Sudden Cardiac Death with Left Main Coronary Artery Occlusion in a Patient Whose Presenting ECG Suggested Brugada Syndrome

This article describes a patient who died suddenly during Holter ECG monitoring. A ventricular premature systole with an extremely short coupling interval of 240 ms was immediately followed by torsades de pointes, soon degenerating into ventricular fibrillation. Retrospective survey of the patient's medical records revealed an incomplete right bundle branch block (iRBBB) configuration with fluctuating saddle back-type ST elevation in leads V₁ and V₂, these suggesting Brugada syndrome. Autopsy showed complete thrombotic occlusion of the left main coronary artery.