Lesion Characteristics Associated with Loss of Primary Patency After Endovascular Therapy for Common Femoral Artery Lesions

Abstract

PurposeTo identify lesion characteristics associated with restenosis after endovascular therapy (EVT) for common femoral artery (CFA) lesions in patients with peripheral artery disease (PAD) in real-world practice.Materials and MethodsWe included 751 Japanese patients with PAD who underwent CFA EVT. Data were from a large-scale retrospective multicenter registry study. The association of lesion characteristics with the risk of restenosis was investigated with the Cox proportional hazards regression model.ResultsLesions extended to the external iliac artery in 10.0% of patients, were isolated in the CFA in 59.9%, and involved the bifurcation in 30.1%. Chronic total occlusion was noted in 21.1%, and 99% stenosis, in 19.9%. Among the limbs with CFA lesions, 16.4% had a history of CFA EVT. Mean total lesion length was 32 ± 15 mm, and reference vessel diameter, 7.3 ± 1.4 mm. Plain old balloon angioplasty, drug-coated balloon angioplasty, and stent implantation were performed in 56.3, 23.2, and 20.5% of patients, respectively. The mean follow-up period was 10.4 ± 9.5 months. Rates of freedom from restenosis and reintervention at 1 year were 78.2 and 86.6%, respectively. Lesion characteristics independently associated with restenosis were history of CFA EVT, reference vessel diameter less than 6 mm, and lesion length greater than or equal to 50 mm; adjusted hazard ratios were 1.63 (P = 0.007), 1.93 (P = 0.006), and 1.71 (P = 0.018), respectively.ConclusionHistory of CFA EVT, smaller reference vessel diameter, and longer lesion length are independent risk factors for restenosis after CFA EVT.Level of EvidenceLevel 3.