Send to:

Choose Destination
See comment in PubMed Commons below
Am J Obstet Gynecol. 2012 Nov;207(5):410.e1-6. doi: 10.1016/j.ajog.2012.08.012. Epub 2012 Aug 10.

Gestational age at delivery and perinatal outcomes of twin gestations.

Author information

  • 1Division of Maternal-Fetal Medicine, Department of Obstetrics and Gynecology, University of Alabama School of Medicine, Birmingham, AL, USA.



The optimal gestational duration for twin gestations is unknown. Epidemiologic studies show that the lowest perinatal mortality rate for twins is at 37-38 weeks, but these studies lack information on pregnancy complications and neonatal morbidities. This study evaluates pregnancy characteristics and perinatal outcomes of twins in order to assess the optimal gestational age for delivery.


This is a retrospective study of twins delivered at ≥36 weeks at our institution from 1991-2009. The composite rate of perinatal morbidity and mortality (including perinatal death, respiratory distress, suspected sepsis, and need for neonatal intensive care) was determined for weekly intervals from 36-39(+) weeks.


There were 377 twin gestations included. Of those 83% were dichorionic. Fifty-three percent had spontaneous labor and 48% were delivered by cesarean section. Perinatal outcomes improved as gestational age advanced to 38 weeks.


Perinatal morbidity and mortality rates suggest that the optimal time for delivery of twins is at 38 weeks or greater.

Copyright © 2012 Mosby, Inc. All rights reserved.

[PubMed - indexed for MEDLINE]
PubMed Commons home

PubMed Commons

How to join PubMed Commons

    Supplemental Content

    Full text links

    Icon for Elsevier Science
    Loading ...
    Write to the Help Desk