Comparison Between the In-Hospital Outcomes of Patients Presented With Acute Anterior Wall ST-Segment Elevation Myocardial Infarction With and Without a Right Bundle Branch Block

Patients with AW-STEMI and RBBB had significantly worse in-hospital outcomes, including higher mortality, increased risk of cardiogenic shock, and a greater prevalence of arrhythmias. Although cardiac arrest, post-MI angina, and CHB were more frequent in RBBB patients, these differences were not statistically significant. Primary PCI was associated with a lower mortality risk in RBBB patients.