Cervical length screening for prevention of preterm birth in singleton pregnancy with threatened preterm labor: systematic review and meta‐analysis of randomized controlled trials using individual patient‐level data

Cervical length screening by transvaginal sonography (TVS) has been shown to be a good predictive test for spontaneous preterm birth (PTB) in symptomatic singleton pregnancy with threatened preterm labor (PTL). The aim of this review and meta‐analysis of individual participant data was to evaluate the effect of knowledge of the TVS cervical length (CL) in preventing PTB in singleton pregnancies presenting with threatened PTL.

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