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지연임신에 대한 임상적 고찰

Clinical Observation for Postterm Pregnancy

대한산부인과학회지 1994년 37권 3호 p.480 ~ 487
이명숙
류형선/윤광혁/박명호/이상룡/신승권

Abstract


A clinical observation has been made on 698 cases of postterm pregnancies out of 12, 328 cases delivered at the Dept. of Obstetrics & Gynecology, St. Columban Hospital from january 1, 1990 to December 31, 1992.
10,558 cases of full term deliveries of 38 to 42 gestational weeks conducted in same period were used as the control group for this study.
@ES The results were as follows;
@EN 1. The incidence of postterm pregnancy was 5.66% with the highest incidence occuring in the 26~30 years age group. The incidence of postterm pregnancy in primipara (6.54%)was greater than that of multipara(4.92%).
2. In postterm pregnancies, the gestational weeks of 42 was most prevalent(58.45%) and 43 weeks was the next(36.3%).
3. The modes of labor onset in postterm pregnancy showed spontaneous 56.59%, induction 37.39%, and cesarean section without labor 6.02%.
4. The incidence of fetal distress was 2.42% and 6.30% in the control group and postterm group respectively. The incidence of fetal distress in the postterm pregnancy was about 2.60 times greater than of control group and increased markedly as
the
gestational weeks were prolonged.
5. The modes of delivery in postterm pregnancy showed;
spontaneous vaginal delivery 73.35%
vacuum extracted delivery 6.74%.
cesarean section 19.91%
The rate of cesarean section in postterm pregnancies was 19.91% and it was greater than that of term pregnancy(17.3%).
7. As the indication of cesarean section in postterm pregnancies the cephalopelvic disproportion was the most prevalent and failed induction, fetal distress, previous cesarean section were the next in order.
8. The incidence of large fetus(weight over 4,000 gm) was 8.60% and 2.36% in the postterm group and control group respectively, and postterm group was about 3.64 times greater than of the control group.
9. The perinatal death rates were 0.28% and 1.43% in term and postterm pregnancy respectively. And the intrauterine fetal death rates were 0.17% and 0.72%, the neonatal death rates were 0.10 and 0.72% in term and postterm pregnancy respectively.
The perinatal death rate was increased markedly as the gestational weeks were prolonged.

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