ECG findings in acute left main coronary artery thrombosis: a case report and review of the literature.

Acute coronary syndrome due to left main coronary artery (LMCA) thrombosis is a catastrophic event associated with poor prognosis and high in-hospital mortality. Early recognition and emergent revascularization is vital for survival. Unfortunately, the electrocardiographic manifestations of LMCA thrombosis are nonspecific. This report describes the electrocardiogram (ECG) findings in a patient with LMCA thrombosis. A new right bundle branch block (RBBB) pattern, especially when associated with ST elevation in aVR and V1, should raise suspicion of this diagnosis.