Long-Term Ventricular Pacing Dependency and Pacemaker Implantation Predictors after Transcatheter Aortic Valve Replacement - A 1-Year Follow-Up

• Published in: Arquivos brasileiros de cardiologia 2022-01, Vol.119 (4), p.522-530
• Main Authors: Pinto, Ricardo Alves, Proença, Tânia, Carvalho, Miguel Martins, Pestana, Gonçalo, Lebreiro, Ana, Adão, Luis, Macedo, Filipe
• Format: Article
• Language: eng ; por
• ISSN: 1678-4170
• DOI: 10.36660/abc.20210613

BACKGROUNDConduction disturbances (CD) are the most frequent complication after transcatheter aortic valve replacement (TAVR), and there continues to be a lack of consensus on their management. OBJECTIVETo assess new CD and permanent pacemaker (PPM) implantation after TAVR and to evaluate the ventricular pacing percentage (VP) up to 1 year of follow-up. METHODSPatients who underwent TAVR from October 2014 to November 2019 were enrolled; patients with previous PPM were excluded. Clinical, procedure, ECG, and PPM data were collected up to 1 year after implantation. The significance level adopted in the statistical analysis was 0.05. RESULTSA total of 340 patients underwent TAVR. The most frequent CD was the new left bundle branch block (LBBB; 32.2%), which 56% resolved after 6 months. Right bundle branch block (RBBB) was the biggest risk factor for advanced atrioventricular block (AVB) [OR=8.46; p