Author + information
- Yusuke Watanabe,
- Hiroyoshi Kawamoto,
- Koji Hosawa and
- Sunao Nakamura
Background: Percutaneous transluminal angioplasty with stent deployment for superficial femoropopliteal artery (SFA) has been associated with high rate of restenosis. However, the presence of patent below the knee (BTK) vessels might prevent restenosis in SFA lesions in terms of preserved distal outflow. We aimed this study to evaluate the impact of patent BTK vessels following revascularization for chronic total occlusions (CTO) in SFA lesions.
Methods: We retrospectively evaluated a total of 222 limbs in 189 patients with SFA-CTO lesions treated with bare nitinol stents. The limbs were divided into two groups according to the number of patent BTK vessels (number of patent BTK vessels <2; 68 limbs vs. ≥2; 154 limbs). The study endpoint was the restenosis rate in SFA lesions at 1- and 2-year follow-up. The outcomes were evaluated on limbs basis, and calculated using the Kaplan-Meier method.
Results: The rates of repeat revascularization in SFA lesions were significantly higher in patients with less than 1 patent BTK vessel compared to those with equal or greater than 2 patent BTK vessels (8.5% vs. 47.4% at 1-year, 17.6% vs. 69.2% at 2-year, log-rank p<0.001).
Conclusions: The patent BTK vessels were associated with better patency rate of SFA-CTO lesions treated with bare nitinol stents.
Poster Hall, Hall C
Sunday, March 19, 2017, 9:45 a.m.-10:30 a.m.
Session Title: Endovascular Therapy: Running From Risk
Abstract Category: 39. Vascular Medicine: Endovascular Therapy
Presentation Number: 1299-361
- 2017 American College of Cardiology Foundation