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心脏移植相关冠状动脉疾病的诊断研究进展

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摘要 心脏移植是终末期心脏衰竭的一种有效治疗手段,然而移植后移植心脏内迅速进行性的血管闭塞,是引起心脏移植后远期死亡或再次移植的重要原因,又被称为心脏同种异体移植物血管病变或移植相关冠状动脉疾病(transplant associated coronary artery disease, TxCAD)。根据国际心肺移植协会登记处统计,TxCAD的发生率为移植后5年32.3%,8年45.7%。形态学上,TxCAD不同于非移植后的“天然”动脉粥样硬化性冠状动脉疾病,其病变更为弥散,病变累及远端的心外膜血管和心肌内的血管;组织学上,则具有同心环状的内膜增生伴少量弹性薄层的特点。由于此种血管病变的弥散性,传统的介入手段仅仅只在病变自然进程的晚期可选择,但效果往往不甚满意;经皮冠状动脉腔内成形术(PTCA)和支架置入术后5年具有68%的高再狭窄率,
出处 《中华心血管病杂志》 CAS CSCD 北大核心 2008年第1期82-84,共3页 Chinese Journal of Cardiology
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参考文献27

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