A Clinical study on the incompetent internal Os of the Cervix.

Yoo, Hyun; Kim, Boo Cheol; Kim, Hyeong Seon; Lee, Keum Nho

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Original Article

Korean Journal of Obstetrics & Gynecology 1999;42(1):58-64.
Published online January 1, 2001.

A Clinical study on the incompetent internal Os of the Cervix.

Hyun Yoo, Boo Cheol Kim, Hyeong Seon Kim, Keum Nho Lee

Abstract

OBJECTIVE
To evaluate the effect of Mcdonald's cerclage and postoperative care on perinatal outcome in patient with incompetent cervix and bulging fetal membranes. METHODS: In the descriptive study, the charts of 78 patients admitted from 1993 to 1997 with a diagnosis of incompetent cervix and cervical dilatation (3cm) were reviewed, Mcdonald's cerclage rate, predisposing factor, fetal salvage by time, factors of falled operation, delivery type were analyzed. RESULTS: The results of the study were as follows; The incidence of II OC was 0.4% of 18702 case, the mean age was 31.9 years old, the average number of gravida was 2.9, the fetal salvage rate was 83.3%, the predisposing factor was previous history of midtrimester termination(56.4%), dilation and curettage(19.2%), unknown(14.1%) etc, the fetal salvage by time was the highest success rate(88.9%) revealed with period from 14th to 16th weeks of gestation, the factors of falled operation were preterm labor(76.9%), PROM(15.4%), infection(7.7%), and delivery type was vaginal delivery in 36 case(55.4%), cesarean section in 29 case(44.6%). CONCLUSION: We concluded that fetal salvage rate was greatly increased when Mcdonald operation was done from 14th to 16th week of gestation if midtrimester abortion and dilatation and curettage were experienced, Even though we have not compared experimental group with control group, upper part of Mcdonald cerclage, no exposure of suture material, benzol conium dressing, bed rest were increased to fetal salvage rate.

Key Words: Incompetent intenal Os of the cervix, Fetal salvage rate, Factors of falled operation

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