During the period from January 1, 1990 to December 31, 1994, 52 cases which diagnosed and treated as placenta previa among the total delivery of 3,802 in Inje University, Seoul Paik Hospital were reviewed.
1. The incidence of placenta previa was 1 : 73.1 deliveries(1.37%) and types of placenta previa were totalis in 29 cases(55.8%), low lying in 13 cases(25.0%), partialis in 6 cases(11.5%) and marginalis in 4 cases(7.7%).
2. The placenta previa has occured more often in multiparous(55.8%) than primigravida(44.2%).
3. The first episode of vaginal bleeding occured after 29 weeks in 42 cases(80.8%).
4. The fetal presentation in placenta previa was vertex in 40 cases(76.9%), breech in 10 cases(19.2%), and transverse lie in 2 cases(3.9%).
5. The method of delivery included vaginal delivery in 7 cases(13.5%0, Cesarean section in 40 cases(76.9%), and Cesarean hysterectomy in 5 cases(9.6%).
6. Blood loss at delivery was over 500ml in 44 cases(84.6%) and blood transfusion was needed in 27 cases(51.9%).
7. The perinatal mortality rate was 76.9 per 1,000 births, and preterm delivery occurred in 31 cases (59.6%), low birthweight babies were born in 19 cases (36.5%).
8. In 22 cases(42.3%), there were maternal complications including placenta accreta, puerpural fever, wound infection, and preeclampsia.
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