ABSTRACT
Objective:To investigate the clinical application effects of leukocyte-filtered blood transfusions.Methods:A total of 120 patients with massive bleeding who received transfusions of a large amount of blood in the First People's Hospital of Yongkang, China from January 2017 to December 2018 were included in this study. They were divided into a control group (even numbers) and an observation group (odd numbers) according to registration numbers. The control group was subjected to direct blood transfusion. The observation group was given leukocyte-filtered blood transfusions. Coagulation function index, hemorheological index, cellular immune function, immunoglobulin level, body temperature, and the incidence of febrile non-hemolytic transfusion reactions were compared between the two groups.Results:After blood transfusions, prothrombin time, activated partial thromboplastin time, thrombin time in the observation group were (12.39 ± 1.41) seconds, (26.84 ± 6.47) seconds, and (14.32 ± 3.14) seconds, which were significantly shorter than those in the control group [(15.54 ± 2.03) seconds, (34.23 ± 7.59) seconds, (20.98 ± 4.27) seconds, t = 9.872, 5.740, 9.733, all P < 0.05]. Hematocrit, erythrocyte sedimentation rate, and plasma viscosity in the observation group were (39.28 ± 2.17)%, (25.97 ± 4.10) mm/h, and (2.19 ± 0.45) mp·s respectively, and those in the control group were (34.64 ± 4.52)%, (21.85 ± 3.64) mm/h, and (1.76 ± 0.42) mp·s respectively. There were significant differences in these indices between the two groups ( t = 9.87, 5.74, 9.73, all P < 0.05). There were significant differences in CD 3+, CD 4/CD 8, immunoglobulin G, immunoglobulin A, and immunoglobulin M between before and after blood transfusions in the control group ( t = 5.99, 5.91, 5.77, 5.80, 5.85, all P < 0.05). There were no significant differences in these indices between before and after blood transfusions in the observation group (all P > 0.05). After blood transfusions, body temperature was significantly lower in the observation group than in the control group [(36.58 ± 0.50) ℃ vs. (37.16±0.57)℃, t = 5.95, P < 0.05]. The incidence of febrile non-hemolytic transfusion reactions was significantly lower in the observation group than in the control group (1.67% vs. 13.33%, χ2 = 5.88, P < 0.05). Conclusion:Leukocyte-filtered blood transfusions can effectively restore the patient's body temperature to normal, improve coagulation function index and hemorheological index, reduce the impact of blood transfusions on the patient's immune function, and reduce febrile non-hemolytic transfusion reactions.
ABSTRACT
Objective To investigate the changes of leukocyte derived cytokines,IL 1?,IL 6,IL 8,and TNF ?,in platelets concentrates (PCs) during storage,and to study the effect of leukodepletion on cytokine concentration in PCs and the incidence rate of febrile non hemolytic transfusion reaction (FNHTR).Methods 8 bags of apheresed PCs from 8 voluntary donors were each divided into two identical portions (A and B).Group A underwent leukocyte filtration,while group B did not.Then both groups were stored at 22℃ for 5 days.The levels of cytokines (pg/ml),white blood cell (WBC) count and platelet count in both groups were tested on the day 0,3 and 5 during storage.In clinic,240 patients were randomly divided into two groups with 120 in each group to receive non filtered or filtered PCs (1 bag/patient).The incidence of FNHTR was investigated.Paired t test and ? 2 test were used in data analysis. Results There was a significant positive correlation between the content of WBC in PCs and the level of cytokines.On the 5th day of storage,residual WBC in leukoreduced PCs were less than 1?10 6/PC,the levels of cytokines remained the same as those on 0;however,WBC in non filtered PCs was (351?81)?10 6/PC,and the levels of IL 1??IL 6?IL 8 and TNF ? were 105.0pg/ml,269.0pg/ml,1840pg/ml and 42.0pg/ml respectively and increased 18 ( P
ABSTRACT
Objective:To explore the change of membrane protein composition of red blood cells after the blood being filtered by leukocyte filter.Methods:A total of 400ml blood from 20 healthy donors were equally divided into control group and filtered group according to the paired design.SDS-PAGE electrophoresis was done for the red blood cell membrane protein of both groups.Bandscan protein analysis software was used to analyze the composition of membrane protein.Fluorescence degree of polarization was detected by fluorescence polarization method and membrane flowability was counted.Plasma concentration of free hemoglobin(FHb) was detected weekly.Results:The band Ⅰ,Ⅱ and Ⅶ parotein of membrane skeleton of the filtered group decreased significantly compared with those of the control group(P﹤0.01),and the fluorescence degree of polarization and microviscosity of the filtered group was higher(P﹤0.01).There was significant difference of plasma FHb between filtered group and control group at each week except week 0,and that of the filted group was higher(P﹤0.01).Conclusion: Leukocyte filter can bring damage to erythrocyte membrane protein composition.Membrane microviscosity and plasma concentration of free hemoglobin increase and membrane flowability decreases.