PREVALENCE AND PROGNOSTIC SIGNIFICANCE OF BUNDLE BRANCH BLOCKS IN ACUTE CORONARY SYNDROME IN A TERTIARY CARE HOSPITAL-A PROSPECTIVE STUDY

Abstract

Background: Bundle branch blocks (BBBs) in acute coronary syndrome (ACS) represent a significant clinical challenge in cardiovascular medicine. These conduction disturbances can complicate diagnosis, affect treatment decisions, and potentially influence patient outcomes. Despite their clinical importance, the exact prevalence and prognostic implications of BBBs in ACS remain subjects of ongoing research. Methods: This prospective study was conducted at Basaveshwara Medical College Hospital, Chitradurga, over 18 months (March 2021 to August 2022). Thirty patients with ACS and new-onset BBB were enrolled. Patients underwent comprehensive clinical examination, ECG analysis, cardiac biomarker testing, and 2D echocardiography. All patients were followed through their hospital stay and for 30 days post-acute myocardial infarction, monitoring for complications and outcomes.