摘要目的 评价血管腔内术对膝下动脉闭塞疾病的疗效。方法 观察2008年8月-2010年6月间广州医学院第二附属医院血管外科收治的49例（53条患肢）膝下动脉闭塞症患者，分析腔内治疗前后的症状、体征、踝肱指数(ABI)、并发症、随防结果 。结果 53条患肢中，影像学技术成功49条患肢，成功率为92.5％，临床症状明显改善；术后平均随访14月（5～21月），术后1年的通畅率为77.6％，保肢率为91.8％，存活率为95.9％。结论 血管腔内技术能安全、有效治疗膝下动脉闭塞症，提高保肢率，应作为该病血运重建的首选方法。

abstractsObjective To evaluate the clinical effect of endovascular treatment for the infrapopliteal arterial occlusive disease. Methods 49 patients ( 53 limbs ) undergoing endovascular treatment from August 2002 to June 2010 in Department of Vascular Surgery of The Second Affiliated Hospital of Guangzhou Medical College were included. The clinical data and follow-up data were analyzed retrospectively. Results 49 limbs were recanalized with endovascular treatment the technical success rate was 92.5％ (49/53). The corresponding symptoms were disappeared or improved obviously. Anklebrachial index(ABI) increased from (0.31 ± 0.19) to (0.83 ± 0.27). The mean follow-up time was 14 months (range 5-21 months). The 12-month accumulated primary patency rate, limbs salvage rate, and survival rate were 77.6％, 91.8％, and 95.9％. Conclusion Endovascular treatment can be performed safely on patients with infrapopliteal arterial occlusive disease. High limb salvage rates can be achieved by Endovascular treatment, and it should be the primary choice for for infrapopliteal arterial occlusive disease in patients with lower extremity ischemia.