经导管主动脉瓣植入术后心脏起搏的研究进展

心脏传导异常和（或）房室传导阻滞是经导管主动脉瓣植入（TAVI）术后常见的并发症之一。房室传导阻滞源于人工瓣膜假体对传导系统的损伤。主动脉瓣狭窄患者接受TAVI术前存在右束支传导阻滞（RBBB）、采用自膨胀式美敦力CoreValve系统（MCRS）以及瓣膜假体植入左室流出道过深均被认为是术后需要永久性心脏起搏治疗的相关因素。本文对TAVI术后房室传导阻滞及需要永久性心脏起搏治疗的发生率和预测因子进行综述。

Advances in Permanent Pacemaker Requirement after Transcatheter Aortic Valve Implantation

Abstract] Cardiac conduction abnormalities and/or atrioventricular (AV) block have been reported as one of the most frequent complications of transcatheter aortic valve implantation (TAVI). The impairment of AV conduction was resulted from the balloon and valve-induced injury. Patients with right bundle branch block (RBBB) before TAVI operation, receiving the Medtronic CoreValve Revalving System (MCRS) implant and the implantation of valve prosthesis too deep in the left ven? tricular outflow tract have been reported to require permanent pacemaker implantation.