Publications by authors named "Thomas Zeller"

286 Publications

Mortality Following Treatment with Paclitaxel-coated Devices in Real World - Correlation to Total Life-time Dosage?

J Vasc Interv Radiol 2021 Sep 2. Epub 2021 Sep 2.

Kardiologie und Angiologie II, Universitäts-Herzzentrum Freiburg-Bad Krozingen, Bad Krozingen, Germany.

Purpose: To evaluate the all-cause mortality after treatment with paclitaxel-coated devices depending on the paclitaxel exposure in real world practice.

Materials And Methods: A retrospective mortality analysis of patients with at least 3-year follow-up was performed. Patients were categorized in terciles according to the received paclitaxel dosage during index and every following intervention. Mortality incidence was compared to a paclitaxel naive control group.

Results: Two thousand three hundred seventy-six patients were treated with drug-coated devices and 980 with uncoated devices. The overall all-cause mortality rate at mean follow-up of 46.27±24.71 months was 29.2% (n=696) for the paclitaxel group and 49.4% (n=484) for the paclitaxel naive control group. The mortality rate between the groups according to the initial paclitaxel exposure was not significantly different (p=0.205). In comparison to the group of surviving patients the total life-time paclitaxel dosage was lower in the group of patients who died (p<0.001).

Conclusion: In this real-world retrospective analysis, the long-term mortality was not correlated with the paclitaxel exposure during the index procedure. Regarding the total paclitaxel exposure there was a lower mortality in the highest tercile of paclitaxel exposure.
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http://dx.doi.org/10.1016/j.jvir.2021.05.034DOI Listing
September 2021

Contralateral Stenosis and Echolucent Plaque Morphology are Associated with Elevated Stroke Risk in Patients Treated with Asymptomatic Carotid Artery Stenosis within a Controlled Clinical Trial (SPACE-2).

J Stroke Cerebrovasc Dis 2021 Sep 24;30(9):105940. Epub 2021 Jul 24.

Department of Neurology, University Hospital of Heidelberg, Heidelberg, Germany. Electronic address:

Background: Asymptomatic carotid artery stenosis (ACS) has a low risk of stroke. To achieve an advantage over noninterventional best medical treatment (BMT), carotid endarterectomy (CEA) or carotid artery stenting (CAS) must be performed with the lowest possible risk of stroke. Therefore, an analysis of risk-elevating factors is essential. Grade of ipsilateral and contralateral stenosis as well as plaque morphology are known risk factors in ACS.

Methods: The randomized, controlled, multicenter SPACE-2 trial had to be stopped prematurely after recruiting 513 patients. 203 patients were randomized to CEA, 197 to CAS, and 113 to BMT. Within one year, risk factors such as grade of stenosis and plaque morphology were analyzed.

Results: Grade of contralateral stenosis (GCS) was higher in patients with any stroke (50% vs. 20%; p=0.012). Echolucent plaque morphology was associated with any stroke on the day of intervention (OR 5.23; p=0.041). In the periprocedural period, any stroke was correlated with GCS in the CEA group (70% vs. 20%; p=0.026) and with echolucent plaque morphology in the CAS group (6% vs. 1%; p=0.048). In multivariate analysis, occlusion of the contralateral carotid artery (CCO) was associated with risk of any stroke (OR 7.00; p=0.006), without heterogeneity between CEA and CAS.

Conclusion: In patients with asymptomatic carotid artery stenosis, GCS, CCO, as well as echolucent plaque morphology were associated with a higher risk of cerebrovascular events. The risk of stroke in the periprocedural period was increased by GCS in CEA and by echolucent plaque in CAS. Due to small sample size, results must be interpreted carefully.
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http://dx.doi.org/10.1016/j.jstrokecerebrovasdis.2021.105940DOI Listing
September 2021

The prospective GermanVasc cohort study.

Vasa 2021 Jul 19. Epub 2021 Jul 19.

University Medical Center Hamburg-Eppendorf, Hamburg, Germany.

Previous observational studies reported a wide variation and possible room for improvement in the treatment of patients suffering from symptomatic peripheral artery disease (PAD). Yet, systematic assessment of everyday clinical practice is lacking. A General Data Protection Regulation (GDPR) compliant registry was developed and used to collect comprehensive data on clinical treatment and outcomes regarding PAD in Germany. Here, we report baseline characteristics of patients prospectively enrolled until the end of 2020. The GermanVasc registry study is a prospective longitudinal multicentre cohort study. Between 1 May 2018 and 31 December 2020, invasive endovascular, open-surgical, and hybrid revascularisations of patients suffering from chronic symptomatic PAD were prospectively included after explicit informed consent (NCT03098290). For ensuring high quality of the data, we performed comprehensive risk-based and random-sample external and internal validation. In total, 5608 patients from 31 study centres were included (34% females, median 69 years). On-site monitoring visits were performed at least once in all centres. The proportion of chronic limb-threatening ischaemia was 30% and 13% were emergent admissions. 55% exhibited a previous revascularisation. Endovascular techniques made 69% among all documented invasive procedures (n=6449). Thirty-five percent were classified as patients with severe systemic disease, and 3% exhibited a constant threat to life according to the American Society of Anaesthesiologists classification. The risk profile comprised of 75% former or current smokers, 36% diabetes mellitus, and in 30% a current ischemic heart disease was present. At discharge, 93% of the patients received antiplatelets and 77% received statins. The GermanVasc registry study provides insights into real-world practice of treatment and outcomes of 5,608 patients with symptomatic PAD in Germany. The cohort covers a broader range of disease severity and types of interventions than usually found in trials. In future studies, comparative outcomes will be analysed in more detail.
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http://dx.doi.org/10.1024/0301-1526/a000966DOI Listing
July 2021

Intravascular Lithotripsy for Peripheral Artery Calcification: 30-Day Outcomes From the Randomized Disrupt PAD III Trial.

JACC Cardiovasc Interv 2021 Jun;14(12):1352-1361

Division of Cardiology, Main Line Health, Wynnewood, Pennsylvania, USA. Electronic address:

Objectives: The study sought to compare short-term outcomes in patients with femoropopliteal artery calcification receiving vessel preparation with intravascular lithotripsy (IVL) or percutaneous transluminal angioplasty (PTA) prior to drug-coated balloon (DCB) for symptomatic peripheral artery disease.

Background: Endovascular treatment of calcified peripheral artery lesions is associated with suboptimal vessel expansion and increased complication risk. Although initial results from single-arm studies with IVL have been reported, comparative evidence from randomized trials is lacking for most devices in the presence of heavy calcification.

Methods: The Disrupt PAD III (Shockwave Medical Peripheral Lithoplasty System Study for PAD) randomized trial enrolled patients with moderate or severe calcification in a femoropopliteal artery who underwent vessel preparation with IVL or PTA prior to DCB or stenting. The primary endpoint was core lab-adjudicated procedural success (residual stenosis ≤30% without flow-limiting dissection) prior to DCB or stenting.

Results: In patients receiving IVL (n = 153) or PTA (n = 153), procedural success was greater in the IVL group (65.8% vs. 50.4%; p = 0.01) and the percentage of lesions with residual stenosis ≤30% (66.4% vs. 51.9%; p = 0.02) was greater in the IVL group, while flow-limiting dissections occurred more frequently in the PTA group (1.4% vs. 6.8%; p = 0.03). Post-dilatation (5.2% vs. 17.0%; p = 0.001) and stent placement (4.6% vs. 18.3%; p < 0.001) were also greater in the PTA group. The rates of major adverse events (IVL: 0% vs. PTA: 1.3%; p = 0.16) and clinically driven target lesion revascularization (IVL: 0.7% vs. PTA: 0.7%; p = 1.0) at 30 days were comparable between groups.

Conclusions: IVL is an effective vessel preparation strategy that facilitates definitive endovascular treatment in calcified femoropopliteal arteries in patients with peripheral artery disease. (Shockwave Medical Peripheral Lithoplasty System Study for PAD [Disrupt PAD III]; NCT02923193).
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http://dx.doi.org/10.1016/j.jcin.2021.04.010DOI Listing
June 2021

Photoablative atherectomy followed by a paclitaxel-coated balloon to inhibit restenosis in instent femoro-popliteal obstructions (PHOTOPAC).

Vasa 2021 Sep 10;50(5):387-393. Epub 2021 Jun 10.

Departement Angiology, Medical University Clinic, Kantonsspital Aarau, Aargau, Switzerland.

To evaluate the safety and effectiveness of preparing instent femoropopliteal lesion with photoablative laser atherectomy or plain balloon angioplasty (POBA) prior to drug-coated balloon (DCB) angioplasty. The prospective, multicenter, randomized study enrolled patients with Rutherford-Becker-class (RBC) 1 to 5 and instent lesions located in superficial femoral artery and/or popliteal artery above the knee joint. Primary endpoint was target lesion percent stenosis at 1 year as determined by the angiographic core-laboratory. Secondary endpoints included procedural success, major adverse event rate, clinical improvement and improvement in ankle-brachial index (ABI), clinically-driven target lesion revascularization (CD-TLR), and primary patency rate at until 2-year follow-up. The study was terminated prior to the enrollment goal due to slow enrollment. Thirty patients were included in the laser plus DCB cohort and 31 patients in the control cohort. Primary endpoint was not significantly different (p=0.331). Procedural success was 83.3% and 87.1% for the laser plus DCB and the control cohort, respectively. Serious adverse events at 30 days and 1-year were not statistically different between the two cohorts. For the ABI, significant improvements were present at discharge as well as at the follow-up visits. This was also evident for the RBC at the follow-up visits. One- and two-year freedom from CD-TLR was 86.7% vs. 87.1%, and 63.6% vs. 72%, respectively. Duplex derived primary patency was 90% at 6-months, 65.5% at one year and 56.5% at two year for the laser cohort and 90.3%, 75.9% and 53.8% for the control cohort. Safety of instent photoablative laser atherectomy followed by DCB angioplasty is confirmed by this study. Due to the small sample size, no benefit over POBA as vessel preparation could be shown.
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http://dx.doi.org/10.1024/0301-1526/a000959DOI Listing
September 2021

Atherectomy and Drug-Coated Balloon Angioplasty for the Treatment of Long Infrapopliteal Lesions: A Randomized Controlled Trial.

Circ Cardiovasc Interv 2021 Jun 7;14(6):e010280. Epub 2021 Jun 7.

Universitäts-Herzzentrum Freiburg, Kardiologie und Angiologie II, Bad Krozingen, Germany (T.B., R.M., E.N., U.B., P.F., K.B., F.N., T.Z.).

[Figure: see text].
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http://dx.doi.org/10.1161/CIRCINTERVENTIONS.120.010280DOI Listing
June 2021

Directional atherectomy before paclitaxel coated balloon angioplasty in complex femoropopliteal disease: The VIVA REALITY study.

Catheter Cardiovasc Interv 2021 Sep 3;98(3):549-558. Epub 2021 Jun 3.

Department of Angiology, University Heart Center Freiburg-Bad Krozingen, Bad Krozingen, Germany.

Background: Drug coated balloon (DCB) angioplasty significantly reduces reintervention rates in patients with symptomatic femoropopliteal peripheral artery disease (PAD). However, stand-alone DCB use in long, severely calcified lesions is frequently associated with vessel recoil and/or high-grade dissections necessitating provisional stent implantation.

Objectives: Assess the safety and effectiveness of a vessel preparation strategy with directional atherectomy (DA) prior to DCB angioplasty in patients with symptomatic severely calcified femoropopliteal PAD.

Methods: REALITY (NCT02850107) prospectively enrolled subjects at 13 multinational centers with 8-36 cm femoropopliteal stenoses or occlusions with bilateral vessel wall calcification treated with DA prior to DCB angioplasty. The primary effectiveness endpoint was 12-month primary patency, and the primary safety endpoint was freedom from major adverse events through 30 days. Independent angiographic and duplex core laboratories assessed outcomes and a Clinical Events Committee adjudicated events.

Results: A total of 102 subjects were enrolled; one lesion was treated per subject. The mean lesion length was 17.9 ± 8.1 cm, 39.0% were chronic total occlusions (mean lesion length 22.6 ± 8.6 cm); 86.2% of lesions exhibited moderate to severe bilateral calcification. Provisional stents were implanted in 8.8% (9/102) of subjects. Twelve-month primary patency rate was 76.7% (66/86) and freedom from CD-TLR rate was 92.6% (87/94). No device or procedure related deaths and one index-limb major amputation were reported.

Conclusions: Plaque excision with DA in patients with symptomatic severely calcified femoropopliteal arterial disease prior to DCB angioplasty is a safe and effective treatment strategy with a low provisional stent rate.
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http://dx.doi.org/10.1002/ccd.29777DOI Listing
September 2021

1-Year Results From the RANGER II SFA Randomized Trial of the Ranger Drug-Coated Balloon.

JACC Cardiovasc Interv 2021 May;14(10):1123-1133

Department of Angiology, Universitäts-Herzzentrum Freiberg-Bad Krozingen, Bad Krozingen, Germany.

Objectives: This study sought to evaluate the safety and effectiveness of the Ranger drug-coated balloon (DCB) (paclitaxel dose density 2 μg/mm) for treating superficial femoral artery or proximal popliteal artery lesions.

Background: Paclitaxel-coated balloon treatment prevents reinterventions, but dose and coating characteristics differ among balloons and necessitate discrete confirmation of safety and effectiveness.

Methods: Patients with symptomatic lower limb ischemia (Rutherford classification 2 to 4) were randomized 3:1 to treatment with the Ranger DCB or standard percutaneous transluminal angioplasty (PTA). Twelve-month primary target lesion patency, freedom from major adverse events (i.e., target lesion revascularization, major amputations, death within 1 month of the index procedure), and patient outcomes were analyzed.

Results: Mean lesion length was 82.5 ± 48.9 mm for the Ranger DCB group (n = 278) and 79.9 ± 49.3 mm for the control group (n = 98). Ranger DCB was superior to PTA (82.9% [n = 194 of 234] vs. 66.3% [n = 57 of 86]) with observed 12-month primary patency rates yielding a difference of 16.6% (95% confidence interval: 5.5% to 27.7%; p = 0.0013). Noninferior freedom from major adverse events (94.1% [n = 241 of 256] vs. 83.5% [n = 76 of 91]) was demonstrated with a difference of 10.6% (95% confidence interval: 2.5% to 18.8%; noninferiority p < 0.0001). Primary patency rate curves showed significant separation by Kaplan-Meier analysis (log-rank p = 0.0005), with rates of 89.8% and 74.0% estimated at day 365 for the Ranger DCB and PTA cohorts, respectively.

Conclusions: The low-dose Ranger DCB demonstrated significantly better effectiveness than standard PTA through 1 year and a good safety profile. (Ranger™ Paclitaxel Coated Balloon vs Standard Balloon Angioplasty [RANGER II SFA]; NCT03064126).
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http://dx.doi.org/10.1016/j.jcin.2021.03.021DOI Listing
May 2021

Twenty-Four-Month Outcomes of Drug-Coated Balloon in Diabetic Patients in the BIOLUX P-III Registry: A Subgroup Analysis.

Ann Vasc Surg 2021 Aug 5;75:237-252. Epub 2021 Apr 5.

Department of Diagnostic and Interventional Radiology, Klinikum Rosenheim, Rosenheim, Germany.

Objectives: This study aims to assess the use of drug-coated balloon (DCB) in a large patient population under real-world conditions and, specifically, analyse the impact of diabetes mellitus on long term outcomes following DCB utilisation.

Methods: BIOLUX P-III is a prospective, international, multicentre, registry that was conducted at 41 centres. The present study is a 24-month subgroup analysis of patients with diabetes mellitus having infrainguinal lesions treated with the Passeo-18 Lux DCB. The primary endpoints were freedom from major adverse events (MAEs) within 6 months of intervention and freedom from clinically driven target lesion revascularisation (CD-TLR) within 12 months of intervention.

Results: Of the 882 patients in the registry, 418 had diabetes (516 lesions). Most diabetics had concomitant hypertension (88.8%) and hyperlipidaemia (70.3%). Insulin dependence was observed in 48.8% of diabetics. Moreover, smoking (62.2%) and chronic renal insufficiency (41.9%) were also found to be common in this cohort. Chronic limb threatening ischemia (Rutherford class ≥4) was present in 53.1% of all patients. 22.9% of lesions were infrapopliteal, while 22.5% of lesions were treated for in-stent restenosis. The mean target lesion length was 85.6 ± 73.2 mm, and 79.4% of lesions were calcified (of which 17.9% were heavily calcified). Overall, device success was 99.7%. Freedom from MAEs was 90.5% (95% confidence interval (95% CI): 87.2-93.0) at 6 months, 85.4% (95% CI: 81.5-88.6) at 12 months and 80% (95% CI: 75.5-83.8) at 24 months. Freedom from CD-TLR was 95.9% (95% CI: 93.8-97.4), 91.6% (95% CI: 88.7-93.8), and 87.1% (95% CI: 83.5-89.9) at 6, 12, and 24 months, respectively. All-cause mortality at 24 months in diabetics was 16.0% (95% CI: 12.6-20.2), and major target limb amputation was 6.1% (95% CI: 4.1-8.9), which was significantly higher than in non-diabetics (8.4% (95% CI: 6.0-11.6), P = 0.0005 and 1.2% (95% CI: 0.5-2.9), P <0.0001, respectively). At 24 months, 82.0% of patients had improved by ≥1 Rutherford class.

Conclusion: Treatment of a real-world diabetic patient population with the Passeo-18 Lux DCB resulted in high efficacy and low complication rates, despite the fact that diabetic patients usually suffer from a multitude of concomitant comorbidities.

Clinical Trial Registration: NCT02276313.
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http://dx.doi.org/10.1016/j.avsg.2021.02.050DOI Listing
August 2021

Modern multidisciplinary team approach is crucial in treatment for critical limb threatening ischemia.

J Cardiovasc Surg (Torino) 2021 Apr 26;62(2):124-129. Epub 2021 Jan 26.

Division of Interventional Radiology, Miami Cardiac and Vascular Institute, FIU Herbert Wertheim College of Medicine, Miami, FL, USA.

The aim of this study was to provide a brief overview of the history the multidisciplinary team approach, highlighting the benefit to the patient with critical limb threatening ischemia in relation to health care economics. Furthermore, we provided a description of the requisites and key components, showing how to build a multidisciplinary team.
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http://dx.doi.org/10.23736/S0021-9509.21.11725-2DOI Listing
April 2021

Treatment of Femoropopliteal Lesions With the BioMimics 3D Vascular Stent System: Two-Year Results From the MIMICS-2 Trial.

J Endovasc Ther 2021 Apr 17;28(2):236-245. Epub 2020 Dec 17.

Sheffield Vascular Institute, Northern General Hospital, Sheffield, UK.

Purpose: To report the safety and effectiveness outcomes through 2 years of the BioMimics 3D Vascular Stent System in the treatment of symptomatic patients with atherosclerotic femoropopliteal disease.

Materials And Methods: The tubular, nitinol BioMimics 3D stent, which was designed to impart a helical shape to the arterial segment, was implanted in 271 patients (mean age 68.4±9.5 years; 180 men) with de novo femoropopliteal lesions enrolled at 43 investigational sites [31 US (n=162), 6 German (n=78), and 6 Japanese (n=31)] in the prospective, single-arm MIMICS-2 investigational device exemption trial ( identifier NCT02400905) between June 2015 and October 2016. Mean lesion length was 81.2±38.4 mm, 30.0% of patients had total occlusions, and 45.9% had moderate to severe calcification. Primary safety and effectiveness endpoints were compared at 1 year with prespecified objective performance goals (OPGs) set by the VIVA Physicians organization. Outcomes through 2 years are reported.

Results: The primary effectiveness endpoint of 12-month primary stent patency was met by 182 of 249 patients (73.1%, 95% CI 67.3% to 78.2%), exceeding the OPG of 66%. The primary safety endpoint of 30-day freedom from major adverse events (MAEs) was met in 268 of 269 patients (99.6%, 95% CI 97.7% to 100%), exceeding the OPG of 88%. Kaplan-Meier estimates of freedom from loss of primary patency were 83.1% at 12 months and 70.2% at 24 months, freedom from MAEs estimates were 86.9% at 12 months and 79.2% at 24 months, and freedom from clinically-driven target lesion revascularization estimates were 88.0% at 12 months and 83.0% at 24 months. At 24 months, 88.2% of patients showed improvement of ≥1 Rutherford category; the ankle-brachial index was >0.9 for 64.4% vs 11.3% at baseline. There were no cases of stent fracture.

Conclusion: Through 24 months, the BioMimics 3D Vascular Stent System provided safe and effective treatment for femoropopliteal lesions in patients with symptomatic peripheral artery disease.
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http://dx.doi.org/10.1177/1526602820980419DOI Listing
April 2021

Provisional focal stenting of complex femoropopliteal lesions using the Multi-LOC multiple stent delivery system - 12-month results from the LOCOMOTIVE EXTENDED study.

Vasa 2021 Apr 26;50(3):209-216. Epub 2020 Nov 26.

First Department of Medicine, Faculty of Medicine, University Medical Centre Mannheim (UMM), University of Heidelberg, Mannheim, Germany.

: This study aimed to evaluate a Multiple Stent Delivery System for provisional focal stenting of the femoropopliteal artery. : The LOCOMOTIVE EXTENDED study (Multi- for flw liiting utcomes after plain old balloon angioplasty and/or drug-coated balloon reatment in the infrainguinal position with the object to implant multiple stent segments) is a prospective, single-arm, multicentre observational study. The Multi-LOC Multiple Stent Delivery System (B.Braun, Melsungen, Germany) was used for provisional focal stenting of the femoropopliteal artery. We enrolled 357 patients with 449 femoropopliteal lesions; all had flow-limiting dissections or recoil following angioplasty. Eligibility included Rutherford classification 2 to 5 with a de novo or non-stented restenotic femoropopliteal lesion undergoing plain balloon or drug-coated balloon angioplasty. The 6- and 12-month efficacy endpoints encompassed target lesion revascularisation and primary patency rates. : The mean patient age was 71 ± 10 years. The mean lesion length was 16.0 ± 9.7 cm; 44.5% were TASC II C/D lesions and 31.4% were chronic total occlusions. By operator choice, 45% of the patients underwent drug-coated balloon angioplasty. On average, 4.0 stents (each 13 mm long) were placed in each lesion, resulting in a scaffolding proportion of 56% of the total lesion length with a technical success rate of 98.3%. At 6 and 12 months, the freedom from clinically driven target lesion revascularisation was 95.5% and 88.7% and the primary patency rates were 88.7% and 82.3%, respectively. At 12 months, significant improvements were noted in Rutherford categories and ankle-brachial indices. In multiple regression analyses, both diabetes mellitus and no distal run-off vessel showed a trend toward worse TLR, while other factors such as DCB predilation or the lesion length were not predictive. : The LOCOMOTIVE EXTENDED study demonstrated the safety and efficacy of the Multi-LOC stent system for focal provisional stenting of complex femoropopliteal lesions.
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http://dx.doi.org/10.1024/0301-1526/a000927DOI Listing
April 2021

Stent-grafts are the best way to treat complex in-stent restenosis lesions in the superficial femoral artery: 24-month results from a multicenter randomized trial.

J Cardiovasc Surg (Torino) 2020 Oct;61(5):617-625

Flanders Medical Research Program, Dendermonde, Belgium.

Background: This clinical trial aims to evaluate the outcome (up to 24-months) of the treatment of in-stent restenotic or reoccluded lesions in the femoropopliteal arteries, by comparing the treatment of the GORE® VIABAHN® Endoprosthesis with PROPATEN Bioactive Surface (W. L. Gore & Associates, Flagstaff, AZ, USA) with a standard PTA treatment. The primary effectiveness endpoint of the study is the primary patency at 12 months, defined as no evidence of restenosis or occlusion within the originally treated lesion based on color-flow duplex ultrasound (PSVR≤2.5) and without target lesion revascularization (TLR) within 12 months. The primary safety endpoint is the proportion of subjects who experience serious device-related adverse events within 30 days postprocedure.

Methods: A total of 83 patients meeting inclusion and exclusion criteria have been enrolled in this prospective, randomized, multicenter, controlled study in 7 sites between June 2010 and February 2012. Patients with an in-stent restenosis lesion in the femoropopliteal region and a Rutherford classification from 2 to 5 could be enrolled. After screening, the patient was randomized to either treatment with the GORE® VIABAHN® Endoprosthesis with PROPATEN Bioactive Surface or treatment with a standard PTA balloon. After the index procedure, follow-up visits at 1 month, 6 months, 12 months and 24 months were required. A color flow Doppler ultrasound was performed on all follow-up visits and a quantitative vascular angiography at the 12-month follow-up visit.

Results: In the VIABAHN® group, 39 patients (74.4% male; mean age 67.69±9.77 years) were enrolled and in the PTA group, 44 patients (72.7% male; mean age 68.98±9.71 years) were enrolled, which is comparable for both treatment groups. In the VIABAHN® group, 34 (87.2%) patients presented with claudication (Rutherford 2 and 3) and 5 (12.8%) patients had critical limb ischemia (Rutherford 4 and 5). In the PTA group, 36 (81.8%) patients were claudicants (Rutherford 2 and 3) and 8 (18.2%) presented with critical limb ischemia (Rutherford 4 and 5). The 12-month primary patency rates were 74.8% for the VIABAHN® group and 28.0% for the PTA group (P<0.001). No patients were reported to have device-related serious adverse events within 30 days postprocedure. The primary patency rate for the 24-month follow-up was 58.40% in the Viabahn group and 11.60% in the PTA group (P<0.001).

Conclusions: The treatment of femoropopliteal in-stent restenosis with a VIABAHN® Endoprosthesis shows significantly better results than the treatment with a standard PTA balloon. This demonstrates that the use of the VIABAHN® Endoprosthesis is a very promising tool for the treatment of complex in-stent restenosis.
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http://dx.doi.org/10.23736/S0021-9509.20.11382-XDOI Listing
October 2020

Two-Year Efficacy and Safety Results from the IMPERIAL Randomized Study of the Eluvia Polymer-Coated Drug-Eluting Stent and the Zilver PTX Polymer-free Drug-Coated Stent.

Cardiovasc Intervent Radiol 2021 Mar 22;44(3):368-375. Epub 2020 Nov 22.

Lankenau Heart Institute, Wynnewood, PA, USA.

Purpose: To report additional endpoints, including 2-year primary patency, patient outcomes, and safety results, as well as the initial assessment of hypoechogenic halo from the IMPERIAL Randomized Controlled Trial (RCT).

Materials And Methods: IMPERIAL RCT is a prospective, randomized (2:1), multicenter study of patients with symptomatic femoropopliteal artery lesions (length 30-140 mm, Rutherford category 2-4) treated with the Eluvia paclitaxel-eluting nitinol stent or the Zilver PTX paclitaxel-coated stent. Two-year follow-up included patency, safety, and mortality assessments and core laboratory-reviewed B-mode ultrasound imaging to screen for hypoechogenic halo in the stented segment, and assess blood flow.

Results: At 24 months, all-cause mortality was 7.1% (21/295) for Eluvia and 8.3% (12/145) for Zilver PTX (P = 0.6649). The clinically driven target lesion revascularization rate was significantly less for patients treated with Eluvia vs Zilver PTX (12.7% vs 20.1%; P = 0.0495). The Kaplan-Meier estimate of primary patency at 24 months was 83.0% for Eluvia and 77.1% for Zilver PTX (log rank P = 0.1008). Transverse ultrasound imaging was implemented during the 24-month follow-up window and was evaluable for 27.5% (128/465) of patients. Hypoechogenic halo prevalence rates did not differ significantly between Eluvia and Zilver PTX study arms (33.7% [29/86] vs 21.4% [9/42]; P = 0.153). In no case was flow documented within the halo; no adverse events were associated with these ultrasound findings.

Conclusion: Two-year follow-up suggests a sustained advantage for Eluvia for avoiding target lesion revascularization. Initial hypoechogenic halo assessment showed no difference in prevalence between the study arms, no flow within the halo, and no associated adverse events.

Clinical Trial Registration: clinicaltrials.gov identifier NCT02574481. Date of registration: October 14, 2015.

Level Of Evidence: Level 1; randomized controlled trial.
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http://dx.doi.org/10.1007/s00270-020-02693-1DOI Listing
March 2021

Evaluation of mortality following paclitaxel drug-coated balloon angioplasty of femoropopliteal lesions in patients with ulcerations and gangrene - a single center experience.

Vasa 2021 Feb 29;50(2):132-138. Epub 2020 Oct 29.

Department of Cardiology and Angiology II, University Heart Center Freiburg-Bad Krozingen, Germany.

: A recent meta-analysis of randomized controlled trials suggested an increased long-term mortality risk following femoropopliteal angioplasty using paclitaxel coated devices. To assess the long-term mortality after paclitaxel drug-coated (DCB) and uncoated balloon angioplasty (POBA) of femoropopliteal lesions in patients with ulcerations and gangrene in real world practice. : A retrospective mortality analysis of patients with at least 3-year follow-up who underwent balloon based endovascular therapy of femoropopliteal lesions was performed. : Overall 624 patients with femoropopliteal lesions were included in this study. Of those, 197 patients were treated with POBA without crossover to a paclitaxel coated device during follow-up and 427 patients with DCB angioplasty. Mean follow-up time was 33.3 ± 25.4 months. Mortality incidence was 81.7% (95% confidence interval [95% CI]: 76.1-86.8) after POBA and 59.0% (95% CI: 54.6-63.9) after DCB (p < 0.001). Multivariate logistic regression analysis revealed type of treatment (POBA vs. DCB, (hazard ratio [HR]: 0.332, 95% CI: 0.215-0.514, p < 0.001), age per year (HR: 1.065, 95% CI: 1.046-1.087, p < 0.001), coronary heart disease (HR: 1.969, 95% CI: 1.323-2.930, p = 0.001), renal insufficiency (HR: 1.583, 95% CI: 1.079-2.323, p = 0.019), stroke (HR: 2.505, 95% CI: 1.431-4.384, p = 0.001) as predictors for all-cause mortality. In the subgroup excluding octogenarians, mortality predictors were type of treatment (HR: 0.463, 95% CI: 0.269-0.796, p = 0.005), age per year (HR: 1.035, 95% CI: 1.002-1.069, p = 0.038), coronary heart disease (HR: 2.082, 95% CI: 1.274-3.400, p = 0.003), stroke (HR: 2.203, 95% CI: 1.156-4.197, p = 0.016) and renal insufficiency (HR: 2.201, 95% CI: 1.357-3.571, p < 0.001). : This monocentric retrospective analysis showed no survival disadvantage for patients in Rutherford-Becker stage 5 after treatment with paclitaxel-coated balloons.
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http://dx.doi.org/10.1024/0301-1526/a000910DOI Listing
February 2021

Paclitaxel-Coated Balloon Angioplasty for the Treatment of Infrainguinal Arteries: 24-Month Outcomes in the Full Cohort of BIOLUX P-III Global Registry.

Cardiovasc Intervent Radiol 2021 Feb 20;44(2):207-217. Epub 2020 Oct 20.

Division of Angiology, Department of Internal Medicine, Medical University Graz, Graz, Austria.

Purpose: After promising small randomized trials, the aim of BIOLUX P-III was to further investigate the safety and performance of the Passeo-18 lx drug-coated balloon in infrainguinal arteries under real-world conditions.

Methods: BIOLUX P-III is a global prospective single-arm study with follow-up at 6, 12 and 24 months. The primary safety endpoint was freedom from major adverse events (MAE) within 6 months. The primary performance endpoint was freedom from clinically driven target lesion revascularization (TLR) within 12 months.

Results: 877 patients/1084 lesions were enrolled. Diabetes mellitus was present in 47.7%, and 42.1% had critical limb ischemia (CLI). The mean lesion length was 89.0 mm with 76.1% of calcified lesions, and 24.9% occluded. At 24 months, freedom from MAE was 83.1% in the full cohort; 84.9% in the femoropopliteal population (592 patients, 691 lesions); 77.7% for long lesions (187 subjects/192 lesions); and 72.5% in the in-stent restenosis (ISR) subgroup (103 subjects/116 lesions). Twenty-four-month freedom from clinically driven TLR was 88.1% in the full cohort; 88.9% in the femoropopliteal population; 80.3% for the long lesions; and 78.4% for ISR. Twenty-four-month all-cause mortality was 12.0% in the full cohort, 10.2% in the femoropopliteal population, 14.8% for the long lesions and 12.0% for ISR. There was no device- or procedure-related death up to 24-month follow-up.

Conclusion: The BIOLUX P-III 24-month outcomes confirm the safety and performance of Passeo-18 lx in infrainguinal arteries in a large population treated under real-world conditions with low complication rates and good clinical outcomes (NCT02276313).
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http://dx.doi.org/10.1007/s00270-020-02663-7DOI Listing
http://www.ncbi.nlm.nih.gov/pmc/articles/PMC7806550PMC
February 2021

Heparin-Bonded Stent-Graft for the Treatment of TASC II C and D Femoropopliteal Lesions: 36-Month Results of the Viabahn 25 cm Trial.

J Endovasc Ther 2021 Apr 12;28(2):222-228. Epub 2020 Oct 12.

Department Angiology, Universitäts-Herzzentrum Freiburg-Bad Krozingen, Bad Krozingen, Germany.

Purpose: To evaluate the 36-month technical and clinical outcome after implantation of the 25-cm Viabahn endoprosthesis with Propaten bioactive surface in TransAtlantic Inter-Society Consensus II C and D lesions of the superficial femoral and proximal popliteal arteries.

Materials And Methods: This prospective, multicenter, single-arm trial (; identifier NCT01263665) enrolled 71 patients (mean age 66.7±8.3 years; 50 men) with lifestyle-limiting claudication or rest pain (Rutherford category 2-4) and long (>20-cm) lesions of the superficial femoral and proximal popliteal arteries. Primary endpoint was primary patency at 36 months. Secondary endpoints included primary assisted patency; secondary patency; freedom from target lesion revascularization (TLR); freedom from a composite of death, target vessel revascularization (TVR), and amputation; clinical success; and freedom from device fracture.

Results: Primary patency estimated by Kaplan-Meier analysis was 40.6% at 36 months. Primary assisted patency and secondary patency estimates were 53.0% and 96.9%, respectively. Within 36 months, 27 patients had to undergo a TLR. Twenty-five patients (35.2%) had a TVR. Freedom from the composite of death, TVR, and amputation endpoint was 44.5%. The estimate of the sustained clinical success with stable or improved Rutherford category was 58.5%. No stent fracture was detected during follow-up.

Conclusion: The primary patency rate without reintervention after treatment of long femoropopliteal lesions is low. However, secondary patency after implantation of a Viabahn endoprosthesis is high and seems to be superior to the use of other revascularization techniques, resulting in persistent clinical improvement.
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http://dx.doi.org/10.1177/1526602820965965DOI Listing
April 2021

Prediction Model for Freedom from TLR from a Multi-study Analysis of Long-Term Results with the Zilver PTX Drug-Eluting Peripheral Stent.

Cardiovasc Intervent Radiol 2021 Feb 6;44(2):196-206. Epub 2020 Oct 6.

Department of Medicine, Ohio Health/Riverside Methodist Hospital, Columbus, OH, USA.

Purpose: Develop a prediction model to determine the impact of patient and lesion factors on freedom from target lesion revascularization (ffTLR) for patients who are candidates for Zilver PTX drug-eluting stent (DES) treatment for femoropopliteal lesions.

Methods: Patient factors, lesion characteristics, and TLR results from five global studies were utilized for model development. Factors potentially associated with TLR (sex, age, diabetes, hypertension, hypercholesterolemia, renal disease, smoking status, Rutherford classification, lesion length, reference vessel diameter (RVD), popliteal involvement, total occlusion, calcification severity, prior interventions, and number of runoff vessels) were analyzed in a Cox proportional hazards model. Probability of ffTLR was generated for three example patient profiles via combinations of patient and lesion factors. TLR was defined as reintervention performed for ≥ 50% diameter stenosis after recurrent clinical symptoms.

Results: The model used records from 2227 patients. The median follow-up time was 23.9 months (range: 0.03-60.8). The Kaplan-Meier estimates for ffTLR were 90.5% through 1 year and 75.2% through 5 years. In a multivariate analysis, sex, age, Rutherford classification, lesion length, RVD, total occlusion, and prior interventions were significant factors. The example patient profiles have predicted 1-year ffTLRs of 97.4, 92.3, and 86.0% and 5-year predicted ffTLRs of 92.8, 79.5, and 64.8%. The prediction model is available as an interactive web-based tool ( https://cooksfa.z13.web.core.windows.net ).

Conclusions: This is the first prediction model that uses an extensive dataset to determine the impact of patient and lesion factors on ffTLR through 5 years and provides an interactive web-based tool for expected patient outcomes with the Zilver PTX DES.

Clinical Trial Registrations: Zilver PTX RCT unique identifier: NCT00120406; Zilver PTX single-arm study unique identifier: NCT01094678; Zilver PTX China study unique identifier: NCT02171962; Zilver PTX US post-approval study unique identifier: NCT01901289; Zilver PTX Japan post-market surveillance study unique identifier: NCT02254837.

Levels Of Evidence: Zilver PTX RCT: Level 2, randomized controlled trial; Single-arm study: Level 4, large case series; China study: Level 4, case series; US post-approval study: Level 4, case series Japan PMS study: Level 4, large case series.
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http://dx.doi.org/10.1007/s00270-020-02648-6DOI Listing
http://www.ncbi.nlm.nih.gov/pmc/articles/PMC7806559PMC
February 2021

Real-World Experience With a Paclitaxel-Coated Balloon in Critical Limb Ischemia: 24-Month Subgroup Outcomes of BIOLUX P-III.

JACC Cardiovasc Interv 2020 10 16;13(19):2289-2299. Epub 2020 Sep 16.

Department of Interventional Radiology, Klinikum Rosenheim, Rosenheim, Germany.

Objectives: The aim of the BIOLUX P-III (A Prospective, International, Multi-Centre, Post-Market All-Comers Registry to Assess the Clinical Performance of the Passeo-18 Lux Paclitaxel Releasing Balloon Catheter in Infrainguinal Arteries - III) registry was to collect real-world data on the Passeo-18 Lux paclitaxel-coated balloon.

Background: Critical limb ischemia (CLI) is a severe condition associated with high morbidity and mortality. Prospective data are needed to provide further insights on drug-eluting devices.

Methods: BIOLUX P-III is a prospective, post-market, all-comers registry assessing the safety and performance of the Passeo-18 Lux. Clinical information was collected at 6, 12, and 24 months. The authors report 24-month outcomes of the CLI subgroup with patients in Rutherford classes 4 to 6.

Results: The CLI subgroup included 328 patients with 422 lesions. Patients were 71.1 ± 10.5 years of age, and 61.0% had diabetes. Femoropopliteal lesions were present in 53.8% (n = 227), below-the-knee lesions were present in 27.0% (n = 114), and lesions were moderate or heavily calcified in 45.0% (n = 190). Major adverse events, defined as 30-day device- or procedure-related mortality, major target limb amputation, and clinically driven target lesion revascularization, occurred in 9.8% of patients through 6 months, in 14.9% through 12 months, and in 19.4% through 24 months. Clinically driven target lesion revascularization occurred in 4.4%, 8.5%, and 12.1%, major amputation in 4.9%, 5.2%, and 6.1%, and mortality in 8.1%, 11.1%, and 20.1%, respectively. Predictors of mortality were age ≥75 years and higher Trans-Atlantic Inter-Society Consensus Document on Management of Peripheral Arterial Disease class, and higher Rutherford class was associated with increased mortality and amputation rates.

Conclusions: In a large, multimorbid patient population with complex lesions and CLI, the safety and performance of the Passeo-18 Lux paclitaxel-coated balloon has been confirmed, with low rates of major amputation and target lesion revascularization.
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http://dx.doi.org/10.1016/j.jcin.2020.06.059DOI Listing
October 2020

Evaluation of mortality following paclitaxel drug-coated stent angioplasty of femoropopliteal lesions in real world.

Catheter Cardiovasc Interv 2020 11 15;96(6):1306-1314. Epub 2020 Sep 15.

From the Kardiologie und Angiologie II, Universitäts-Herzzentrum Freiburg-Bad Krozingen, Bad Krozingen, Germany.

Objectives: To evaluate the long-term mortality after paclitaxel-coated drug-eluting stent (DES) angioplasty and use of uncoated devices of femoropopliteal lesions in real world practice.

Background: A meta-analysis of randomized controlled trials reported an increased risk of long-term mortality after femoropopliteal angioplasty with paclitaxel-coated devices.

Methods: Retrospective mortality analysis of claudicants Rutherford-Becker class (RBC) 1-4 who underwent DES angioplasty or uncoated balloon or stent angioplasty of femoropopliteal lesions with a follow-up of 3-7 years.

Results: From 2010 to 2016 8,377 patients were treated with femoropopliteal lesions. This analysis included 599 patients. Three-hundred-three patients were treated with an uncoated device and 296 patients with a DES. The mean follow-up period was 51.80 ± 23.40 months (range 0-84). For the entire cohort mortality incidence was 32.3% after uncoated treatment and 22.6% after DES (p < .033). For the entire cohort multivariate logistic regression analysis revealed age (p < .001), diabetes mellitus (p = .010), renal insufficiency (p = .001) and RBC 4 (p < .001) as independent predictors for mortality. After propensity score matching mortality incidence was 32.5% after uncoated treatment and 24.1% after DES (p = .264). After propensity score matching, independent mortality predictors were age (p < .001), hyperlipidemia (p = .035), diabetes mellitus (p = .018) and RBC 4 (p < .001). Kaplan-Meier analysis showed that higher paclitaxel dosage was associated with lower mortality.

Conclusion: In real world, long-term mortality rate was lower after DES angioplasty than after treatment with uncoated devices. Mortality predictors were co-morbidities, risk factors, and disease severity.
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http://dx.doi.org/10.1002/ccd.29267DOI Listing
November 2020

Sex-Related Differences in the Long-Term Outcomes of Patients with Femoropopliteal Arterial Disease Treated with the IN.PACT Drug-Coated Balloon in the IN.PACT SFA Randomized Controlled Trial: A Post Hoc Analysis.

J Vasc Interv Radiol 2020 09;31(9):1410-1418.e10

St. Joseph Heart and Vascular Center, Orange, California.

Purpose: To evaluate sex-related disparities in long-term outcomes of patients with peripheral artery disease (PAD) treated with IN.PACT drug-coated balloon (DCB) or percutaneous transluminal angioplasty (PTA).

Materials And Methods: A post hoc analysis of the IN.PACT SFA trial was performed. Participants with Rutherford Clinical Classification 2-4 PAD and femoropopliteal artery lesions up to 18 cm long were randomly assigned to treatment with DCB (n = 220) or PTA (n = 111). Effectiveness outcomes were evaluated, including 36-month primary patency (freedom from binary restenosis and freedom from clinically driven [CD] target lesion revascularization [TLR]).

Results: In the DCB group, women were significantly older (69.4 y ± 9.9) than men (66.4 y ± 9.1; P = .025). Mean reference vessel diameter (RVD) was significantly smaller in women (4.4 mm ± 0.68) compared with men (4.8 mm ± 0.89, P < .001). Primary patency was 65.4% in women and 71.8% in men (P = .302). Freedom from CD-TLR was 81.1% in women and 86.4% in men (P = .285). Women treated with PTA were older (70.4 y ± 8.3) than men (66.9 y ± 9.5; P = .063). Mean RVD was significantly smaller in women (4.2 mm ± 0.77) compared with men (4.9 mm ± 0.77, P < .001). Primary patency was 42.3% in women and 46.7% in men (P = .551). Freedom from CD-TLR was 59.4% in women and 75.5% in men (P = .109). No significant differences were noted in safety and mortality outcomes.

Conclusions: In both groups, women were older and had smaller vessels. Particularly in the PTA group, women had worse clinical outcomes, though not reaching statistical significance. Further evaluation is necessary to understand the disparate nature of disease progression and outcomes following endovascular treatment in women compared with men.
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http://dx.doi.org/10.1016/j.jvir.2020.05.012DOI Listing
September 2020

Paclitaxel exposure: Long-term safety and effectiveness of a drug-coated balloon for claudication in pooled randomized trials.

Catheter Cardiovasc Interv 2020 11 24;96(5):1087-1099. Epub 2020 Aug 24.

Universitäts-Herzzentrum Freiburg-Bad Krozingen, Bad Krozingen, Germany.

Background: Paclitaxel drug-coated balloons (DCB) prevent recurrent claudication after angioplasty, yet data from randomized trials with incomplete follow-up have raised uncertainty regarding long-term mortality.

Objectives: To evaluate the effect of paclitaxel exposure on the long-term safety and efficacy of angioplasty of femoropopliteal artery lesions in the combined IN.PACT randomized trials.

Methods: The IN.PACT randomized trials (SFA, N = 331 and Japan, N = 100) each compared the DCB with standard percutaneous transluminal angioplasty (PTA) for claudication, and consented patients for 5 and 3 years, respectively. To address long-term safety, sites were requested to obtain vital status follow-up. In the pooled, updated data set, we examined the association between randomized treatment and mortality by cumulative incidence and hazard ratio (HR), and freedom from clinically driven target lesion revascularization (CD-TLR). Multivariable Cox regression with adjustment for baseline characteristics was used to evaluate the dose effect. Causes of death were adjudicated by a blinded clinical events committee that included oncologists with paclitaxel expertise.

Results: The rate of long-term vital status ascertainment increased from 81% to 97% for DCB and from 85% to 97% for PTA in the IN.PACT SFA trial. The cumulative incidence of mortality was 14.7% DCB versus 12.0% PTA at 5 years, HR 1.39, log-rank p = .286. Paclitaxel dose (mg) was not an independent predictor of mortality (HR 1.02, p = .381), but was an independent predictor of reduced risk of CD-TLR (HR 0.79; p < .001). Causes of death did not differ by treatment arm.

Conclusions: In pooled randomized trial data with updated vital status ascertainment, paclitaxel was associated with improved efficacy but was not associated with increased mortality.
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http://dx.doi.org/10.1002/ccd.29152DOI Listing
http://www.ncbi.nlm.nih.gov/pmc/articles/PMC7693077PMC
November 2020

The SELUTION SLR™ drug-eluting balloon system for the treatment of symptomatic femoropopliteal lesions.

Future Cardiol 2021 03 20;17(2):257-267. Epub 2020 Aug 20.

Department of Angiology, Universitaets-Herzzentrum Freiburg, Bad Krozingen, Germany.

Endovascular treatment has become first line therapy for the treatment of femoropopliteal disease. Drug-coated devices play a key role in maintaining vessel patency. In the past antiproliferative coating of drug-coated balloons (DCBs) exclusively consisted of paclitaxel. Use of limus drugs was limited by a short residency time in the vessel wall. Besides the drug, the SELUTION SLR™ drug-eluting balloon system consists of a coating formulation of four excipients. The first excipient is a biodegradable polymer (poly(lactic-co-glycolic acid)) that is intermixed with the sirolimus to form micro-reservoirs and regulates drug release via matrix degradation. This review summarizes the existing pre-clinical and clinical literature on treatment of femoropopliteal artery lesions with the SELUTION SLR DCB.
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http://dx.doi.org/10.2217/fca-2020-0085DOI Listing
March 2021

Two-year Review on Mortality and Morbidity after Femoropopliteal Drug-coated Balloon Angioplasty in the Randomized EffPac Trial.

Radiology 2020 09 21;296(3):638-640. Epub 2020 Jul 21.

From the Department of Radiology, Jena University Hospital, Am Klinikum 1, 07747 Jena, Germany (U.T., R.A.); Center for Clinical Studies, Jena University Hospital, Jena, Germany (T.L.); REGIOMED Clinics, Sonneberg, Germany (M.T.); Heart Center Bad Krozingen, Bad Krozingen, Germany (T.Z., U.B.); and Department of Angiology, University Hospital Leipzig, Leipzig, Germany (D.S.).

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http://dx.doi.org/10.1148/radiol.2020201370DOI Listing
September 2020

Six-Month Outcomes From the First-in-Human, Single-Arm SELUTION Sustained-Limus-Release Drug-Eluting Balloon Trial in Femoropopliteal Lesions.

J Endovasc Ther 2020 Oct 15;27(5):683-690. Epub 2020 Jul 15.

Department of Radiology and Interventional Therapy, Vivantes Klinikum Neukölln, Berlin, Germany.

To evaluate the safety and efficacy of the novel SELUTION sustained-limus-release (SLR) drug-eluting balloon (DEB) in the treatment of femoropopliteal lesions. Between October 2016 and May 2017, 50 subjects (mean age 69.6±10.4 years; 29 men) with symptomatic moderate to severe lower limb ischemia (Rutherford categories 2 or 3) were enrolled at 4 German centers for the SELUTION SLR first-in-human trial ( NCT02941224). The SELUTION SLR utilizes micro-reservoirs (biodegradable polymer spheres containing sirolimus) embedded within an amphipathic membrane coated onto an angioplasty balloon. The biodegradable reservoirs are transferred to the target vessel lumen during brief balloon inflation. The primary trial objective was comparison of angiographic late lumen loss at 6 months against an objective performance criterion (OPC) value of 1.04 mm for uncoated balloon angioplasty. Secondary endpoints included device, procedural, and clinical success; clinical and imaging assessments of primary patency and restenosis; functional assessments including Rutherford category and ankle-brachial index (ABI); and major adverse events [composite of cardiovascular mortality, index limb amputation, target limb thrombosis, and clinically-driven target lesion revascularization (CD-TLR)]. At 6 months, median angiographic late lumen loss following SELUTION SLR treatment was 0.19 mm (range -1.16 to 3.07). Mean angiographic late lumen loss (n=34) was 0.29±0.84 mm (95% CI -0.01 to 0.58), significantly lower than the 1.04-mm OPC value (p<0.001). The rate of primary patency by duplex ultrasound was 88.4%, and freedom from angiographic binary restenosis was 91.2%. Through 6 months, there was significant improvement over baseline in Rutherford categories (p<0.001) and in ABI measurements (p<0.001). A single case (2%) of CD-TLR occurred at 5 months. There were no other major adverse events. Through 6 months, the SELUTION SLR DEB appears to inhibit restenosis effectively and safely, improving outcomes in subjects with symptomatic femoropopliteal disease.
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http://dx.doi.org/10.1177/1526602820941811DOI Listing
October 2020

Bypass Grafting vs Endovascular Therapy in Patients With Non-Dialysis-Dependent Chronic Kidney Disease and Chronic Limb-Threatening Ischemia (CRITISCH Registry).

J Endovasc Ther 2020 08 7;27(4):599-607. Epub 2020 Jul 7.

Department of Vascular Surgery, St. Franziskus Hospital Münster, Germany.

To report the outcomes of bypass grafting (BG) vs endovascular therapy (EVT) in patients with non-dialysis-dependent chronic kidney disease (CKD) and chronic limb-threatening ischemia (CLTI). The CRITISCH Registry is a prospective, national, interdisciplinary, multicenter registry evaluating the current practice of all available treatment options in 1200 consecutive CLTI patients. For the purposes of this analysis, only the 337 patients with non-dialysis-dependent CKD treated by either BG (n=86; median 78 years, 48 men) or EVT (n=251; median age 80 years, 135 men) were analyzed. The primary composite outcome was amputation-free survival (AFS); secondary outcomes were overall survival (OS) and amputation-free time (AFT). All outcomes were evaluated in Cox proportional hazards models; the results are reported as the hazard ratio (HR) and 95% confidence interval (CI). The Cox regression analysis revealed a significantly greater hazard of amputation or death after BG (HR 1.78, 95% CI 1.05 to 3.03, p=0.028). The models for AFT and overall survival also suggested a higher hazard for BG, but the differences were not significant (AFT: HR 1.66, 95% CI 0.78 to 3.53, p=0.188; OS: HR 1.41, 95% CI 0.80 to 2.47, p=0.348). The absence of runoff vessels (HR 1.73, 95% CI 1.15 to 2.60, p=0.008) was associated with a decreased AFS. The likelihood of amputation was higher in male patients (HR 2.21, 95% CI 1.10 to 4.45, p=0.027) and was associated with a lack of runoff vessels (HR 1.95, 95% CI 0.96 to 3.95, p=0.065) and myocardial infarction (HR 3.74, 95% CI 1.23 to 11.35, p=0.020). Death was more likely in patients without runoff vessels (HR 1.76, 95% CI 1.11 to 2.80, p=0.016) and those with a higher risk score (HR 1.73, 95% CI 1.03 to 2.91, p=0.038). This analysis suggested that BG was associated with poorer AFS than EVT in patients with non-dialysis-dependent CKD and CLTI. Male sex, previous myocardial infarction, and the absence of runoff vessels were additionally identified as predictors of poorer outcomes.
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http://dx.doi.org/10.1177/1526602820938465DOI Listing
August 2020

Total IN.PACT All-Subjects One-Year Analysis and Standard vs Broader Implications.

J Invasive Cardiol 2020 Jul;32(7):243-248

Case Western Reserve University School of Medicine, University Hospitals, 11100 Euclid Avenue, Lakeside 3rd Floor, Cleveland, OH 44106 USA.

Drug-coated balloons (DCBs) have been shown to be superior to percutaneous transluminal angioplasty (PTA) for symptomatic femoropopliteal disease in randomized clinical trials; however, their clinical effectiveness and safety in more complex disease is less defined. The study sought to conduct a patient-level pooled analysis of all prospective randomized and single-arm studies evaluating the safety and efficacy of IN.PACT Admiral DCB (Medtronic) worldwide and in patients with complex disease. Subjects were treated with either IN.PACT Admiral DCB (n = 1837) or PTA (n = 143). The primary endpoint was freedom from clinically driven target-lesion revascularization (CD-TLR) within 12 months. The primary safety composite endpoint was freedom from device- and procedure-related death through 30 days, and freedom from major target-limb amputation, clinically driven target-vessel revascularization, and thrombosis within 12 months. Subsequently, we examined "real-life" complex lesions in a subgroup analysis, with standard use defined as simple, single de novo lesions (n = 712) and broader use defined as bilateral or multiple lesions (n = 1125). DCB when compared with PTA had significantly higher rates of freedom from CD-TLR through 12 months (93.8% vs 80.2%, respectively; P<.001). The DCB group did note higher rates of mortality at 1 year (3.1% DCB vs 0.0% PTA; P=.03). Notably, the broader use group showed superiority over the PTA group for freedom from CD-TLR (91.7% vs 80.2%; P<.001). IN.PACT Admiral DCB showed clinical superiority to PTA in the largest patient-level pooled analysis. Additionally, despite more complex and challenging lesions, DCB was superior to PTA. However, further adequately powered randomized studies are needed to confirm these results.
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July 2020
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