This is a multicenter randomized study designed to determine if ultrasound indicated cerclage reduces the incidence of spontaneous preterm birth \<34 weeks in asymptomatic women with twin gestations and cervical length ≤15mm, diagnosed by transvaginal ultrasound between 16 to 23 6/7 weeks of gestation.
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AI-rewrites the medical criteria so a patient or caregiver can understand them. Always confirm with the trial site.
Preterm delivery less than 34 weeks
Timeframe: at delivery