冠心病患者支架置入和经皮冠状动脉腔内成形术治疗后再狭窄的比较A comparison of stent implantation with balloon angioplasty for restenosis in patients with coronary artery disease
蔡煦,沈卫峰,于金德,张大东,张建盛,龚兰生
摘要(Abstract)：
目的 旨在分析冠心病患者冠状动脉 (冠脉 )支架置入和单纯球囊扩张 (PTCA)后晚期冠脉内径丢失及 6个月再狭窄发生率的差异 ,证实支架置入降低再狭窄作用并探讨可能机理。方法 冠心病介入治疗 35 2例中 ,选择连续 6 5例 (86个冠脉狭窄病变 )术后 6个月随访重复冠脉造影者 ,冠脉定量分析 (QCA)术前、术后和随访复查冠脉造影图象 ,并分析随访时内径丢失与支架置入和单纯球囊扩张的关系及术后 6个月再狭窄发生率。结果 冠脉内支架置入后随访期病变血管最小内径较大 ,而绝对内径丢失、相对内径丢失、绝对管腔面积丢失和内径丢失指数均低于单纯PTCA ,支架置入组再狭窄病变内径丢失百分比小于单纯PTCA组 ;再狭窄发生和支架置入呈负相关 (RR 0 86 ,95 %CI0 6 3～ 1 16 ,P <0 0 5 ) ;6个月 41例支架置入再狭窄 12例 (2 9 3% ) ,2 4例单纯PTCA再狭窄 12例(5 0 0 % ,P =0 0 6 9) ;5 3个支架置入病变再狭窄 14个 (2 6 4% ) ,33个单纯PTCA病变再狭窄 16个(48 5 % ,P =0 0 37)。结论 国人冠心病患者冠脉内置入支架可能减少晚期冠脉再狭窄发生
关键词(KeyWords)： 再狭窄;PTCA;支架置入
基金项目(Foundation):
作者(Author): 蔡煦,沈卫峰,于金德,张大东,张建盛,龚兰生
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