Twins represent 3.2% of all live births. However, they account for 20% of all preterm deliveries, 60% delivering <37 weeks, 10.7% <32 weeks, and 5 times higher risk of infant death. Risk factors for preterm birth (PTB) include the history of preterm delivery, monochorionic twins, short cervical length, and cervical surgery. Transvaginal cervical length <24 weeks is the best tool to predict PTB. Only vaginal progesterone in women with transvaginal cervical length <25 mm and physical exam indicated cerclage in women with cervical dilation >1 cm have shown a significant decrease in PTB and improvement in neonatal outcomes. Copyright © 2023 Wolters Kluwer Health, Inc. All rights reserved.
Amanda Roman. Screening and Prevention of Preterm Birth in Twin Pregnancies. Clinical obstetrics and gynecology. 2023 Dec 01;66(4):804-824
PMID: 37910049
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