| Isolated low-normal amniotic fluid volume in the early third trimester: association with adverse perinatal outcomes. | |
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MedLine Citation:
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PMID: 23241578 Owner: NLM Status: Publisher |
Abstract/OtherAbstract:
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Abstract Aims: To test if an isolated finding of low-normal amniotic fluid index (AFI) in the early third trimester in low-risk patients is associated with adverse perinatal outcomes. Methods: Retrospective cohort study with uncomplicated singleton pregnancies that had ultrasound studies between 28.0 and 31.9 weeks' gestation. Two cohorts with AFI 8.0-11.9 cm (low-normal, LN) and AFI 12.0-19.9 cm (mid-normal, MN) were compared. Results: Patients with LN-AFI (n=99) were more likely to have early (<34 weeks) and late (<37 weeks) preterm birth (PTB) (relative risk 4.2 and 2.4, respectively) and a small for gestational age (SGA) infant (relative risk 1.8) than MN-AFI (n=834), corresponding to a higher NICU admission rate (relative risk 2.5). The risk of "spontaneous" PTB (preterm labor and rupture of membranes) did not differ between the cohorts, whereas the risk of "indicated" PTB (maternal or fetal indications) was significantly increased in LN-AFI. The incidence of abnormal antepartum testing, stillbirth, preeclampsia, placental abruption, fetal intolerance to labor, emergency cesarean delivery, umbilical artery pH <7.0, Apgar scores <7 at 5 min, and neonatal death was not increased in patients with LN-AFI. Conclusion: Low-normal AFI in the early third trimester increases the risk for subsequent delivery of an SGA infant and indicated PTB. |
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Authors:
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Kazumasa Hashimoto; Tania Kasdaglis; Sheveta Jain; Kristin Atkins; Chris R Harman; Ahmet A Baschat |
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Publication Detail:
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Type: JOURNAL ARTICLE Date: 2012-12-8 |
Journal Detail:
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Title: Journal of perinatal medicine Volume: - ISSN: 1619-3997 ISO Abbreviation: J Perinat Med Publication Date: 2012 Dec |
Date Detail:
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Created Date: 2012-12-17 Completed Date: - Revised Date: - |
Medline Journal Info:
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Nlm Unique ID: 0361031 Medline TA: J Perinat Med Country: - |
Other Details:
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Languages: ENG Pagination: 1-5 Citation Subset: - |
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From MEDLINE®/PubMed®, a database of the U.S. National Library of Medicine
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