Obstetric History and Likelihood of Preterm Birth of Twins

Sarah Rae Easter; Sarah E. Little; Julian N. Robinson; Hector Mendez-Figueroa; Suneet P. Chauhan

doi:10.1055/s-0037-1617758

American Journal of Perinatology, Inhaltsverzeichnis

Am J Perinatol 2018; 35(11): 1023-1030
DOI: 10.1055/s-0037-1617758

SMFM Fellowship Series Article

Thieme Medical Publishers 333 Seventh Avenue, New York, NY 10001, USA.

Obstetric History and Likelihood of Preterm Birth of Twins

Sarah Rae Easter

¹Division of Maternal-Fetal Medicine, Brigham and Women's Hospital, Harvard Medical School, Boston, Massachusetts

,

Sarah E. Little

¹Division of Maternal-Fetal Medicine, Brigham and Women's Hospital, Harvard Medical School, Boston, Massachusetts

,

Julian N. Robinson

¹Division of Maternal-Fetal Medicine, Brigham and Women's Hospital, Harvard Medical School, Boston, Massachusetts

,

Hector Mendez-Figueroa

²Division of Maternal-Fetal Medicine, Department of Obstetrics and Gynecology, McGovern Medical School, The University of Texas Health Science Center at Houston, Houston, Texas

,

Suneet P. Chauhan

²Division of Maternal-Fetal Medicine, Department of Obstetrics and Gynecology, McGovern Medical School, The University of Texas Health Science Center at Houston, Houston, Texas

› Institutsangaben

Abstract

Objective The objective of this study was to investigate the relationship between preterm birth in a prior pregnancy and preterm birth in a twin pregnancy.

Study Design We performed a secondary analysis of a randomized controlled trial evaluating 17-α-hydroxyprogesterone caproate in twins. Women were classified as nulliparous, multiparous with a prior term birth, or multiparous with a prior preterm birth. We used logistic regression to examine the odds of spontaneous preterm birth of twins before 35 weeks according to past obstetric history.

Results Of the 653 women analyzed, 294 were nulliparas, 310 had a prior term birth, and 49 had a prior preterm birth. Prior preterm birth increased the likelihood of spontaneous delivery before 35 weeks (adjusted odds ratio [aOR]: 2.44, 95% confidence interval [CI]: 1.28–4.66), whereas prior term delivery decreased these odds (aOR: 0.55, 95% CI: 0.38–0.78) in the current twin pregnancy compared with the nulliparous reference group. This translated into a lower odds of composite neonatal morbidity (aOR: 0.38, 95% CI: 0.27–0.53) for women with a prior term delivery.

Conclusion For women carrying twins, a history of preterm birth increases the odds of spontaneous preterm birth, whereas a prior term birth decreases odds of spontaneous preterm birth and neonatal morbidity for the current twin pregnancy. These results offer risk stratification and reassurance for clinicians.

Keywords

twins - preterm birth - multiple pregnancy - neonatal morbidity

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Referenzen

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