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Use of heparin coated vascular stents in femoropopliteal chronic total occlusions: Long term outcomes.

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PURPOSE To evaluate the long-term clinical efficacy of the Tigris © stent (Gore ©) in femoropopliteal chronic total occlusions (CTOs). MATERIAL AND METHODS This single centre retrospective study included 29… Click to show full abstract

PURPOSE To evaluate the long-term clinical efficacy of the Tigris © stent (Gore ©) in femoropopliteal chronic total occlusions (CTOs). MATERIAL AND METHODS This single centre retrospective study included 29 patients treated with 47 Tigris© stents for CTOs. Lesion location, type, length, revascularisation method, smoking status and diabetes were reviewed. Clinical follow-up was performed. Primary safety points were complications and adverse events. Secondary efficacy points were symptom deterioration, freedom from target lesion revascularization (TLR) and amputation rate. Freedom from TLR was evaluated with Kaplan-Meier analysis; Cox multivariable logistic regression analysis of the factors associated with stent re-occlusion was also performed. RESULTS All procedures were technically successful without any peri- or post-procedural complications and adverse events. Median follow-up was 48 months (range: 7-70). Lesions were located in the superficial femoral (19), popliteal (3) and femoropopliteal (7) arteries with mean lesion length 13.9 ± 7.6 cm. In 12 patients subintimal recanalization was performed. Freedom from TLR rates at 6, 12, 18, 24 and 36 months were 96.6 %, 85.7 %, 81.9 %, 78.2 % and 74.3 % respectively. No stent fracture was observed and no amputation was performed in any of the patients. Smoking status, the presence of diabetes, lesion localization and recanalization type were not associated with stent re-occlusion. CONCLUSION This study demonstrated that use of a heparin coated vascular stent for femoropopliteal CTOs appears to offer satisfactory long-term results.

Keywords: term; long term; femoropopliteal chronic; total occlusions; use heparin; chronic total

Journal Title: European journal of radiology
Year Published: 2020

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