목적: Our objective was to evaluate the effect of combined use of transient bilateral ovarian artery clamping, uterine artery ligation, and Bakri balloon tamponade during cesarean section in women with placenta previa. 방법: We performed a retrospective cohort study of all cesarean deliveries performed due to placenta previa from April 2013 until June 2016 at Chonbuk National University Hospital. Charts were reviewed to determine the amount of RBC transfusion, degree of blood loss and incidence of postpartum hysterectomy and uterine artery embolization (UAE) between conventional method and combined technique to control hemorrhage during cesarean section for placenta previa. Patients with unsortable technique were excluded. The outcome was analyzed using independent t-test. 결과: There was a total of 118 cesarean deliveries for placenta previa during the study period, with two groups of 100 patients using conventional hemostatic method and 17 patients using combined hemostatic technique. There were not different between two groups in the mean amount of PRC transfusion during operation (0.88 ± 2.12 unit vs. 0.24 ± 0.66 units, respectively, p=0.22) and the index of blood loss (0.22 ± 0.13 vs. 0.23 ± 0.14, respectively, p=0.78). The incidence of postpartum hysterectomies (0.05 ± 0.22 vs. 0 ± 0, respectively, p=0.03) and postpartum care (0.13 ± 0.46 vs. 0 ± 0, respectively, p=0.01) for continuous bleeding after cesarean section were significantly low in combined technique group. 결론: Our findings show that utilization of the combined technique (transient bilateral ovarian artery clamping, uterine artery ligation, and Bakri balloon tamponade) during cesarean section for placenta previa is associated with a decreased rate of postpartum hysterectomy and additional hemostatic procedure after cesarean section.