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Is cerclage height associated with the incidence of preterm birth in women with an ultrasound-indicated cerclage?

Abstract：

OBJECTIVE:Our aim was to determine whether there was a cerclage height threshold associated with spontaneous preterm birth in patients with an ultrasound-indicated cerclage. STUDY DESIGN:We performed a retrospective cohort study of women with an ultrasound-indicated cerclage. Functional cervical length and the cerclage height (distance from cerclage to the external cervical os) were obtained. Our cohort was grouped into thirds, based on cerclage height percentile. Our primary outcome was spontaneous preterm birth less than 35 weeks. RESULTS:There were 20 women in group 1 (< 18 mm), 25 in group 2 (13-17 mm), and 25 in group 3 (> or = 18 mm). Women with cerclage height 18 mm or greater had a lower incidence of spontaneous preterm birth less than 35 weeks (4%) when compared with those with a cerclage height less than 18 mm (33%) (relative risk, 0.69; 95% confidence interval, 0.55-0.86). CONCLUSION:Cerclage height of 18 mm or greater is associated with a reduction in spontaneous preterm birth for women with an ultrasound-indicated cerclage.

journal_name

Am J Obstet Gynecol

journal_title

American journal of obstetrics and gynecology

authors

Scheib S,Visintine JF,Miroshnichenko G,Harvey C,Rychlak K,Berghella V

doi

10.1016/j.ajog.2008.09.021

subject

Has Abstract

pub_date

2009-05-01 00:00:00

pages

e12-5

issue

5

eissn

0002-9378

issn

1097-6868

pii

S0002-9378(08)01076-4

journal_volume

200

pub_type

杂志文章

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