Bypass Versus Interwoven Nitinol Stents for Long Femoro-Popliteal Occlusions: A Propensity Matched Analysis

• Published in: Cardiovascular and interventional radiology 2022-07, Vol.45 (7), p.929-938
• Main Authors: Gostev, Alexander A., Osipova, Olesya S., Saaya, Shoraan B., Bugurov, Savr V., Cheban, Alexey V., Rabtsun, Artem A., Ignatenko, Pavel V., Karpenko, Andrey A.
• Format: Article
• Language: English
• Subjects: Angioplasty; Arterial Interventions; Calcification; Cardiology; Cardiovascular system; Clinical Investigation; Heart surgery; Imaging; Implants; Intervention; Ischemia; Knee; Matching; Medical research; Medicine; Medicine & Public Health; Nickel titanides; Nuclear Medicine; Occlusion; Patients; Radiology; Segments; Stents; Subgroups; Ultrasound
• ISSN: 0174-1551; 1432-086X
• DOI: 10.1007/s00270-022-03134-x

Purpose To compare femoro-popliteal bypass and interwoven nitinol stenting for long occlusions of the femoro-popliteal segment. Materials and Methods Single center retrospective propensity matching analysis of the symptomatic patients with long occlusion of the femoro-popliteal segment (> 20 cm), who underwent stenting with interwoven nitinol stent or femoro-popliteal bypass from 2012 to 2020. Primary endpoints: primary patency, primary-assisted patency, secondary patency. Secondary endpoints: major adverse cardiovascular events, major adverse limb events, primary sustained clinical improvement, survival. Results A total of 437 patients were enrolled: 294 in the bypass group and 143 in the endovascular therapy (EVT) group. After propensity score matching, 264 and 113 patients remained in the groups, respectively. A median occlusion length was 250 mm. One-year and two-year primary and secondary patency rates were comparable in both groups (two-year primary patency: 68.5% for bypass vs. 68.9% for EVT, p  = 1.00). In the “above the knee” subgroup analysis, two-year secondary patency was higher in the EVT group than in the bypass group (90.9% vs. 77.5%, p  = 0.048). In “below-the-knee” subgroup analysis, primary and primary assisted patency were statistically significantly higher in the EVT group than in artificial bypass subgroup (66.7% vs. 42.4%, p  = .046 and 76.7% vs. 45.5%, p  = .011, respectively). However, compared to autovenous bypass, the EVT group showed lower primary patency rates, although the differences are not significant. Conclusion A nonselective endovascular strategy can allow for regular successful treatment of femoro-popliteal lesions longer than 25 cm.