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心功能不全合并冠状动脉慢性完全闭塞病变患者行经皮冠状动脉介入治疗的进展 被引量:6

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摘要 近些年,随着介入技术、器械和术者操作经验的提高,慢性完全闭塞(chronic total occlusion,CTO)病变行经皮冠状动脉介入治疗(percutaneous coronary intervention,PCI)的成功率不断提升,一些有经验的术者成功率更是高达90%以上,已有越来越多的CTO患者接受PCI。EURO-CTO研究[1]显示CTO-PCI可以明显改善患者症状及生活质量。IRCTO研究[2]也证实CTO-PCI可以降低主要不良心血管事件(major adverse cardiovascular events,MACE)发生率。正是基于这些现有的循证医学证据,国内外PCI指南已将CTO-PCI列为Ⅱa类推荐[3-5]。然而,冠状动脉完全闭塞后长期缺血会导致部分心肌坏死或处于冬眠状态,导致心功能下降。CTO病变合并严重心功能不全,即左心室射血分数(leftventricular ejection fraction,LVEF)<40%的患者约占CTO病变患者的20%。该类患者手术难度大、手术风险高[6]。哪些患者更适合行CTO-PCI以及如何进行CTO-PCI是冠状动脉介入领域亟待探讨及解决的问题。
出处 《中国介入心脏病学杂志》 2019年第10期590-594,共5页 Chinese Journal of Interventional Cardiology
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