Effect of different blood transfusion modes during placenta previa cesarean section on blood routine and maternal and neonatal outcomes / 国际检验医学杂志

Objective To compare the application values of different blood transfusion modes in placenta previa cesarean section.Methods The clinical data in 82 pregnant women with placenta previa undergoing cesarean section in our hospital from February 2013 to January 2016 were collected.The patients were divided into the autologous group (autologous blood stored blood transfusion,n=42) and allogeneic group (allogeneic blood transfusion,n=40) according to different blood transfusion modes.The changes of blood routine indexes such as hemoglobin (Hb),platelet count (PLT),hematocrit (Hct),white blood cell count (WBC) and red blood cell count (RBC) in the two groups before and after operation were recorded.Postpartum blood lossb amounts,autologous and allogeneic blood transfusion volume were compared between the two groups.The pregnant outcomes were observed,and the incidence rates of blood transfusion complications were statistically analyzed.Results (1)The accumulative blood loss volume and allogeneic blood transfusion volume in the autologous group were significantly lower than those in the allogeneic group (P0.05);(4)The total incidence rate of complications in the autologous group was significantly lower than that in the allograft group (P<0.05).Conclusion Adopting autologous blood stored blood transfusion scheme during cesarean section in women with placenta previa has no negative effect on maternal and neonatal outcomes,meanwhile which can reduce the incidence of transfusion complications,is safe and feasible.

Family Ecosystems of High School Students at Different Levels of Tolerance of Perceived Learning Stress / 中国心理卫生杂志

Objective: To find out the features of family ecosystems of high school students at different levels of tolerance of perceived learning stress. Methods:Using several questionnaires such as CBCL, EMBU etc to collect data on three main family sub-ecosystems: parental subsystem, family social environmental subsystem and children's subsystem. Results: Of 170 subjects, there were 130 who reported they could perceive learning stress. Of the 130 students, there were 30 with mental or behavioral problems (low tolerance group), while the other 100, a large portion, functioning very well without mental or behavioral problems (high tolerance group). Compared with low tolerance group, high tolerance group had lower scores in father's punishment (17.9?5.1/20.5?4.6, t=-2.51, P