UHS is the Tier 1 centre within the Wessex and Thames Valley CHD Operational Delivery Network (ODN), providing the full spectrum of congenital cardiac procedures. Sub-specialty surgery is provided by dedicated teams, including but not limited to surgery for functional single ventricle, pulmonary atresia and MAPCAs, congenitally corrected transposition, Ebstein’s anomaly, advanced aortic surgery, including the Ross procedure and its modifications, and the full range of surgical procedures for the institution and support of AV and VV ECMO, cardiac emergencies and cardiac trauma in the paediatric population.