The Midterm Outcomes of Endovascular Therapy for Femoropopliteal Lesions via Drug-Coated Balloon, Directional Atherectomy and Bare Metal Stent Angioplasty

Abstract

Background: This study investigated the midterm primary patency of drug-coated balloons (DCBs), directional atherectomy plus balloon angioplasty (DA), and bare metal stent (BMS) angioplasty for the treatment of femoropopliteal lesions. Methods: This two-center retrospective cohort study included 105 patients (110 limbs) undergoing DCB, DA, and BMS angioplasty—32 patients (34 limbs), 31 patients (32 limbs), and 42 patients (44 limbs), respectively. The demographic, baseline, and procedure data were collected, and the complications and midterm outcomes (patency, amputation-free survival, and clinically driven target lesion revascularization rates) were analyzed. Results: All three procedures achieved a 100% success rate. Significant improvements were noted in ankle brachial index, walking distance, and Rutherford classification at 30 days post-procedure (p < 0.001), with no differences or severe complications among the groups. The all-cause mortality rate during the follow-up period, was 5.5%, and amputation-free survival rates at 24 months were 97.0%, 90.6% and 90.9% in the DCB, DA, and BMS angioplasty groups, respectively. The primary patency rate for the DCB group (79.4%) exceeded those of the DA (56.2%) and BMS (52.2%) groups (p < 0.05), with no significant difference between the DA and BMS groups at 24 months. The secondary patency and clinically driven target lesion revascularization rates were similar among the three groups. A runoff number ≤1, Trans-Atlantic Intersociety Consensus (TASC) D, and severe calcification were found to be independent risk factors for primary patency. Conclusions: The DCB procedure demonstrated superior primary patency, compared to both BMS and DA procedures, in the treatment of femoropopliteal lesions.

Keywords

• femoropopliteal lesion
• endovascular therapy
• directional atherectomy
• drug-coated balloon
• atherosclerosis
• bare metal stent
• angioplasty