Data gathered included the total allogeneic transfusion requirement for each patient, preoperatie and postoperatie hemoglobin leels, and operatie time. 收集的數據包括病人需要的同種異體輸血量，術中術后的血紅蛋白水平和手術時間。
Blood transfusion is required in most patients.The known risks of transfusion reactions and transmissible infection from homologous donor blood transfusions are significant. 大多數病人需輸血，但存在因異體輸血造成輸血反應和傳播感染的危險。
