This retrospective clinical study was attempted to analyse 173 cases of twin deliveries out of 11, 481 cases delivered at the Department of Obstetrics and Gynecology, Incheon Gil's Hospital during 7 years, from Jan. 1, 1981 to Dec. 31, 1987.
Cinical evaluation with multiple aspects on 120 cases of twin pregnancy were made.
The results obtained were as follows:
1. The freguency of twin births was one in 66 births.
2. Predominant age group of gravida was 25-29 with 61.7% and the least was that of more than 40 years showed 0%, also, that of less than 20 years showed 0%.
3. According to parity, primipara was the most freguent with 44.2% and the least was group of para 4 with 0%.
4. The predominant gestational weeks group of twin births was 37-39 weeks with 37.5% and the least was more than 42 weeks with 0.8%.
5. In presentation of twins, vertex-vertex combination was the most common with 61.7% and vertex-breech was next with 26.7%
6. In cases of first baby, the most freguent baby weight group was 2,500-2,999gm with 30.0% followed by 2,000-2,499gm with 23.3% respectively.
7. The mode of delivery in twin pregnancy, the first baby was 55.8% in cesarean section, 30.8% in spontaneous delivery. The second baby was 55.8% in cesarean section, 24.2% in spontaneous dilivery.
8. 1 minute Apgar score of over 7 was shown in 71.7% of the first and 71.7% of the second twin.
5 minute Apgar score of over 7 was shown in 75% of the first and 75.0% of the second twin.
Low one minute Apgar scores occurred more often in second twins than in first twins.
9. Freguency of cesarean section was 55.8% and their indications were elective with 43.4% both previous C-section and collision revealed 10.5% respectiely.
10. The most freguent maternal complication during antepartum was hypertensive disorder with 27.9%, followed by anemia with 25.7% and premature labor with 16.4% and PROM with 11.4%.
11. The most freguent maternal complication during labor and postpartum was postpartum bleeding with 72.0%, both toxemia and infection revealed 7.0% respectively.
