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随着环境污染的加重和人均寿命的延长,肿瘤发病率越来越高,因肿瘤而手术的患者也越来越多。肿瘤组织(特别是恶性肿瘤)血流丰富,手术常引起大量出血而导致急性失血性贫血。输血能迅速提高患者的血红蛋白含量和血液携氧能力,因此肿瘤患者手术中常需输入异体血以纠正术中急性失血,改善组织氧供。据2003年Hansen的不完全统计,约1/3的库血用于肿瘤切除手术,且这一比例还不断上
With the aggravating of environmental pollution and the extension of average life expectancy, the incidence of tumors is getting higher and higher, and the number of patients who undergo surgery for tumors is also increasing. Tumor tissue (especially malignant tumors) is rich in blood flow, which often leads to massive hemorrhage leading to acute hemorrhagic anemia. Blood transfusion can rapidly increase the hemoglobin content and blood oxygen carrying capacity of patients, so patients with tumor often need to enter allogeneic blood to correct the acute intraoperative blood loss and improve tissue oxygen supply. According to Hansen’s incomplete statistics in 2003, about one-third of the blood was used for resection of the tumor, and this proportion is still on the rise