Half-turned truncal switch operation for transposition of great arteries with ventricular septal defect and pulmonary regurgitation

A three-month-old girl weighing 4.2 kg, diagnosed with transposition of the great arteries (TGA) and ventricular septal defect (VSD) was referred to us. She had normal-sized pulmonary annulus and moderate pulmonary regurgitation. Because her pulmonary valve was not suitable for systemic circulation due to valvular incompetence, the half-turned truncal switch operation was selected. The postoperative course was uneventful without left or right ventricular outflow obstructions over a year of follow-up. Our report demonstrated that the TGA and VSD with normal pulmonary annulus is not contraindicated for half-turned truncal switch operation.