Workplace AED resuscitation of a patient with a rare congenital anomalous coronary circulation.

We describe the case of a 44-year-old male with anomalous pulmonary artery origin of the left main coronary artery who was successfully resuscitated after sudden cardiac death with use of an automated external defibrillator (AED) in the workplace. The diagnosis was made on emergency cardiac catheterization and treated with surgical intervention. This case illustrates: 1) that congenital anomalies, although rare, must continue to be considered in the differential diagnosis of sudden cardiac death, and 2) that AEDs in the workplace can be a crucial, lifesaving intervention in the time-dependent condition of sudden cardiac death.