Surgical treatment of transposition of the great arteries with bilateral intramural coronary arteries.

A 33-day-old neonate with transposition of the great arteries, ventricular septal defect, and intramural course of both coronary arteries underwent successful arterial switch repair. At a follow-up time of 36 months, left ventricular function and coronary arterial anatomy at angiography were normal. Optimal treatment of such rare coronary arterial abnormality may allow functional and anatomic results comparable to usual coronary arterial patterns in transposition of the great arteries.