1. ZILVERPASS Study: ZILVER PTX Stent vs Bypass Surgery in Femoropopliteal Lesions.
- Author
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Bosiers M, Setacci C, De Donato G, Torsello G, Silveira PG, Deloose K, Scheinert D, Veroux P, Hendriks J, Maene L, Keirse K, Navarro T, Callaert J, Eckstein HH, Teβarek J, Giaquinta A, and Wauters J
- Subjects
- Aged, Aged, 80 and over, Blood Vessel Prosthesis Implantation adverse effects, Brazil, Cardiovascular Agents therapeutic use, Endovascular Procedures adverse effects, Europe, Female, Femoral Artery diagnostic imaging, Femoral Artery physiopathology, Humans, Length of Stay, Male, Middle Aged, Paclitaxel adverse effects, Peripheral Arterial Disease diagnostic imaging, Peripheral Arterial Disease physiopathology, Popliteal Artery diagnostic imaging, Popliteal Artery physiopathology, Prospective Studies, Prosthesis Design, Recurrence, Risk Factors, Time Factors, Treatment Outcome, Vascular Patency, Blood Vessel Prosthesis, Blood Vessel Prosthesis Implantation instrumentation, Drug-Eluting Stents, Endovascular Procedures instrumentation, Femoral Artery surgery, Paclitaxel administration & dosage, Peripheral Arterial Disease therapy, Popliteal Artery surgery
- Abstract
Purpose: To report the 12-month results of a multicenter, prospective, randomized controlled trial to determine if the ZILVER PTX paclitaxel-eluting stent was noninferior in terms of safety and efficacy compared with surgical bypass. Materials and Methods: This is a study in symptomatic TransAtlantic Inter-Society Consensus (TASC) C and D femoropopliteal lesions comparing endovascular ZILVER PTX stenting vs surgical bypass surgery using a prosthetic graft ( ClinicalTrials.gov identifier NCT01952457). Between October 2013 and July 2017, 220 patients (mean age 68.6±10.5 years; 159 men) were enrolled and randomized to the ZILVER PTX treatment group (113, 51.4%) or the bypass treatment group (107, 48.6%). Most of the lesions were occlusions (208, 94.5%); the mean lesion length was 247.1±69.3 mm. The primary outcome measure was primary patency at 12 months, defined as no evidence of binary restenosis or occlusion within the target lesion or bypass graft based on a duplex-derived peak systolic velocity ratio <2.4 and no clinically-driven target lesion revascularization (TLR) in endovascular cases or reintervention to restore flow in the bypass. Results: The estimated 12-month primary patency rate was 74.5% (95% CI 66.3% to 82.7%) for the ZILVER PTX group vs 72.5% (95% CI 63.7% to 81.3%) for the bypass arm (p=0.998). Freedom from TLR at 12 months was 80.9% (95% CI 73.3% to 88.5%) for the ZILVER PTX group vs 76.2% (95% CI 68.0% to 84.4%) for the bypass group (p=0.471). The 30-day complication rate was significantly lower in the ZILVER PTX group (4.4% vs 11.3%, p=0.004). Also, procedure time and hospital stay were significantly shorter in the ZILVER PTX group (p<0.001 for both). Conclusion: With noninferior patency results, a lower complication rate, and shorter procedures and hospital stays, paclitaxel-eluting stenting might become a recommended treatment for long TASC C and D femoropopliteal lesions.
- Published
- 2020
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