RT Journal Article T1 Clinical Impact of Baseline Right Bundle Branch Block in Patients Undergoing Transcatheter Aortic Valve Replacement. A1 Auffret, Vincent A1 Webb, John G A1 Eltchaninoff, Hélène A1 Muñoz-García, Antonio J A1 Himbert, Dominique A1 Tamburino, Corrado A1 Nombela-Franco, Luis A1 Nietlispach, Fabian A1 Morís, César A1 Ruel, Marc A1 Dager, Antonio E A1 Serra, Vicenç A1 Cheema, Asim N A1 Amat-Santos, Ignacio J A1 de Brito, Fábio Sandoli A1 Lemos, Pedro Alves A1 Abizaid, Alexandre A1 Sarmento-Leite, Rogério A1 Dumont, Eric A1 Barbanti, Marco A1 Durand, Eric A1 Alonso Briales, Juan H A1 Vahanian, Alec A1 Bouleti, Claire A1 Immè, Sebastiano A1 Maisano, Francesco A1 Del Valle, Raquel A1 Benitez, Luis Miguel A1 García Del Blanco, Bruno A1 Puri, Rishi A1 Philippon, François A1 Urena, Marina A1 Rodés-Cabau, Josep K1 outcomes K1 permanent pacemaker implantation K1 right bundle branch block K1 sudden cardiac death K1 transcatheter aortic valve replacement AB This study sought to assess the influence of baseline right bundle branch block (RBBB) on all-cause and cardiovascular mortality as well as sudden cardiac death (SCD) among patients undergoing transcatheter aortic valve replacement (TAVR). Few data exist regarding the late clinical impact of pre-existing RBBB in TAVR recipients. A total of 3,527 patients (mean age 82 ± 8 years, 50.1% men) were evaluated according to the presence of RBBB on baseline electrocardiography. Intraventricular conduction abnormalities were classified according to the American Heart Association, American College of Cardiology Foundation, and Heart Rhythm Society recommendations for standardization and interpretation of the electrocardiogram. TAVR complications and causes of death were defined according to Valve Academic Research Consortium 2 definitions. RBBB was present on baseline electrocardiography in 362 patients (10.3%) and associated with higher 30-day rates of permanent pacemaker implantation (PPI) (40.1% vs. 13.5%; p  Pre-existing RBBB was found in 10% of TAVR recipients and was associated with poorer clinical outcomes. Patients with baseline RBBB without permanent pacemakers at hospital discharge may be at especially high risk for high-degree atrioventricular block and/or SCD during follow-up. Future studies should evaluate strategies aimed at the early detection of patients at risk for late development of high-degree atrioventricular block. YR 2017 FD 2017-07-19 LK http://hdl.handle.net/10668/11432 UL http://hdl.handle.net/10668/11432 LA en DS RISalud RD Apr 5, 2025