Objectives
This study aimed to examine the outcomes of endovascular recanalization for native superficial femoral artery (SFA) chronic total occlusion (CTO) in patients with critical limb ischemia (CLI) after femoropopliteal bypass failure with limited surgical revascularization options.
Background
Endovascular recanalization of native artery occlusions has been recently used as a new alternative for threatened limbs after bypass graft occlusion. The feasibility and efficacy has not been widely reported.
Methods
We retrospectively analyzed 45 consecutive patients (45 limbs) undergoing endovascular recanalization of native SFA occlusion following failed femoropopliteal bypass between June 2010 and December 2016.
Results
All limbs had Transatlantic Inter‐Society Consensus class C (26.7%, 12/45) or D (73.3%, 33/45) lesions with a mean lesion length of 29.8 cm. The technical success rate was 95.6% (43/45 limbs). The ABI showed a significant increase from 0.3 ± 0.1 pre‐procedure to 0.7 ± 0.1 post‐procedure (P < 0.01). Two early (<30 days) below‐knee amputations due to acute thrombotic ischemia occurred during perioperative period and resulted in one death due to myocardial infarction. The mean follow‐up was 42.7 months (1‐62 months). Two patients were lost to follow up. The primary patency rates at 12 and 36 months were 54% and 51%, respectively. Secondary patency rates at 12 and 36 months were 78% and 61%, respectively. Limb salvage rate was 95% and amputation‐free survival rate was 88% at both 12 and 36 months.
Conclusion
Recanalization of native SFA CTO due to failed femoropopliteal bypass offers a feasible and safe alternative to surgical reconstruction with acceptable limb salvage.