Intraoperative fluorescence angiography after arterial switch operation

A full-term neonate with d-transposition of the great arteries and an intact ventricular septum was referred to our institution. We successfully performed an arterial switch operation with the LeCompte maneuver. Intraoperative transesophageal echocardiography revealed moderate mitral regurgitation (MR) immediately after weaning from cardiopulmonary bypass. Indocyanine green, diluted 20 times with saline and blood, was injected through the arterial line to perform contrast imaging and check for problems with the reconstructed coronary arteries. Clear coronary visualization was achieved. MR improved over time and had almost disappeared by the time the patient returned to the intensive care unit.