Outcomes in Patients with Left Bundle Branch Block after Rapid Deployment Aortic Valve Replacement.

Autor: Schlömicher, Markus, Useini, Dritan, Haldenwang, Peter Lukas, Naraghi, Hamid, Moustafine, Vadim, Bechtel, Matthias, Strauch, Justus Thomas
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Zdroj: Thoracic & Cardiovascular Surgeon; Oct2023, Vol. 71 Issue 7, p528-534, 7p
Abstrakt: Objectives Increased rates of postoperative left bundle branch block (LBBB) and permanent pacemaker implantation (PPI) frequently occur after implantation of rapid deployment valves. The impact of LBBB on follow-up outcomes remains controversial. So far, no data regarding long-term outcomes exist. Aim The aim of this study was to analyze the impact of LBBB on postoperative outcomes after rapid deployment aortic valve replacement (RDAVR). Methods A total of 620 consecutive patients without preexisting LBBB or PPI who underwent rapid deployment AVR between March 2012 and September 2019 were included. New-onset LBBB was defined as any new LBBB that persisted at hospital discharge. The median follow-up time for clinical data was 1.7 years post-RDAVR. Results At discharge, new-onset LBBB was seen in 109 patients (17.5%). There were no differences between the LBBB groups and no-LBBB groups regarding baseline characteristics. At a median follow-up of 1.7 years, no difference was found between LBBB groups and no-LBBB groups concerning all-cause mortality (12.8 vs. 11.7%; hazard ratio [HR]: 1.08; 95% confidence interval [CI]: 0.74–1.53; p = 0.54). Nevertheless, new-onset LBBB was associated with significant higher pacemaker implantation rates at follow-up (10.1 vs. 6.3%; HR: 3.58; 95% CI: 1.89–6.81 p < 0.001). Conclusion After a median follow-up of 1.7 years, new-onset LBBB was not associated with increased mortality. Nevertheless, higher pacemaker implantation rates were observed in patients with new-onset LBBB after RDAVR. [ABSTRACT FROM AUTHOR]
Databáze: Complementary Index