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Prevalent baseline conduction abnormalities. Patients with pre-existing first-degree AV block and RBBB had significantly higher rates of new PPI post-TAVR compared to patients without. There was no significant difference between patients with or without LBBB and new PPI post-TAVR.
Abbreviations: AV, atrioventricular; LBBB, left bundle branch block; PPI, permanent pacemaker implantation; RBBB, right bundle branch block; TAVR, transcatheter aortic valve replacement.
