临床与实验心脏病学
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Mechanical Factors Necessitating Pacemaker Implantation after Transcatheter Aortic Valve Replacement

Daxin Zhou*, Yiming Qi, Shasha Chen, Shiqiang Hou, Junbo Ge

Complications of Transcatheter Aortic Valve Replacement (TAVR) often result in a need for subsequent permanent pacemaker implantation. However, the risk factors for delayed pacemaker implantation remain unclear. Characteristics of TAVR prostheses and aortic root anatomy determine their mechanical relationships, which might damage the conduction bundle. At present, it is believed that the continuous compression of surrounding tissues by Self-Expandable Valves (SEV) after implantation is one of the main mechanisms of delayed pacemaker implantation. Exploring the mechanical sequelae of implantation might provide a basis for future predictions. This article summarizes and discusses current literature regarding the mechanical sequelae of TAVR.