Does midtrimester cervical length ≥25 mm predict preterm birth in high-risk women? - 19/08/11
Vaginal Ultrasound Trial Consortium
Résumé |
Objective |
We sought to assess pregnancy outcome along a continuum of cervical lengths (CLs) ≥25 mm.
Study Design |
We conducted planned secondary analysis of a randomized cerclage trial of women with prior spontaneous preterm birth 170-346/7 weeks. Outcomes of women who maintained CLs ≥25 mm were analyzed. Women with CLs <25 mm randomized to no cerclage comprised an internal comparison group.
Results |
Of 1014 screened, 153 had CL <25 mm, and 672 had CL ≥25 mm. Birth <35 weeks occurred in 16% of the ≥25 mm cohort. The relationship between CLs ≥25 mm and birth gestational age was null (P = .15). In the <25 mm group, progressively shorter CLs predicted birth <35 weeks (P < .001); this relationship was null in the ≥25 mm group (P = .17).
Conclusion |
The continuum of CLs ≥25 mm measured between 160/7-226/7 weeks does not predict gestational length in women with prior spontaneous preterm birth.
Le texte complet de cet article est disponible en PDF.Key words : cervical length, preterm birth prediction, prior preterm birth, vaginal sonography
Plan
| The other members of the Vaginal Ultrasound Trial Consortium are listed with the full-length article at www.AJOG.org. |
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| The Eunice Kennedy Shriver National Institute of Child Health and Human Development provided funding via Grant no. U01 HD039939. From the same agency, Dr Owen received support via Grant no. 5K24 HD43314-5. |
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| Reprints not available from the authors. |
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| Cite this article as: Owen J, Szychowski JM, Hankins G, et al. Cervical lengths ≥25 mm and preterm birth. Am J Obstet Gynecol 2010;203:393.e1-5. |
Vol 203 - N° 4
P. 393.e1-393.e5 - octobre 2010 Retour au numéroBienvenue sur EM-consulte, la référence des professionnels de santé.
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