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Archives of Gynecology and Obstetrics

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01-11-2014 | Maternal-Fetal Medicine

The association between isolated oligohydramnios at term and pregnancy outcome

Authors: Eran Ashwal, Liran Hiersch, Nir Melamed, Amir Aviram, Arnon Wiznitzer, Yariv Yogev

Published in: Archives of Gynecology and Obstetrics | Issue 5/2014

Abstract

Purpose

As conflicting data exist concerning the implications of isolated oligohydramnios on pregnancy outcome at term, we aimed to assess this association in low-risk pregnancies.

Methods

A retrospective cohort study of term pregnancies with sonographic finding of isolated oligohydramnios (amniotic fluid index (AFI) <5 cm) between 2007 and 2012. Outcome was compared to a control group of pregnancies with normal AFI (5–25 cm). Pregnancies complicated by thrombophilia, hypertension, diabetes, deviant fetal growth or chromosomal/structural abnormalities were excluded. Composite adverse outcome included CS/operative delivery due to non-reassuring heart rate (NRFHR), low Apgar score, umbilical artery pH < 7.10, neonatal intensive care admission, meconium aspiration syndrome, intubation or hypoxic-ischemic encephalopathy.

Results

Overall, 987 pregnancies complicated by isolated oligohydramnios were compared to 22,280 low-risk pregnancies with normal AFI. Isolated oligohydramnios was associated with a higher rate of induction of labor (27.7 vs. 3.7 %, p < 0.001), CS due to NRFHR (2.3 vs. 1.1 %, p < 0.01) and composite adverse outcome (9.7 vs. 7.1 %, p < 0.01). However, after adjusting for potential confounders as induction of labor and nulliparity using multivariable logistic regression analysis, isolated oligohydramnios was not found to be independently associated with increased risk for composite adverse outcome (OR 1.01, 95 % CI 0.80–1.27, p = 0.93).

Conclusion

Isolated oligohydramnios at term by itself is not associated with increased obstetrical morbidity.

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Title: The association between isolated oligohydramnios at term and pregnancy outcome
Authors: Eran Ashwal
Liran Hiersch
Nir Melamed
Amir Aviram
Arnon Wiznitzer
Yariv Yogev
Publication date: 01-11-2014
Publisher: Springer Berlin Heidelberg
Published in: Archives of Gynecology and Obstetrics / Issue 5/2014
Print ISSN: 0932-0067
Electronic ISSN: 1432-0711
DOI: https://doi.org/10.1007/s00404-014-3292-7

2024 ASCO Annual Meeting

Springer Medicine

The association between isolated oligohydramnios at term and pregnancy outcome

Abstract

Purpose

Methods

Results

Conclusion

2024 ASCO Annual Meeting

Springer Medicine

Abstract

Purpose

Methods

Results

Conclusion

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