心脏外科出血量多、用血量大,其客观原因是手术创面较大,加之血液肝素化、凝血因子、血小板破坏导致凝血功能异常,而患者对贫血耐受能力差,从而使血液需要量增加。对于此类手术,应当针对这些导致血液需要量增加的原因,实施系统的血液保护计划,以尽可能减少异体血需要量。 Cardiac surgical bleeding, with blood, the objective reason is the larger surgical wounds, combined with heparin, coagulation factors, platelet destruction lead to coagulation disorders, and patients with poor tolerance to anemia, so that the blood needs increase . For such surgeries, a systematic blood protection plan should be put in place to address these causes of increased blood requirements to minimize allogeneic blood requirements.