李易航,夏智渊,万俊义,徐亮,房芳,潘湘斌,张戈军

• 1:国家心血管病中心北京协和医学院中国医学科学院阜外医院结构性心脏病中心

摘要(Abstract)：

由于生物瓣膜不需要长期抗凝的特点，外科应用生物瓣膜治疗主动脉瓣功能障碍的患者比例不断增加。然而，由于瓣膜衰败等因素影响，生物瓣膜寿命较短，二次外科手术的风险高，尤其是在老年患者中。瓣中瓣经导管主动脉瓣置换术（ViV-TAVR）是外科生物瓣膜衰败后、患者二次外科手术可行的替代方案。目前世界上大多数ViV-TAVR手术多是TAVR失败的一种补救措施，而无支架外科生物瓣膜X线标记物，对介入治疗可能更具挑战性。本文报道1例无支架生物瓣膜衰败后于X线引导下行经导管主动脉瓣置换术。因此术前全面CT检查对整体手术过程具有重要参考价值，该病例对临床上的类似情况提供新的思路。

关键词(KeyWords)： 经导管主动脉瓣置换术;无支架生物瓣膜;瓣中瓣

Abstract:

Keywords:

基金项目(Foundation):

作者(Author): 李易航,夏智渊,万俊义,徐亮,房芳,潘湘斌,张戈军

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