宋现涛,苑飞,李益先,柳弘,金泽宁,孟康,田锐,陈欣,葛长江,周渊,吕树铮

• 1:首都医科大学附属北京安贞医院

摘要(Abstract)：

目的应用冠状动脉血管内光学相干断层成像技术(optical coherence tomography,OCT)评价造影随访无再狭窄的药物洗脱支架(drug eluting stent,DES)内皮增生情况。方法从北京安贞医院2007年9月至2008年9月连续入选DES术后无症状而接受冠状动脉造影复查无明显再狭窄的患者18例,所有患者接受OCT检查,比较不同的DES植入时间、不同DES组之间,每组支架小梁血管内膜增生情况。结果共分析4709个支架小梁,其中被内皮完全覆盖的支架小梁个数4173个(88.6%),被内皮部分覆盖的个数是33个(0.7%),暴露的小梁个数382个(8.1%);贴壁不良的小梁个数121个(2.6%),覆盖支架小梁的内膜的平均厚度是0.099mm,内膜厚度>100μm的小梁个数2378个(50.5%);不同药物洗脱支架之间内膜增生厚度、支架小梁内膜覆盖及晚期支架贴壁不良差异有统计学意义;与DES植入时间<12个月相比,植入时间12个月血管内膜增生厚度有明显增加趋势(0.1183mm比0.0875mm;P=0.001);支架内膜无覆盖比率分别是:1.7%比6.8%(P<0.05);贴壁不良比率是:2.1%比0.5%(P<0.001)。结论通过OCT分析16个月左右的药物洗脱支架血管内膜厚度,总的来说90.1%的支架小梁有内膜覆盖,但是仍然有高达9.9%的无内膜覆盖,支架类型、支架置入时间之间内膜覆盖、支架贴壁有一定差异;同时支架植入大于12个月的支架贴壁不良比率高于不足12个月的,提示更晚期的支架贴壁不良情况存在,对于药物洗脱支架的随访时间应该更长,双联抗血小板治疗疗程也许应该更长。

关键词(KeyWords)： 体层摄影术,光学相干;药物洗脱支架;血管内膜

Abstract:

Keywords:

基金项目(Foundation): 北京市科委高科技战略主题计划(D0906006040191);; 北京市科技新星计划(2007A001)

作者(Author): 宋现涛,苑飞,李益先,柳弘,金泽宁,孟康,田锐,陈欣,葛长江,周渊,吕树铮

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