stent restenosis for Roadsaver, two in-stent restenosis for Cguard, and external new stenosis only in the Roadsaver group. And this is a case of Roadsaver stent in-stent restenosis of 60% at one year. Two year follow-up,

so we compare what's happening for Cguard and Roadsaver. We see that no relation have been found with the plaque activity or the device. If we check our result, even if this is a small series, we both reported in the literature for the conventional stent,

we've seen that in our personal series, with the 10% of in-stent restenosis, that it's consistent with what's reported for conventional CAS. And the same we found when we compared our result with the result reported for CAS with conventional stent.

So in our personal series, we had not external carotid artery occlusion. We have 4% instance, and for stenosis while with conventional CAS, occlusion of external carotid artery appear in 3.8% of cases.

So, what can we add to our experience now in the incidence, if, I'm sorry, if confirmed by larger count of patient and longer study? We can say that the incidence of in-stent restenosis for this new double-layer stent and the stenosis on the external carotid artery,

if not the different for all, with what reported for conventional stent. Thank you.

- So I'd like to thank Dr. Ascher, Dr. Sidawy, Dr. Veith, and the organizers for allowing us to present some data. We have no disclosures. The cephalic arch is defined as two centimeters from the confluence of the cephalic vein to either the auxiliary/subclavian vein. Stenosis in this area occurs about 39%

in brachiocephalic fistulas and about 2% in radiocephalic fistulas. Several pre-existing diseases can lead to the stenosis. High flows have been documented to lead to the stenosis. Acute angles. And also there is a valve within the area.

They're generally short, focal in nature, and they're associated with a high rate of thrombosis after intervention. They have been associated with turbulent flow. Associated with pre-existing thickening.

If you do anatomic analysis, about 20% of all the cephalic veins will have that. This tight anatomical angle linked to the muscle that surrounds it associated with this one particular peculiar valve, about three millimeters from the confluence.

And it's interesting, it's common in non-diabetics. Predictors if you are looking for it, other than ultrasound which may not find it, is calcium-phosphate product, platelet count that's high, and access flow.

If one looks at interventions that have commonly been reported, one will find that both angioplasty and stenting of this area has a relatively low primary patency with no really discrimination between using just the balloon or stent.

The cumulative patency is higher, but really again, deployment of an angioplasty balloon or deployment of a stent makes really no significant difference. This has been associated with residual stenosis

greater than 30% as one reason it fails, and also the presence of diabetes. And so there is this sort of conundrum where it's present in more non-diabetics, but yet diabetics have more of a problem. This has led to people looking to other alternatives,

including stent grafts. And in this particular paper, they did not look at primary stent grafting for a cephalic arch stenosis, but mainly treating the recurrent stenosis. And you can see clearly that the top line in the graph,

the stent graft has a superior outcome. And this is from their paper, showing as all good paper figures should show, a perfect outcome for the intervention. Another paper looked at a randomized trial in this area and also found that stent grafts,

at least in the short period of time, just given the numbers at risk in this study, which was out after months, also had a significant change in the patency. And in their own words, they changed their practice and now stent graft

rather than use either angioplasty or bare-metal stents. I will tell you that cutting balloons have been used. And I will tell you that drug-eluting balloons have been used. The data is too small and inconclusive to make a difference. We chose a different view.

We asked a simple question. Whether or not these stenoses could be best treated with angioplasty, bare-metal stenting, or two other adjuncts that are certainly related, which is either a transposition or a bypass.

And what we found is that the surgical results definitely give greater long-term patency and greater functional results. And you can see that whether you choose either a transposition or a bypass, you will get superior primary results.

And you will also get superior secondary results. And this is gladly also associated with less recurrent interventions in the ongoing period. So in conclusion, cephalic arch remains a significant cause of brachiocephalic AV malfunction.

Angioplasty, across the literature, has poor outcomes. Stent grafting offers the best outcomes rather than bare-metal stenting. We have insufficient data with other modalities, drug-eluting stents, drug-eluting balloons,

cutting balloons. In the correct patient, surgical options will offer superior long-term results and functional results. And thus, in the good, well-selected patient, surgical interventions should be considered

earlier in this treatment rather than moving ahead with angioplasty stent and then stent graft. Thank you so much.

- Thank you Professor Veith. Thank you for giving me the opportunity to present on behalf of my chief the results of the IRONGUARD 2 study. A study on the use of the C-Guard mesh covered stent in carotid artery stenting. The IRONGUARD 1 study performed in Italy,

enrolled 200 patients to the technical success of 100%. No major cardiovascular event. Those good results were maintained at one year followup, because we had no major neurologic adverse event, no stent thrombosis, and no external carotid occlusion. This is why we decided to continue to collect data

on this experience on the use of C-Guard stent in a new registry called the IRONGUARD 2. And up to August 2018, we recruited 342 patients in 15 Italian centers. Demographic of patients were a common demographic of at-risk carotid patients.

And 50 out of 342 patients were symptomatic, with 36 carotid with TIA and 14 with minor stroke. Stenosis percentage mean was 84%, and the high-risk carotid plaque composition was observed in 28% of patients, and respectively, the majority of patients presented

this homogenous composition. All aortic arch morphologies were enrolled into the study, as you can see here. And one third of enrolled patients presented significant supra-aortic vessel tortuosity. So this was no commerce registry.

Almost in all cases a transfemoral approach was chosen, while also brachial and transcervical approach were reported. And the Embolic Protection Device was used in 99.7% of patients, with a proximal occlusion device in 50 patients.

Pre-dilatation was used in 89 patients, and looking at results at 24 hours we reported five TIAs and one minor stroke, with a combined incidence rate of 1.75%. We had no myocardial infection, and no death. But we had two external carotid occlusion.

At one month, we had data available on 255 patients, with two additional neurological events, one more TIA and one more minor stroke, but we had no stent thrombosis. At one month, the cumulative results rate were a minor stroke rate of 0.58%,

and the TIA rate of 1.72%, with a cumulative neurological event rate of 2.33%. At one year, results were available on 57 patients, with one new major event, it was a myocardial infarction. And unfortunately, we had two deaths, one from suicide. To conclude, this is an ongoing trial with ongoing analysis,

and so we are still recruiting patients. I want to thank on behalf of my chief all the collaborators of this registry. I want to invite you to join us next May in Rome, thank you.

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