OPERATIVECORONARY ANATOMY IN TAUSSIG BING HEART ANOMALY

Objectives: This study was conducted to describe the anatomical morphologies of the coronary arteries in Taussig-Bing heart anomaly. Methods: From January 2010 to December 2018, 72 consecutive patients underwent total correction for the Taussig Bing heart anomaly at Vietnam National Children's Hospital. The coronary artery morphology of this patient’s group was visually evaluated during arterial switch operations. Results: Consider usual coronary arteries were 1LCx2R (the left anterior descending and the circumflex originated from sinus 1, the right coronary artery from sinus 2). Unusual coronary arteries were observed in 50 of the 72 cases, providing a frequency of 69.5%. They were the circumflex originating from the sinus 2 (1L2RCx: 25%); the left anterior descending, the right coronary artery, and the circumflex from a single sinus (1LRCx: 5.6%; 2LRCx: 19.4%); right artery coronary from sinus 1 (1R2LCx: 11.1%). The coronary with intramural course presented in 5 patients (7%). The hospital death after arterial switch operation for total repair of the Taussig Bing heart anomaly was 13.9%. Conclusion: Patients with the Taussig Bing Heart anomaly have a high frequency of unusual coronary arteries. The congenital cardiac surgeons should consider this frequency for better management of the patients while the preoperative assessment has not much information of the coronary arteries anatomy.