Arterial switch operation for transposition of the great arteries and double outlet of right ventricle with subpulmonary ventricular septum defect

Objective To summarize the clinical experience on the arterial switch operation for complex congenital heart disease in recent 3 years in our hospital. Methods Sixty-one patients with complex congenital heart disease received by arterial switch operation from Jan 2000 to May 2003.There were 26 patients with transposition of the great arteries and intact ventricular septum (TGA-IVS),19 patients with transposition of the great arteries and ventricular septal defect (TGA-VSD) and 16 patients with double outlet of right ventricle with subpulmonary ventricular septum defect (Taussig-Bing). Results There were 2 death among TGA-IVS cases,4 deaths among TGA-VSD cases and 4 deaths among Taussig-Bing cases.The total operative mortality was 16%.All patients were followed up 3 months to 3 years. In all patients, the cyanosis disappeared and the physical activities increased obviously. One patients with Taussig-Bing keep moderate mitral valve reguritation unchanged, 2 patients with TGA had pulmonary and aortic supra-valve stenosis with 40 mmHg pressure gradient. One patient with subpulmonary stenosis and residual VSD was re-operated 3 months later.All survivor had good heart function. Conclusions The effect of arterial switch opertion on the treatment of TGA was well accepted in this study.The procedure used in treatment on Taussig-Bing can prevent pulmonary obstruction and avoid the complication of left ventricular outflow tract obstruction caused by intraventicular repair.