A Statistical Study of the Cesarean Section

Abstract

A statistical analysis was done about the cesarean section in National Medical Center Hospital in the period of 1976-80, and the changes during this period were examined. 1. Material and Method The patients were admitted to this hospital in the period of 1976-80. and they delivered babies by cesarean section. They were divided into small groups by several factors, and the results were compared with the results during the period of 1970-74. 2. Result In the perid of 1976-80 there were 3531 deliveries in this hospital. One hundred and ninety-four of these deliveries were by cesarean section, the rate of cesarean section was 5-5% and this rate was reduced by half as compared with 11.29% during the period of 1970-74 The most common indications were fetal distress, cephalo-pelvic disproportion and placenta previa. The cases of previous cesarean section were greatly decreased as compared with the cases during the period of 1970-74. The cases of primiparaous breech presentation and old primipara were decreased, too. But the cases of fetal distress increased. The methods of anesthesia were mainly inhalation anesthesia and this tendency was not changed. 3. Discussion Since 1976, we reevaluated the indication for cesarean section in this hospital resulting in the decreased rate of the cesarean section. In the previous cesarean section, the cases of uterine rupture are uncommon and many cases are allowed to trial labor. So the cases of vaginal delivery have increased. Because of the development and the spread of the fetal monitoring, early detection of fetal distress has become possible. So the cases of cesarean section by fetal distress have increased. Conversely, we can carefully observe to delivery process and fetal condition of high risk pregnancy, e. g. old primipara, primiparaous breech presentation. So the cases, whose indication were old primipara or pri-. © 1984, Japanese Society of National Medical Services. All rights reserved.