Abstract: Objective：The aim of this article is to determine the feasibility and safety of intraoperative cell salvage (IOCS) technology in obstetric hemorrhage during cesarean section. Methods：Data of intraoperative blood salvage in the Army Medical University affiliated Xinqiao Hospital from January 2013 to December 2017 were analyzed. A total of 571 patients were included in this study, who were diagnosed for placenta previa and underwent cesarean section. 264 women who signed informed consent for accepting IOCS and received re-infusion were included in the observation group, 307 women signed informed consent allogeneic transfusion when necessary were included in the control group. Baseline demographic data, laboratory and perioperative findings, transfusion adverse effects were analyzed. Results：In the observation group, blood loss was more than that in the control group (Z=-6.993, P=0.000). The proportion of cases with total blood transfusion ≥2 000 mL, transfusion of plasma, cryoprecipitate, and platelet were more than those in the control group, but the amount of erythrocyte transfusion was less than those in the control group(P＜0.05). However, there were no significant differences regarding of the days of postoperative ICU the preoperative and postoperative Hb, HCT, PLT levels(P＞0.05). Postoperative complications within 24 hours were no significant differences between the two groups (P＞0.05). Conclusions：The strategy of intraoperative cell salvage was feasible and safe for women with placenta previa undergoing cesarean section.

Key words: Blood transfusion, autologous, Placenta previa, Cesarean section, Blood loss, surgical, Intraoperative cell salvage