Application Of Dilution Autotransfusion In Cesarean Section Of Placenta Previa

Objective:To investigate the effect of dilution autotransfusion in caesarean section of placenta previa.Methods:Retrospective analysis on January 1,2014 to January 31,2019 in youjiang national medical school affiliated hospital maternity hospital,a total of 101 patients with placenta previa cesarean section surgery,dilutive adopted according to whether intraoperative autologous blood transfusion(Acute Normovolemic Hemodilution,ANH)is divided into two groups,using diluted autotransfusion group(hereinafter referred to as the ANH group)48cases and not using diluted autotransfusion group(hereinafter referred to as the ANH group)53.The general conditions of the two groups were compared.Intraoperative blood loss,allogeneic blood transfusion rate and average allogeneic blood transfusion volume(including the day after surgery)in the two groups;Perioperative blood test indexes of the two groups were White Blood Cells(WBC),High Sensitivity C-reactive Protein(hsCRP),Hemoglobin(Hb),Hematocrit(HCT),Platelet(PLT)and Fibrinogen(FIB).Maternal and infant pregnancy outcomes of the two groups were as follows: average postoperative hospitalization time,postpartum hemorrhage rate,postoperative ileus rate,hysterectomy rate,postoperative transfer to Intensive care unit(ICU)rate,Apgar score of 1 minute and 5 minutes after birth,and transfer to neonatal intensive care unit(NICU)rate.Results:(1)The allogeneic blood transfusion rate and mean allogeneic red blood cell and plasma transfusion volume in ANH group were significantly lower than those in non-anh group,with statistically significant differences(P<0.05).(2)there was no statistically significant difference in intraoperative blood loss between the two groups(P>0.05).(3)comparison of allogenic cryoprecipitation infusion volume between the two groupsshowed no statistically significant difference(P>0.05).(4)there was no statistically significant difference between the two groups in the average postoperative hospital stay,postoperative ileus rate,hysterectomy rate,postpartum hemorrhage rate,and ICU transfer rate(P>0.05).(5)there was no significant difference in Apgar score and NICU transfer rate between the two groups(P > 0.05).Conclusion:(1)ANH in reducing the allogeneic transfusion rate and allogeneic blood dosage at the same time,can reduce the intraoperative loss of red blood cells,platelets,fibrinogen content.(2)ANH does not increase intraoperative bleeding in patients,does not produce inflammation and blood transfusion reaction,does not affect the patient postoperative recovery and maternal and child pregnancy outcome.(3)ANH is an effective,safe blood transfusion technology,worthy of wide clinical promotion and application.