The association between fetal fibronectin and spontaneous preterm birth in twin pregnancies with a shortened cervical length

Objective: To estimate the association between a positive fetal fibronectin (fFN) and spontaneous preterm birth (SPTB) in twin pregnancies with a shortened cervical length (CL). Study design: Retrospective cohort study of asymptomatic twin pregnancies managed by a single MFM practice from 2005 to 20...

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Bibliographic Details
Published in:The journal of maternal-fetal & neonatal medicine 2018-10, Vol.31 (19), p.2564-2568
Main Authors: Matthews, Kathy C., Gupta, Simi, Lam-Rachlin, Jennifer, Saltzman, Daniel H., Rebarber, Andrei, Fox, Nathan S.
Format: Article
Language:English
Subjects:
Cervical length
fetal fibronectin
preterm birth
twins
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Summary:Objective: To estimate the association between a positive fetal fibronectin (fFN) and spontaneous preterm birth (SPTB) in twin pregnancies with a shortened cervical length (CL). Study design: Retrospective cohort study of asymptomatic twin pregnancies managed by a single MFM practice from 2005 to 2016. We included all women with a shortened CL ≤25 mm at 22-28 weeks, and compared outcomes between women with a positive and negative fFN result. Results: One hundred fifty-five patients were included, 129 (83.2%) of whom had a negative fFN and 26 (16.8%) of whom had a positive fFN. Baseline characteristics were similar between groups, except for the CL at the time of diagnosis of short cervix (15 mm in the positive fFN group versus 20 mm in the negative fFN group, p = .002). The risk of SPTB
ISSN:1476-7058
1476-4954
DOI:10.1080/14767058.2017.1347627