Transposition of great arteries with aortopulmonary window: an unusual cause of prepared left ventricle at 11 months.

In patients with transposition of great arteries, presence of aortopulmonary window is very uncommon and associated with high morbidity and mortality. This report describes the case of an 11-month-old female patient in which aortopulmonary window was restrictive, and protected the patient from developing pulmonary vascular disease. The patient underwent successful arterial switch and repair of aortopulmonary window.