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Surgical repair of a right coronary artery fistula to the left ventricle

Published:January 07, 2023DOI:https://doi.org/10.1016/j.jccase.2022.12.010

      Abstract

      A 17-year-old male complained of exertional dyspnea and was referred to our hospital after he was diagnosed with a right coronary artery fistula into the left ventricle. Surgical repair was considered to improve the symptoms. We identified the distal end of the right coronary artery entering the left ventricle under cardiopulmonary bypass with cardiac arrest. The fistula was transected at the distal end of the right coronary artery and closed at both ends without incision of the left ventricle. Coronary angiography revealed the patency of the right coronary artery and the peripheral branches four months after surgery. The coronary computed tomography four years and four months after operation showed no pseudoaneurysm formation, no thrombosis, and subsequent regression of the dilated right coronary artery.

      Learning objective

      The coronary artery fistula is a rare congenital anomaly, and the treatment strategies of the coronary fistula are controversial. We performed ligation of the coronary fistula under cardiac arrest on cardiopulmonary bypass without incision of the left ventricle. This strategy may contribute to the accurate identification and ligation of the fistula without pseudoaneurysm formation.

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