Perioperative blood loss in pediatric cardiac surgery is related to the significant increase of blood transfusion,which leads to adverse events of blood transfusion and worsens the prognosis.Perioper-ative blood protection has important clinical significance in reducing adverse reactions to blood transfusion and alleviating blood supply tension.Cardiopulmonary bypass plays an important role in the management of perioperative blood protection practices.This article reviews the latest progress for blood protection in perfu-sion and blood product infusion strategies during cardiopulmonary bypass,providing reference for physicians to transfuse blood in children undergoing cardiopulmonary bypass during pediatric heart surgery.
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