Left bundle branch block is the most common type of conduction disorder after transcatheter aortic valve replacement.Postoperative persistent left bundle branch block can cause ventricular systolic and diastolic dysfunction,which often affects the prognosis of patients when it progresses to high atrioventricular block.Per-manent pacemaker implantation is often used as a new treatment for persistent left bundle branch block after tran-scatheter aortic valve replacement,but its indication needs further clinical demonstration.The pacing of the con-duction system related to the left bundle branch block is the fundamental treatment,but the long-term prognosis is still unclear.This article summarized the research progress in the related factors,prognosis,and treatment of left bundle branch block after transcatheter aortic valve replacement.
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