Intracoronary ultrasound assessment late after the arterial witch operation for transposition of the great arteries

ABSTRACT

This research was undertaken to assess the status of the coronary wall morphology late after the arterial switch operation (ASO) for transposition of the great arteries employing intravascular ultrasound (IVUS). BACKGROUND Long-term patency of the reimplanted coronary arteries is a key issue after ASO. Follow-up studies have demonstrated coronary obstruction in up to 8% of patients that may be related to progressive fibrocellular intimal thickening. METHODS Twenty-two asymptomatic children were