Transcatheter aortic valve replacement (TAVR) has become more common than surgical aortic valve replacement since 2016, with over 200,000 procedures globally each year. As patients increasingly outlive their TAVR devices, managing these cases is a growing concern. Treatment options include surgical removal of the old TAVR device (transcatheter aortic valve [TAV] explant) or implantation of a new transcatheter aortic valve (redo TAV). Redo TAV is complex because of the unique designs of TAV devices; compatibility issues; and the need for individualized planning based on factors such as implant depth, shape, and coronary artery relationships. This review serves as a comprehensive guide for redo TAV, detailing the design characteristics of TAV devices, device compatibility, standardized terminology, and a structured approach for computed tomography analysis. It aims to facilitate decision making, risk identification, and achieving optimal outcomes in redo TAV procedures.

中文翻译：

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经导管主动脉瓣设计和 Redo-TAV (TAV-in-TAV) 手术系统规划指南。


自 2016 年以来，经导管主动脉瓣置换术 (TAVR) 比外科主动脉瓣置换术更加常见，全球每年进行超过 20 万例手术。随着患者的寿命越来越长，TAVR 设备的寿命越来越长，这些病例的管理越来越受到关注。治疗选择包括手术切除旧的 TAVR 装置（经导管主动脉瓣 [TAV] 外植体）或植入新的经导管主动脉瓣（重做 TAV）。由于 TAV 设备的独特设计，重做 TAV 很复杂；兼容性问题；以及根据植入深度、形状和冠状动脉关系等因素进行个性化规划的需要。本综述作为重做 TAV 的综合指南，详细介绍了 TAV 设备的设计特征、设备兼容性、标准化术语以及计算机断层扫描分析的结构化方法。它旨在促进重做 TAV 程序中的决策、风险识别和实现最佳结果。