Temporal incidence and predictors of high‐grade atrioventricular block after transcatheter aortic valve replacement
Journal of the American Heart Association May 12, 2021
El‐Sabawi B, Welle GA, Cha YM, et al. - Researchers investigated the temporal incidence of initial episode of high‐grade atrioventricular block (HAVB) stratified by pre‐ and post‐transcatheter aortic valve replacement (TAVR) conduction as well as explored predictors of delayed events. They retrospectively analyzed 953 patients receiving TAVR at a single center between February 2012 and June 2019, for HAVB within 30 days. In 153 (16.1%) patients, occurrence of HAVB was evident. Post-removal of those with preventive permanent pacemaker placed post‐TAVR, delayed HAVB incidence was estimated to be 33/882 (3.7%). A higher frequency of occurrence of delayed HAVB was found in patients with baseline first‐degree atrioventricular block or right bundle‐branch block, new left bundle‐branch block, and self‐expanding valve. These data offer understanding of optimal monitoring as well as pacing strategies based on periprocedural ECG results.
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