Fig. 3

Nomogram for the preoperative prediction of perioperative red blood cell transfusion (PRT) in children undergoing cardiac surgery with cardiopulmonary bypass (CPB). CCHD, cyanotic congenital heart disease; CPB, cardiopulmonary bypass; PRT, perioperative red blood cell transfusion; STAT, Society of Thoracic Surgeons-European Association for Cardio-Thoracic Surgery