Study population and data collection
The study was approved by institutional review board of Ospedali Riuniti of Ancona. Patient consent for personal clinical data use was obtained. Patients enrolled for surgery for AAOCA between 2008 and 2021 at Pediatric Cardiac Surgery department of Ospedali Riuniti Ancona were included in the study. A retrospective review of data collected in an institutional database was made. Data recorded included demographics, instrumental, intra-operative surgical data, postoperative hemodynamic and clinical data. Follow-up was made after one, three and six months postoperatively and then yearly. Postoperative follow-up included clinical examination, echocardiography, exercise stress test and computed-tomography scan (at least after six months postoperatively).