ObjectiveTo observe the clinical efficiency of endovascular treatment for Trans-Atlantic Inter-Society Consensus (TASC) type C occlusion of superficial femoral artery(SFA) or more than 70% stenosis andthe outcomes in1year’s follow up, and investigate the relevant factors ofin-stent restenosis (ISR).MethodsClinical data of 58cases(58 limbs)suffering from TASC type C occlusion of SFA or more than 70% stenosis in our hospital from May 2011 to May 2014 were collected and retrospectively analyzed. Allof themreceivedendovascular balloon dilatation and stent implantation.According to whether there wasany occlusion or more than 70% stenosisin 1 year postoperatively, the patientsweredivided intopatency group and re-occlusion group. Clinical data were compared and analyzed between the 2 groups.Results No perioperative deathwas foundinthe58 patients.Out of 58 limbsthere were 6 limbs not getting patency, with apatency rate of 89.7%.In 1 year’s follow-up, there were41 caseswith complete follow-up, and30of them were accordingly assigned to the patency group andthe other 11 to there-occlusion group.There was significant differenceinankle-brachial index betweenthe 2 groups[(0.55±0.16)vs(0.41±0.24),P<0.05]. Though there were no significant differences in theratio of smokers and Fontaine stage between them,theP valuewascomparativelysmaller,which might suggest thatthe2indiceswereassociated withISR.Conclusion Endovascular treatment is safe and effectivein the treatment of TASC type C occlusion of SFA.Theseverity ofvascular diseaseis associated with restenosis.%目的：观察泛大西洋协作组织共识（TASC）C型股浅动脉闭塞（或狭窄＞70%）腔内治疗效果及随访1年结果，分析支架内再狭窄（ISR）的相关因素。方法回顾首都医科大学附属北京天坛医院普通外科2011年5月至2014年5月期间收治的患下肢动脉硬化闭塞症TASC C型的患者58例（58条肢体）。手术方法为血管腔内球囊扩张＋支架置入术。术后1年随访是否有支架内再闭塞或狭窄（＞70%）。根据是否发生支架内再闭塞或狭窄（＞70%），将患者分为通畅组及再闭塞组，分析比较两组患者的临床资料。结果58例患者无围术期死亡。58条肢体中有6条未能开通，腔内治疗开通率为89.7%。1年后完成随访41例，通畅组30例，再闭塞组11例。两组患者踝肱指数相比差异具有统计学意义[（0.55±0.16） vs （0.41±0.24），P＜0.05]。两组患者的吸烟者比例和Fontaine分期虽无显著性差异，但P值相对较低，提示二者也可能与术后ISR相关。结论腔内治疗TASC C型股浅动脉闭塞安全有效，血管病变严重程度与ISR相关。
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