Late Electrocardiographic Changes in Patients with New-Onset Left Bundle Branch Block Following Transcatheter Aortic Valve Implantation
This study sought to determine, in patients with new-onset persistent left bundle branch block (NOP-LBBB) after transcatheter aortic valve implantation (TAVI), the incidence and factors associated with (i) LBBB recovery and (ii) permanent pacemaker implantation (PPI) at 1-year follow-up. This was a multicenter study including 153 patients (mean age: 81 ±5 years, 56% of women) with NOP-LBBB post-TAVI (balloon-expandable valve in 112 patients). Delta PR (ΔPR) and delta QRS (ΔQRS) were defined as the difference in PR and QRS length between baseline and hospital discharge ECG, and the relative ΔPR and ΔQRS as absolute ΔPR and ΔQRS divided by ba seline PR and QRS length, respectively.
Source: The American Journal of Cardiology - Category: Cardiology Authors: Laurent Faroux, Guillem Muntan é-Carol, Marina Urena, Luis Nombela-Franco, Ignacio Amat-Santos, Neal Kleiman, Antonio Munoz-Garcia, Felipe Atienza, Vicenç Serra, Marc W. Deyell, Gabriela Veiga, Jean-Bernard Masson, Victoria Canadas-Godoy, Dominique Himb Source Type: research