Association of Right Bundle Branch Block with Ischemic Stroke Incidence: A UK Biobank Cohort Study.

Introduction: Right bundle branch block (RBBB) is often considered benign; however, its association with ischemic stroke (IS) remains unclear. We aimed to investigate the relationship between RBBB and the incidence of IS.

Methods: We conducted a retrospective cohort study using the UK Biobank database (2004-2021), which included 3,634 participants with new-onset RBBB and 3,643 matched controls.