Characteristics of Cardiomyopathy in Patients With Chronic Left Bundle Branch Block Undergoing Right Ventricular Pacing.

ABSTRACT:

Background

Left bundle branch block (LBBB) and right ventricular pacing (RVP) are associated with abnormal myocardial mechanics and cardiomyopathy. Consequently, chronic LBBB may increase the risk of heart failure and mortality in patients undergoing RVP.

Methods

Using the TriNetX Analytics Network database, we identified patients who underwent pacemaker implantation between January 1, 2014 and January 1, 2024. Exclusion criteria included a history of heart failure, previous cardiac devices, cardiac resynchronization therapy (CRT) during the index hospitalization, or a left ventricular ejection fraction (LVEF) of less than 50%. The primary outcome incident systolic heart failure and all-cause mortality occurring from the index hospitalization through November 2024.

Result

SUBMITTER: Abe TA 

PROVIDER: S-EPMC12439233 | biostudies-literature | 2025 Sep

REPOSITORIES: biostudies-literature