How to Report Postoperative Outcomes After a Paediatric Cardiac Surgery ?

Inclusion criteria: * Minor patients, under the age of 18 * operated at the HUS between 01/01/2010 and 03/31/2022 for transposition surgery of the great vessels (arterial switch) with or without CIV; or isolated ventricular septal closure * Child or holders of parental authority who do not object to the reuse of their data for scientific research purposes. Exclusion criteria: * Transposition surgery of the great vessels associated with coarctation of the aorta, pulmonary stenosis or any other complex malformation * Surgical technique different from the arterial switch for the transpositions of the great vessels * Closure of interventricular communication associated with another complex heart malformation (tetralogy of Fallot, atrioventricular canal, right ventricle with double outlet, etc.) * Child or holders of parental authority who have expressed their opposition to the reuse of their data for scientific research purposes.