Objective To evaluate the effect of point-of-care hemoglobin/hematocrit(POC HGB/HCT) devices and intraoperative blood salvage on the amount of perioperative allogeneic blood transfusion and blood conservation in clini...Objective To evaluate the effect of point-of-care hemoglobin/hematocrit(POC HGB/HCT) devices and intraoperative blood salvage on the amount of perioperative allogeneic blood transfusion and blood conservation in clinical practice. Methods A total of 46 378 medical records of 22 selected hospitals were reviewed. The volume of allogeneic red blood cell and plasma, number of patients transfused, number of intraoperative autologous blood salvage, total volume of autologous blood transfusion, and amount of surgery in the year of 2011 and 2013 were tracked. Paired t-test was used in intra-group comparison, while t-test of two isolated samples carried out in inter-group comparison. P<0.05 was defined as statistically significant difference. Results In the hospitals where POC HGB/HCT device was used(n=9), the average allogeneic blood transfusion volume per 100 surgical cases in 2013 was significantly lower than that in 2011(39.86±20.20 vs. 30.49±17.50 Units, t=3.522, P=0.008). In the hospitals without POC HGB/HCT meter, the index was not significantly different between 2013 and 2011. The average allogeneic blood transfusion volume was significantly reduced in 2013 than in 2011 in the hospitals where intraoperative autologous blood salvage ratio [autologous transfusion volume/(autologous transfusion volume+allogeneic transfusion volume)] was increased(n=12, t=2.290, P=0.042). No significant difference of the above index was found in the hospitals whose autologous transfusion ratio did not grow. Conclusion Intraoperative usage of POC HGB/HCT devices and increasing autologous transfusion ratio could reduce perioperative allogeneic blood transfusion.展开更多
目的探讨血清促红细胞生成素(erythropoietin,EPO)、红细胞(RBC)相关参数水平,为临床应用重组人红细胞生成素(recombinant human erythropietin,rHuEP0)治疗慢性呼吸衰竭贫血检测提供理论数据。方法收集25例慢性呼吸衰竭患者...目的探讨血清促红细胞生成素(erythropoietin,EPO)、红细胞(RBC)相关参数水平,为临床应用重组人红细胞生成素(recombinant human erythropietin,rHuEP0)治疗慢性呼吸衰竭贫血检测提供理论数据。方法收集25例慢性呼吸衰竭患者的血清,应用酶联免疫法检测EPO水平和RBC相关参数水平,并将其与20例正常对照进行比较,以直线相关分析EPO水平和RBC相关参数之间的关系。结果慢性呼吸衰竭贫血患者血清中EPO水平为99.70±28.90mIU/ml,显著高于正常对照组的21.5±5.26mIU/ml,二者比较差异有统计学显著性意义(t=2.67,P〈0.01)。两组Hb,HCT水平差异有统计学显著性意义(t=2.52,2.23,均P〈0.01),RBC两组差异有统计学意义(t=2.12,P〈0.05)。患者的血清EPO水平与RBC,Hb,HCT值之间呈负相关关系(均P〈0.01)。结论呼吸衰竭贫血患者血清EP0水平可反应性增高,但个体间有差异,应根据各种检测数据制定治疗方案,动态检测血清EPO水平,对呼吸衰竭贫血的治疗以及预后判断有重要的临床参考价值。展开更多
目的探讨不同渗透压下红细胞体积和溶血情况的变化,为优化人红细胞保护剂的添加和洗涤方案、冷冻干燥程序设定等方面提供参考依据。方法以梯度浓度的氯化钠溶液提供不同的渗透压环境,加入储存4周的全血,离心法测红细胞压积(Hct)、显微...目的探讨不同渗透压下红细胞体积和溶血情况的变化,为优化人红细胞保护剂的添加和洗涤方案、冷冻干燥程序设定等方面提供参考依据。方法以梯度浓度的氯化钠溶液提供不同的渗透压环境,加入储存4周的全血,离心法测红细胞压积(Hct)、显微镜下记录红细胞形态和直径、用冰点渗透压仪测定上清的渗透压、测定上清血红蛋白(Hb)含量,经计算得到不同渗透压下的红细胞体积及溶血率差异。结果在低渗环境下,当渗透压(m Osm/kg)为148、154、158、171、191和236时,溶血率(%)分别为87.3±4.3、79.4±6.7、68.5±6.6、30.2±2.8、6.6±1.0和2.5±0.8,红细胞平均体积(MCV)(f L)分别为184.1±32.7、216.4±62.9、185.2±27.3、151.8±6.8、122.4±3.7和109.3±2.4;在高渗环境下,当渗透压(m Osm/kg)为810、1 073、2 460和3 033时,溶血率(%)分别为2.1±0.7、2.5±0.6、25.2±8.7和55.8±13.8,MCV(f L)分别为58.1±1.9、60.6±2.8、74.5±4.8和80.1±13.9;在等渗环境,溶血率为(1.9±0.8)%、MCV为(94.9±1.08)f L。结论渗透压从低渗到高渗变化过程中,红细胞的体积逐渐减小,溶血率先降低后升高,当渗透压为160 m Osm/kg时,红细胞体积达到上限160 f L,溶血率增加至68%;当渗透压为800 m Osm/kg时,红细胞体积达到下限为60 f L,溶血率为2%。为了降低细胞溶血率,红细胞体积变化宜<1.68倍、>0.68倍原体积。展开更多
文摘Objective To evaluate the effect of point-of-care hemoglobin/hematocrit(POC HGB/HCT) devices and intraoperative blood salvage on the amount of perioperative allogeneic blood transfusion and blood conservation in clinical practice. Methods A total of 46 378 medical records of 22 selected hospitals were reviewed. The volume of allogeneic red blood cell and plasma, number of patients transfused, number of intraoperative autologous blood salvage, total volume of autologous blood transfusion, and amount of surgery in the year of 2011 and 2013 were tracked. Paired t-test was used in intra-group comparison, while t-test of two isolated samples carried out in inter-group comparison. P<0.05 was defined as statistically significant difference. Results In the hospitals where POC HGB/HCT device was used(n=9), the average allogeneic blood transfusion volume per 100 surgical cases in 2013 was significantly lower than that in 2011(39.86±20.20 vs. 30.49±17.50 Units, t=3.522, P=0.008). In the hospitals without POC HGB/HCT meter, the index was not significantly different between 2013 and 2011. The average allogeneic blood transfusion volume was significantly reduced in 2013 than in 2011 in the hospitals where intraoperative autologous blood salvage ratio [autologous transfusion volume/(autologous transfusion volume+allogeneic transfusion volume)] was increased(n=12, t=2.290, P=0.042). No significant difference of the above index was found in the hospitals whose autologous transfusion ratio did not grow. Conclusion Intraoperative usage of POC HGB/HCT devices and increasing autologous transfusion ratio could reduce perioperative allogeneic blood transfusion.
文摘目的探讨血清促红细胞生成素(erythropoietin,EPO)、红细胞(RBC)相关参数水平,为临床应用重组人红细胞生成素(recombinant human erythropietin,rHuEP0)治疗慢性呼吸衰竭贫血检测提供理论数据。方法收集25例慢性呼吸衰竭患者的血清,应用酶联免疫法检测EPO水平和RBC相关参数水平,并将其与20例正常对照进行比较,以直线相关分析EPO水平和RBC相关参数之间的关系。结果慢性呼吸衰竭贫血患者血清中EPO水平为99.70±28.90mIU/ml,显著高于正常对照组的21.5±5.26mIU/ml,二者比较差异有统计学显著性意义(t=2.67,P〈0.01)。两组Hb,HCT水平差异有统计学显著性意义(t=2.52,2.23,均P〈0.01),RBC两组差异有统计学意义(t=2.12,P〈0.05)。患者的血清EPO水平与RBC,Hb,HCT值之间呈负相关关系(均P〈0.01)。结论呼吸衰竭贫血患者血清EP0水平可反应性增高,但个体间有差异,应根据各种检测数据制定治疗方案,动态检测血清EPO水平,对呼吸衰竭贫血的治疗以及预后判断有重要的临床参考价值。
文摘目的探讨不同渗透压下红细胞体积和溶血情况的变化,为优化人红细胞保护剂的添加和洗涤方案、冷冻干燥程序设定等方面提供参考依据。方法以梯度浓度的氯化钠溶液提供不同的渗透压环境,加入储存4周的全血,离心法测红细胞压积(Hct)、显微镜下记录红细胞形态和直径、用冰点渗透压仪测定上清的渗透压、测定上清血红蛋白(Hb)含量,经计算得到不同渗透压下的红细胞体积及溶血率差异。结果在低渗环境下,当渗透压(m Osm/kg)为148、154、158、171、191和236时,溶血率(%)分别为87.3±4.3、79.4±6.7、68.5±6.6、30.2±2.8、6.6±1.0和2.5±0.8,红细胞平均体积(MCV)(f L)分别为184.1±32.7、216.4±62.9、185.2±27.3、151.8±6.8、122.4±3.7和109.3±2.4;在高渗环境下,当渗透压(m Osm/kg)为810、1 073、2 460和3 033时,溶血率(%)分别为2.1±0.7、2.5±0.6、25.2±8.7和55.8±13.8,MCV(f L)分别为58.1±1.9、60.6±2.8、74.5±4.8和80.1±13.9;在等渗环境,溶血率为(1.9±0.8)%、MCV为(94.9±1.08)f L。结论渗透压从低渗到高渗变化过程中,红细胞的体积逐渐减小,溶血率先降低后升高,当渗透压为160 m Osm/kg时,红细胞体积达到上限160 f L,溶血率增加至68%;当渗透压为800 m Osm/kg时,红细胞体积达到下限为60 f L,溶血率为2%。为了降低细胞溶血率,红细胞体积变化宜<1.68倍、>0.68倍原体积。