Arterial switch operation for Taussig-Bing anomaly

Objective To report the experience of the arterial switch operation(ASO) for Taussig-Bing anomaly and late outcomes. Methods From January 2001 to December 2015, 57 patients were underwent arterial switch operation for Taussig-Bing anomaly in Fudan university affiliated children' s hospital cardiac center, Median age and weight at operation was 63(37.5-88.5)days, 4.1(3.4-5.0)kg, respectively.29 patients with Arch anomalies(50.9%), 23 patients with unusual coronaries(40.3%), according to have arch anomaly or not and surgery time, dividing the patients into two groups, group A(have, n=29)and group B(not have, n=28), earlier experience into group 1(2001-2008, n=27), later experience into group 2(2009-2015, n=30), respectively . Results The Mortality was12.3%, the mortality of group A and group B was 13.8%, 10.7%(P>0.05), group 1 and group 2 was 22.2%, 3.3%(P<0.05) respectively, follow up was complete in 47 patients with a mean follow-up of(6.2±3.5) years , three patients lost, there was no late mortality, the actual survival at 1, 5year was 87%, 87%, respectively. Reintervention was required in 10 patients(21.3%), the aorta-PA valve diameter ratio was a risk factor for reintervention(group A P=0.02, group B P=0.04) , and 1, 2, 5year free of reintervention was 95.6%, 86.6%, 77.2%, respectively. Conclusion The ASO approach can be applied to Taussig-Bing anomaly with acceptable mortality , and it is the procedure of choice at our institution. One stage to repair TBA with aortic arch abnormalities did not influence outcomes. The aorta-PA valve diameter ratio<0.5 was a risk factor for reintervention. Key words: Great vessel transposition; Cardiac surgical procedures