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Licensed Unlicensed Requires Authentication Published by De Gruyter July 11, 2014

Antenatal testing in uncomplicated pregnancies: should testing be initiated after 40 or 41 weeks?

  • A. Dhanya Mackeen EMAIL logo , P. Kaitlyn Edelson , Susan Wisch , Lauren Plante and Stuart Weiner

Abstract

Objective: This study aims to compare outcomes of antenatal testing in women who received testing between 40 weeks and 40+6 weeks versus those who received testing at ≥41 weeks.

Materials and methods: This retrospective study included women without maternal comorbidities, who were referred for outpatient antenatal testing for gestational age ≥40 weeks. We compared women who received antenatal testing between 40 and 40+6 weeks (Group 1), to those who were only tested at ≥41 weeks (Group 2).

Results: A total of 827 Group 1 and 244 Group 2 pregnancies were evaluated. One-hundred and eighty-nine (18%) were sent to labor and delivery (L&D) for further evaluation. There were no significant differences between groups in terms of being sent or admitted to labor and delivery, the reason for which women were sent, induction of labor, mode of delivery, neonatal length of stay, or admission to intensive care.

Conclusion: Pregnancies tested at 40 weeks were identified as abnormal and sent to L&D at the same rate as those tested at 41 weeks. Therefore, it may be reasonable to initiate fetal surveillance at the estimated date of delivery.


Corresponding author: A. Dhanya Mackeen, Department of Obstetrics and Gynecology, Geisinger Health System, 100 North Academy Avenue, Danville, Philadelphia, PA 17822, USA, Tel.: +570-271-8160, Fax: +570-214-9029, E-mail:

Acknowledgments

We would like to thank Sandy M. Field, PhD, for the medical writing assistance provided in the preparation of this manuscript.

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The authors stated that there are no conflicts of interest regarding the publication of this article.

Received: 2013-10-29
Accepted: 2014-6-11
Published Online: 2014-7-11
Published in Print: 2015-3-1

©2015 by De Gruyter

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