... Research Paper Maternal Outcomes According to Placental Position in Placental Previa Dong Gyu Jang, Ji Sun We, Jae Un Shin, Yun Jin Choi, Hyun Sun Ko, In Yang Park, Jong Chul Shin Department ... parity, delivery methods, maternal past history (miscarriage, uterine surgery), diseases asso-ciated with pregnancy (myoma, endometriosis), pre-natal ultrasonography and the findings of surgery ... reviewed in all patients. To compare maternal outcomes, the hemoglobin level of prior to surgery, 1 day after surgery, and 3 days after surgery, the amount of transfusion during surgery, estimated...