Background This study was conducted to evaluate the surgical results of the arterial switch operation for Taussig‐Bing variants, at a single institution in a lower‐middle income country. Methods Between June 2010 and December 2018, all consecutive patients diagnosed with Taussig‐Bing variants who underwent the arterial switch operation and ventricular septal defect closure were included in the study. Results A total of 72 patients of Taussig‐Bing variants underwent arterial switch operation and ventricular septal defect closure. There were 10 early deaths (13.9%) and 2 late deaths (2.8%). Intraoperative ventricular septal defect enlargement (hazard ratio [HR] 7.23, 95% confidence interval [CI] 3.1294–16.7167; p < .001), secondary aortic cross‐clamping (HR 28.38, 95% CI 4.8427–166.3484; p < .001), postoperative pneumonia (HR 5.64, 95% CI 1.2724–24.9917; p = .023), and postoperative sepsis (HR 5.28, 95% CI 1.3512–20.6553; p = .017) were risk factors for overall mortality by competing risk analysis. Sixty patients (83.3%) required septoparietal trabeculation division/resection during the arterial switch operation in an attempt to avoid right ventricular outflow tract obstruction. The reoperation rate for right ventricular outflow tract obstruction at last follow up was 6% (three patients). The estimated freedom from reoperation for right ventricular outflow tract obstruction at 1, 5, and 9 years was 98.3%, 91.9%, and 91.9%, respectively. Conclusions The results of arterial switch operation for Taussig‐Bing variants were satisfactory in the operative setting of a lower‐middle income country, and performing extensive septoparietal trabeculation division might reduce the reintervention rate for right ventricular outflow tract obstruction in these patients.

Right-sided aortic arch is a rare anatomic variation of aortic arch anomaly, which may coexist with or without other cardiac defects. We report an extremely rare case of right-sided aortic arch with a right ductus arteriosus and isolation of the left brachiocephalic trunk, without other associated intracardiac lesions. We describe the successful surgical management of this anomaly in a neonate who had bilateral choanal atresia without DiGeorge syndrome or Down syndrome. However, our patient had clinical signs of hearing loss in the postoperative follow-up period.

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