Analysis of effect of pregnancy with double loop cerclage for cervical incompetence / 中国基层医药

ABSTRACT

Objective To observe the effect of pregnancy double loop cerclage for cervical incompetence. Methods 80 cases of cervical function incompetence according to the type of surgery were divided into two groups, 40 cases in each group,15 -20 weeks of surgery in pregnancy,the treatment group underwent double loop cerclage, the control group underwent McDonald single cerclage.The operation,postoperative cervical length and pregnancy outcome of the two groups were observed.Results There was no difference in operation time and blood loss between the two groups.The length of cervix in the treatment group was (4.63 ±0.52)cm,which was longer than (3.71 ± 0.82)cm of the control group(t =2.106,P <0.05).Pregnancy outcome:20 cases of the treatment group in term birth (50%),preterm birth in 18 cases (45%)(34 -37 weeks in 12 cases,28 -34 weeks in 6 cases),fetal survival in 36 cases (90%),less than 28 weeks pregnant inevitable abortion in 2 cases (5%),abortion did not survive.Average delivery gestational age was 35.2 weeks,and preoperative average abortion pregnant weeks contrast,treatment group delivery gestational weeks extended 13.5 weeks,the average weight of newborns was (3 200 ±200)g.The control group of full -term delivery was 14 cases (35%),premature in 20 cases (50%)(34 -37 weeks in 7 cases and 13 cases of 28 -34 weeks),fetal survival in 33 cases (82.5%),less than 28 weeks pregnant inevitable abortion in 4 cases (10%),abortion did not survive.Average delivery gestational age was 33.2 weeks,compared with the average abortion weeks before operation,the gestational age of the control group was extended by 11.5 weeks.The weight of newborn was (2 900 ±300)g.In the treatment group,the term labor rate,fetal survival rate,neonatal weight were higher than those of the control group,the difference was statistically significant (χ2 =7.83,P <0.05).Conclusion The second trimester cervical double cerclage can maintain effective cervical length,prolong gestational age,improve perinatal survival rate.