Early and Midterm Experience With the Absorb Everolimus-Eluting Bioresorbable Vascular Scaffold in Asian Patients With Chronic Limb-Threatening Ischemia: One-Year Clinical and Imaging Outcomes From the DISAPEAR Registry

2020 ◽  
Vol 27 (4) ◽  
pp. 616-622
Author(s):  
Steven Kum ◽  
Jetty Ipema ◽  
Derek Ho Chun-yin ◽  
Darryl M. Lim ◽  
Yih Kai Tan ◽  
...  

Purpose: To report an experience with the Absorb bioresorbable vascular scaffold (BVS) in an Asian cohort with chronic limb-threatening ischemia (CLTI) from the DISAPEAR ( Drug Impregnated Bioresorbable Stent in Asian Population Extremity Arterial Revascularization) registry. Materials and Methods: A retrospective analysis was conducted of 41 patients (median age 64 years; 23 men) with CLTI owing to >50% de novo infrapopliteal lesions (n=53) treated with the Absorb BVS between August 2012 and June 2017. The majority of patients (37, 90%) had diabetes, 24 (59%) had ischemic heart disease, and 39 (95%) had Rutherford category 5/6 ischemia with tissue loss. The mean lesion length was 22.7±17.2 mm; 10 (24%) lesions were severely calcified. Assessments included technical success, primary patency, freedom from clinically-driven target lesion revascularization (CD-TLR), amputation-free survival, limb salvage, complete wound healing, resolution of rest pain, and resolution of CLTI without TLR at 6 and 12 months after the index intervention. Results: Overall, 69 scaffolds were implanted in the 53 lesions, with 100% technical success. There were no deaths within 30 days of the index procedure. The primary patency rates at 6 and 12 months were 95% and 86%, respectively. The corresponding rates of freedom from CD-TLR were 98% and 93%, respectively. Freedom from major amputation was 98% at both time points, and amputation-free survival was 93% and 85% at 6 and 12 months after the index procedure. Wound healing occurred in 31 patients (79%) with Rutherford category 5/6 ischemia by the end of 12 months. Conclusion: The Absorb BVS demonstrated good 1-year patency and clinical outcomes in CLTI patients with complex infrapopliteal disease.

2018 ◽  
Vol 25 (6) ◽  
pp. 694-701 ◽  
Author(s):  
Ramon L. Varcoe ◽  
Shannon D. Thomas ◽  
Andrew F. Lennox

Purpose: To investigate the midterm performance of the everolimus-eluting Absorb bioresorbable vascular scaffold (BVS) for the treatment of symptomatic infrapopliteal atherosclerotic disease. Methods: A single-center study prospectively enrolled 48 symptomatic patients (mean age 82.1±8.0 years; 27 men) between September 2013 and February 2018 to evaluate the Absorb everolimus-eluting BVS system in distal popliteal and tibial lesions. Mean lesion length was 20.1±10.8 mm. Following predilation, up to 2 BVS were implanted in target lesions in 55 limbs. Clinical and duplex ultrasound follow-up was performed at 1, 3, 6, 12, 24, 36, and 48 months to determine 30-day morbidity and midterm Kaplan-Meier estimates of binary restenosis, clinically-driven target lesion revascularization (CD-TLR), amputation, and mortality. Results: Seventy-one scaffolds were implanted to treat 61 lesions. Technical success was achieved in all patients, with no amputation, death, or target limb bypass surgery within 30 days of the index procedure. There was 1 early thrombotic occlusion of 2 BVS in a previously anticoagulated patient not given antiplatelet medication after the procedure. During a mean follow-up of 24.0±15.3 months, 11 (23%) patients died; the remaining 37 were available for follow-up. Binary restenosis (50%–75%) was detected in 6 (8%) scaffolds. Primary patency estimates at 12, 24, and 36 months were 92.2%, 90.3%, and 81.1%; freedom from CD-TLR estimates were 97.2%, 97.2%, and 87.3% at the same time points. No late scaffold thrombosis has been observed. The majority of the 55 limbs (51, 93%) were clinically improved; 4 (7%) were unchanged. Thirty-six (92%) of 39 limbs treated for tissue loss achieved complete wound healing, with no major amputation (limb salvage 100%). Conclusion: Midterm follow-up demonstrates excellent safety, patency, and freedom from CD-TLR rates using the Absorb bioresorbable vascular scaffold below the knee.


2021 ◽  
pp. 1358863X2098789
Author(s):  
Steven Kum ◽  
Jetty Ipema ◽  
Eline Huizing ◽  
Yih K Tan ◽  
Darryl Lim ◽  
...  

The fluoropolymer-coated, paclitaxel-eluting Eluvia stent has shown promising results for the endovascular treatment of femoropopliteal artery lesions in patients with claudication. The aim of the current study was to evaluate efficacy and safety outcomes of the Eluvia stent for the treatment of long femoropopliteal lesions in Asian patients. This is a single-center, retrospective study. The primary endpoint was primary patency at 1 year. Secondary outcomes were 30-days complication rate, technical success, 1-year freedom from clinically driven target lesion revascularization (CD-TLR), limb salvage, survival, amputation-free survival (AFS), wound healing, and clinical improvement. A total of 64 patients with 67 femoropopliteal lesions were included; 78% suffered from diabetes and 84% had chronic limb-threatening ischemia (CLTI). Of those with ischemic wounds, 79% did not have run-off to the foot. Mean lesion length was 193 ± 128 mm and 52% were severely calcified. Primary patency at 1 year was 84% in the overall cohort and 91% in patients with complete lesion coverage with the Eluvia stent. Technical success was achieved in 100% of the cases and 30-day complications occurred in six patients. Twelve-month freedom from CD-TLR, limb salvage, survival, and AFS were 92%, 93%, 85%, and 80%, respectively. In 80% of patients, complete wound healing was experienced and 84% had clinical improvement after 1 year. The Eluvia stent showed promising 12-month patency and clinical results for femoropopliteal treatment in this CLTI-dominant patient population with severely calcified, long lesions. Patient numbers were, however, small; larger trials are required to validate these findings. Aneurysmal change seen in some cases also needs further investigation.


2017 ◽  
Vol 51 (2) ◽  
pp. 60-66 ◽  
Author(s):  
Alessia Giaquinta ◽  
Ardita Vincenzo ◽  
Ester De Marco ◽  
Massimiliano Veroux ◽  
Pierfrancesco Veroux

Background: Critical limb ischemia (CLI), despite revascularization, may result in minor or major amputations with devastating psychological effects and a negative impact on patient survival. Randomized clinical trials demonstrated that drug-eluting stents improve 1-year primary patency and decrease target lesion revascularization, compared to standard angioplasty and bare-metal stents, in patients with short occlusive below-the-knee lesions. Objectives: This prospective clinical study was designed to evaluate if one straight-line flow revascularization to the foot, using Xience-Prime Everolimus-Eluting Stent (EES), is an effective treatment of patients in Rutherford-Becker category 4 to 5 with distal popliteal and proximal tibial arteries long occlusive lesions up to 10 cm. Methods: All patients with angiographic documented segment P3 of popliteal artery and proximal tibial arteries stenosis >70%, and lesion length between 20 mm and 100 mm, meeting the inclusion criteria, were included in the Etna Registry. The end points assessed were 1- and 3-year primary patency, major amputation-free survival, target lesion revascularization, and wound healing rates. Results: Between June 2011 and April 2014, 122 patients were included in the study, with mean lesion length of 52.7 mm (range: 20-100 mm). The 1- and 3-year primary patency rates were 88.9% and 80.1%, respectively. The survival, major amputation-free survival, and target lesion revascularization rates were 88.1%, 93%, and 91.5% at 1-year and 70.4%, 89.3%, and 85.1% at 3-year follow-up, respectively. Primary patency influenced major amputation rate, which was 60% in patients with no target artery patency versus 5.4% in patients with patency ( P = .022). At 1-year follow-up, 78 (88.6%) of 88 patients improved 1 or more of their Rutherford-Becker category, and 48 (80%) of 69 patients had wound healing. Conclusions: The results of our study suggest that a conservative approach, with EES, seems feasible in selected patients with CLI and infrapopliteal artery occlusive disease.


Vascular ◽  
2020 ◽  
pp. 170853812095494
Author(s):  
AbdulRahman Dia ◽  
Joseph M Venturini ◽  
Rohan J Kalathiya ◽  
Stephanie Besser ◽  
Jeremy Raider Estrada ◽  
...  

Objectives To assess the safety, efficacy, and durability of the Absorb bioresorbable vascular scaffold in predominantly complex, infra-popliteal lesions for the management of chronic limb ischemia at two-year clinical follow-up. Bioresorbable vascular scaffold are biodegradable scaffolds that provide short-term vascular support before undergoing intravascular degradation. A recent trial reported excellent 36-month vessel patency rates in simple infrapopliteal arterial lesions treated with Absorb bioresorbable vascular scaffold. Methods This single-center, retrospective study evaluated the use of the Absorb bioresorbable vascular scaffold (everolimus impregnated poly-L-lactic scaffold) in patients with infra-popliteal peripheral arterial disease (PAD) with respect to safety (thrombosis and TIMI bleeding), technical success, and freedom from clinically driven target vessel failure at 24 months. Results 31 patients (51.6% male) with a median age of 67 years with predominantly advanced infra-popliteal disease were treated with 49 bioresorbable vascular scaffold in 41 vessels. The mean stenosis was 94% (80–100), with 49% of lesions being chronic thrombotic occlusions. No scaffold thrombosis or peri-procedural bleeding was observed. Procedural success was achieved in all patients; 93.5% of patients experienced freedom from clinically driven target vessel failure at 24 months, driven by one revascularization and one amputation. Primary patency was 96.7% at 12 months and 87.1% at 24 months. All patients were alive at 12 and 24 months. Conclusions At 24 months, our study found that patients with predominantly advanced infra-popliteal PAD who were treated with Absorb bioresorbable vascular scaffold reported improved clinical status and a low and durable rate of clinically driven target vessel failure extending out to 24 months.


2019 ◽  
Vol 27 (1) ◽  
pp. 20-30 ◽  
Author(s):  
Vlad-Adrian Alexandrescu ◽  
Sophie Brochier ◽  
Augustin Limgba ◽  
Severine Balthazar ◽  
Hafid Khelifa ◽  
...  

Purpose: To assess the clinical efficacy of endovascular angiosome-oriented wound-targeted revascularization (WTR) vs indirect (wound-indifferent) revascularization (IR) in diabetic patients with neuroischemic foot ulcers. Materials and Methods: Between April 2009 and July 2017, 167 diabetic patients (mean age 72.8 years; 137 men) with chronic limb-threatening ischemia (Rutherford category 5) and foot wounds (Wagner 2–4) in 194 limbs were prospectively registered and scheduled for primary infragenicular endovascular treatment. Specific angiosome source artery reperfusion sustained by patent foot arches or arterial-arterial connections was attempted initially. If this approach failed, topographic revascularization via available collaterals (WTRc) and IR were sequentially attempted. Results: Reperfusion was successful in 176 (91%) of 194 limbs (113 with WTR, 28 with WTRc, and 35 with IR); the global angiosome-oriented technical success (WTR and WTRc) was 73% (141/194). The mean follow-up was 10.9±0.7 months (range 3–12.5). Over 1 year, 102 (58%) of the 176 successfully treated limbs experienced wound healing [79/113 (70%) in the WTR group, 15/28 (54%) in the WTRc group, and 7/35 (20%) in the IR group; p=0.011]. The mean time to healing was 6.8±0.4 months in the WTR group, 7.9±0.6 months in the WTRc group, and 9.8±0.7 months in the IR group (p=0.001). Relapses were noted in 18 (16%) WTR limbs, 5 (18%) WTRc limbs, and 6 (17%) IR limbs. Comparison between WTR and IR and WTRc vs IR showed improved cicatrization in the angiosome-oriented groups (p<0.05). Major adverse limb events (MALE) and limb salvage were different between WTR and WTRc and between WTR and IR groups (p<0.05), while WTRc vs IR was not. Amputation-free survival was not influenced by the revascularization strategy (p=0.093). Conclusion: Wound healing in diabetic patients with chronic limb-threatening ischemia appeared to be improved by intentional wound-targeted revascularization, but no uniform benefit concerning MALE or limb preservation was observed. IR still represents an alternative for limb salvage in cases in which angiosome-guided revascularization fails.


2017 ◽  
Vol 25 (1) ◽  
pp. 92-99 ◽  
Author(s):  
Konstantinos Stavroulakis ◽  
Arne Schwindt ◽  
Giovanni Torsello ◽  
Efthymios Beropoulis ◽  
Arne Stachmann ◽  
...  

Purpose: To report an experience using directional atherectomy (DA) with antirestenotic therapy (DAART) in the form of drug-coated balloon (DCB) angioplasty vs DCB angioplasty alone in common femoral artery (CFA) occlusive lesions. Methods: A retrospective review was conducted of 47 consecutive patients (mean age 71 years; 26 men) treated between October 2011 and July 2016 using either DCB angioplasty alone (n=26) or DAART (n=21) for CFA lesions. The majority of patients had lifestyle-limiting claudication (14 DCB and 15 DAART). Mean lesion length (39±14 mm DCB and 34±16 mm DAART) and vessel calcification (17/26 DCB and 11/21 DAART) were comparable between the groups. There were 4 chronic total occlusions, all in the DAART group. The main outcome measure was primary patency. Key secondary outcomes were technical success, secondary patency, and freedom from clinically-driven target lesion revascularization (TLR). Results: Technical success rates were 89% following DCB angioplasty and 95% for DAART (p=0.41). The 88% 12-month primary patency and 89% freedom from TLR for DAART were higher than the 68% and 75% estimates following DCB angioplasty alone, but neither difference was statistically significant. However, the secondary patency estimate at 12 months was significantly higher in the DAART group (100% vs 81% for DCB, p=0.03). Bailout stenting (1 DCB vs 1 DAART), vessel perforation (1 DCB vs 0 DAART), access site complications (4 DCB vs 3 DAART), and distal embolization (0 DCB vs 1 DAART) were comparable, whereas DCB angioplasty had more non-flow-limiting dissections (8 vs 1 for DAART, p=0.02). Conclusion: Preparation of the atherosclerotic CFA with directional atherectomy was not associated with statistically significantly higher primary patency or freedom from TLR compared to DCB angioplasty alone at 12 months. Nonetheless, both modalities had promising outcomes in a primarily surgically treated vascular territory.


2021 ◽  
pp. 152660282110074
Author(s):  
Tjun Yip Tang ◽  
Charyl Yap ◽  
Shereen Xue Yun Soon ◽  
Sze Ling Chan ◽  
QingWei Shaun Lee ◽  
...  

Purpose: The performance of sirolimus-coated devices has not been studied in patients with chronic limb-threatening ischemia patients. PRESTIGE aims to investigate the 6-month efficacy and safety profile of the Selution Sustained Limus Release (SLR) sirolimus-eluting balloon for treatment of TASC II C and D tibial occlusive lesions in patients with CLTI. Materials and Methods: PRESTIGE is a pilot prospective, nonrandomized, single-arm, multi-investigator, single-center clinical study. Endpoints were adverse event-free survival at 1 month, technical success rate, primary tibial patency at 6 months, limb salvage success, target lesion revascularization (TLR), and amputation free survival (AFS). Results: A total of 25 patients were included. There were 17 (68.0%) males; mean age, 63.7±9.73 years. CLTI severity was based on the Rutherford scale (R5=25/25; 100.0%). Significant comorbidities included diabetes mellitus (n=22; 88.0%) and end-stage renal failure (n=11; 44.0%). A total of 33 atherosclerotic lesions were treated (TASC II D=15 (45.5%)). Mean lesion length treated was 191±111 mm. Technical success was 100%. Primary tibial patency at 6 months was 22/27 (81.5%) and freedom from clinically driven TLR was 25/30 (83.3%). AFS was 21/25 (84.0%; 3 deaths and 1 major lower extremity amputation). Mean Rutherford score improved from 5.00 at baseline to 1.14±2.10 (p<0.05) at 6 months. There was a wound healing rate of 13/22 (59.1%) and 17/21 (81.0%) at 3 and 6 months respectively. Conclusions: Selution SLR drug-eluting balloon is a safe and efficacious modality in treating complex tibial arterial occlusive lesions in what is an otherwise frail cohort of CLTI patients, with a high prevalence of diabetes and end-stage renal failure. Technical and clinical success rates are high and 6-month target lesion patency and AFS are more than satisfactory.


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