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KMID : 0381219900220020192
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Journal of RIMSK
1990 Volume.22 No. 2 p.192 ~ p.198
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Clinical Study on Preterm Labor
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Abstract
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Preterm labor is defined as a labor that occurs between 20 and 37 weeks of pregnancy. Preterm delivery and its sequelae remain the primary cause of perinatal morbidity and mortality.
It is estimated that as much as 80 percent of perinatal mortality and a comparable percentage of perinatal morbidity are attributable to preterm delivery.
The data presented here are based on the 217 cases of preterm labor at the department of obstetrics and gynecology, Chung-Ang University hospital from january 1, 1984 to december 31, 1988. The results obtained as follows;
1) Preterm labor incidence was 10.4%.
2) Obstetric complications associated with preterm labor were spontaneous preterm premature rupture of membrane (29%), anemia (21%), breech presentation (11%), FDIU (10%) placenta previa (8%), preeclampsia (7%), twin pregnancy (4.6%)
3) Subside rate of preterm labor after the tocolytic agent treatment was 10%.
4) The incidence of total live births of preterm delivery was 78.4%.
5) There were no significant differences in sex ratio on preterm delivery (male; female=49.8%; 50.2%)
6) Average time from admission to delivery at pregnancy 20-27 weeks, 28-31 weeks, 32-35 weeks 36-37weeks, were 31.3 min, 54.5 min, 6.Odays, 112, 0 min.
7) Average Apgar score in preterm delivery at pregnancy 20-27 weeks, 28-31 weeks, 32-35 weeks, 36-37 weeks were 4.7 (1 min) and 6.0 (5 min), 4.9and 6.5, 7.4and 8.1, 8.5and 8.9 therefor Apgar score at near term in preterm delivery were higher than those of other gestational weeks.
8) Cesarean section rate in preterm delivery was 17%.
9) The incidence of preterm delivery in the multiparas (67%)was twice than that in the primiparas (33%).
10) The incidence of twin pregnancy in preterm delivery was 4.6%.
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