The effect of cervical cerclage on the rate of cervical XXXX .

@entity1 @entity3152 @entity1420 @entity600 @entity3207 @entity4418
OBJECTIVES: Although cerclage has been shown to reduce the risk of recurrent @entity600 in a select @entity1 population, the mechanism by which this occurs is not well understood. Our objective was to evaluate whether cerclage affects the rate of cervical @entity3207 taking into account exposure to @entity4418 and vaginal @entity1420 . METHODS: This is a retrospective cohort study of @entity1 who had serial cervical length measurements due to a history of spontaneous @entity3152 . Demographic data, obstetric history, @entity1420 administration, delivery information and serial cervical length measurements were collected. The rate of cervical @entity3207 was compared in @entity1 with cerclage to those without cerclage. Subgroup analyses were performed to compare rates of cervical @entity3207 by indication for cerclage (history indicated vs ultrasound-indicated) and outcome in the current pregnancy (cerclage vs no cerclage among those that delivered preterm). RESULTS: A total of 414 @entity1 were included of whom 32.4 % (n   =   134) had a cerclage. There was no difference in the rate of cervical @entity3207 between the cerclage (0.8   mm per week) and no cerclage groups (1.0   mm per week, P   =   0.43). The rates of cervical @entity3207 among history-indicated and ultrasound-indicated cerclage groups were similar (0.9 vs 1.3   mm per week respectively, p   =   0.2). Among @entity1 with a @entity3152 in the index pregnancy, the rate of cervical @entity3207 among those with (1.31   mm per week), and without cerclage (1.28   mm per week, p   =   0.78) was also similar. CONCLUSIONS: Cervical @entity3207 among @entity1 with cerclage occurs at a similar rate as @entity1 without a cerclage, regardless of indication for cerclage or pregnancy outcome.
