Coronary Artery Anomalies in D-Transposition of the Great Artery Following Arterial Switch Operation

Background: The survival rate of patients following arterial switch operation (ASO) exceeds 95%, but coronary artery anomalies (CAA) contribute to a 2% incidence sudden cardiac arrest later in life. Therefore, we aimed assess abnormal findings arteries post-ASO patients. Methods: Coronary computed tomography angiography (CCTA) is performed on who meet institutional criteria. Intraoperative patterns were retrospectively reviewed and categorized using the Leiden classification system. detected by CCTA associations with compromise explored. Results: Forty-three had median age 15.6 years (12–21.3 years) included study. Unusual identified 20 (46%) before ASO. 25 CAA 22 (eleven prepulmonic course, nine interarterial three acute take-off angle, two significant stenosis). Postoperative was more common unusual (90% vs. 17.4%; p