Observation of the Efficacy of Haemonetics-5 Cell Saver System on Washing the Bacteria-Contaminated Blood. 田芳龄 岳云 杜小玲 Tian Fangling, Yue Yun, Du Xiaoling.Department of Anesthesiology,Beijing Red Cross Chaoyang Hospital, Affliatedof Capital university of Medical Science, Beijing 100020, China.
Abstract Objective: To observe the efficacy of Haemonetics-5 cell saver in washing the bacteria-contaminated blood. Methods: Fifteen patients undergoing major surgery were choosen. The accumulative blood from the operation field was collected with the Cell Saver. After washing, 5 ml of the blood was taken to culture (sample Ⅰ), and 200~300 ml of the blood was taken to add with staphylococcus aureus, bacillus pyocyaneus and colon bacillus. Then the contaminated blood was washed with 1000 ml of normal saline (group Ⅰ) and 1500 ml of normal saline (group Ⅱ) respectively, 5 ml of the washed blood (sample Ⅱ) was taken from each group to culture. Results: The bacteriological cultures in sample Ⅰ were all negative with bateri. No staphylococcus aureus and bacillus pyocyaneus were seen after cultured in sample Ⅱ of group Ⅰ and group Ⅱ. But the colon bacillus was positive in sample Ⅱ of all the patients. Conclusion: It seems impossible that all microorganisms are cleaned from the contaminated blood with Haemonetics-5 Cell Saver and the washing efficacy can-not be improved by increasing the lotion volume. Key Words: Cell Saver; Washing; Blood,contaminated; Bacteriological culture
<?xml:namespace prefix = o ns = "urn:schemas-microsoft-com:office:office" /> 利用“红细胞回收仪”自体血回输技术可以解决同种异体输血引起的疾病传播、免疫机能下降以及血源不足等一系列难题,也是一种为抢救病人争取时间的有效措施。但是,利用红细胞回收仪处理被细菌污染的血液,其安全值得研究。本实验拟将红细胞回收仪回收的无菌血液,取样加入细菌变成污染血液,然后再用红细胞回收仪洗涤,通过细菌培养观察红细胞回收仪是否能将污染血液中的细菌清洗掉。今将观察结果报告如下,以供临床应用参考。 一、资料和方法 1、一般资料 本文包括15例骨科、宫外孕、闭合性肝脾破裂三种无菌手术病人,术中出血量均在1000 ml以上。采用美国产“Haemonetics-5型红细胞回收仪”回收术野血液,经自动离心、洗涤后回收入储血罐,将大部分血液回输给病人。留取200~300 ml处理血液用作“实验用血”。 2、实验方法 先从实验用血中取出血样5 ml,定为“血样Ⅰ”,注入细菌培养基;其余的血液加入0.5比色浓度2 ml的金黄色葡萄球菌、绿脓杆菌和大肠杆菌,再加入0.9%生理盐水50 ml以使细菌与罐内的血液充分均匀混合,然后再次启动红细胞回收仪清洗血液,清洗液量分别预定为1000ml(定为Ⅰ组,n=10)和1500ml(定为Ⅱ组,n=5)。经过滤过、离心和洗涤后,收集红细胞悬液,取其中5 ml注入细菌培养基,定为“血样Ⅱ”。将血样Ⅰ和血样Ⅱ培养基随即送检验科行BACTEC 9240细菌学培养,细菌培养阳性的血样用法国梅里埃公司API试剂条码进行分离鉴定。
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