제왕절개술에 대한 임상적 고찰

Clinical Survey of Cesarean Section

1983년 5월부터 1986년 11월까지 영남대학교 의과대학 부속병원 산부인과에서 제절로 분만한 510예를 대상으로 임상적 관찰분석을 함으로써 다음과 같은 결론을 얻었다. 1. 제절발생빈도는 15.7%였으며 그중 일차제절은 10.9%, 반복제절은 4.7%였으며 제절수술이 점차 증가되는 경향이었다. 2. 연령분포는 26세에서 30세사이의 연령군에서 60.2%로 가장 높은 분포를 보였다. 3. 적응증은 기왕제절 30.2%, 아두골반불균형 26.9%, 이상태위 22.7%의 순이었으며, 일차초산 부제절은 아두골반균형이 일차경산부제절은 이상태위가 가장 많았다. 4. 제절시행 임신주수는 40주에 31.6%로 가장 많았다. 5. 신생아체중분포는 3,000~3,499gm군이 39.8%로 가장 많았으며 미숙아가 9.1%, 거대아는 5.6%였다. 6. 제절술식은 자궁협부횡절개술이 97.5%였다. 7. 제절술시 병행한 수술로는 난관결찰술, 난소낭종제거술, 자궁적출술, 충수제거술, 자궁근종제거술의 순이었다. 8. 마취방법으로 전신마취가 83.5%였다. 9. 모성이환율은 14.7%였으며 그 원인은 창상 감염, 요로감염, 불명열, 산후출혈의 순이었다. 10. 입원당시 빈혈의 정도별 모성이환율은 혈색소치가 10이하인 경우 18.4%의 모성이환율을 보였고, 낮을수록 모성이환율이 증가되었다. 11. 양수파막 24시간이상 경과군에서의 모성이환율이 44.4%였다. 12. 분만진통시간이 12시간이상군에서 24.6%의 모성이환율을 보였고, 진통시간이 길수록 되었다. 13. 자궁협부절개술에서 14.1%로서 가장 낮은 모성이환율을 보였다. 14. 응급수술시행군에서 선택적수술군보다 모성이환율이 2배정도 높았다. 15. 모성사망은 1예도 없었다.

Recent reports have noted the increase of and questioned the justification for cesarean section rate in the past decade. This study was carried out retrospectively based on the clinical charts of 510 patients who had been performed cesarean section among 3,357 deliveries at Yeungnam University Hospital from May, 9, 1983 through Nov., 30, 1986. The results were as follows : 1. Overall incidence of cesarean section was 15.7% of total deliveries. Of these, 10.9% were by primary cesarean section and 4.7% by repeat operation. There has been a gradual increase in the cesarean section rate. 2. In the distribution of age, the 26-30 aged group was the most prevalent(60.2%). 3. The most common indications for cesarean section were previous cesarean section(30.2%), CPD (26.9%), Malpresentation(22.7%), and fetal distress(3.5%). In primipara, CPD was the most frequent and in multipara malpresentation. 4. A great proportion(31.6%) was done at 40th gestational week. 5. In the weight distribution of infants, the group of 3,000-3,499gm was the most prevalent(39.8%), premature baby was 9.1%, and giant baby was 5.6%. 6. In the type of operation, lower segment transverse cesarean section was the most(97.5%). 7. In the combined surgery, sterilization was the most prevalent and the next was ovarian cystectomy, hysterectomy, and myomectomy in order. 8. In the type of the anesthesia, general anesthesia was 83.5%. 9. Maternal morbidity was 14.7%. Among the causes of this morbidity, wound infection was the most and the next was urinary tract infection, fever of unknown origin, and atonic bleeding in order. 10. It was found that 18.4% was maternal morbidity in the patients below 10gm Hb. In this group, maternal morbidity was markedly increased as the level of Hb was decreased. 11. Maternal morbidity was increased as the duration of ruptured membrane was prolonged. In the group of over 24 hours after rupture of membrane, it was markedly increased(44.4%). 12. Maternal morbidity was increased as the duration of labor was prolonged. In the group of over 12 hours after the onset of labor, it was 24.6%. 13. Maternal morbity of lower segment transverse cesarean section was the least(14.1%). 14. Maternal morbidity of emergency cesarean section was about two times as much as elective cesarean section.