| Antenatal testing among 1001 patients at high risk: the role of ultrasonographic estimate of amniotic fluid volume. | |
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MedLine Citation:
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PMID: 10368467 Owner: NLM Status: MEDLINE |
Abstract/OtherAbstract:
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OBJECTIVE: Our goal was to compare the accuracy of the amniotic fluid index and the 2-diameter pocket technique with respect to accuracy in predicting an adverse pregnancy outcome among patients at high risk undergoing antenatal testing. STUDY DESIGN: All women with high-risk pregnancies and intact membranes who underwent antenatal testing during an 18-month period were prospectively enrolled. Ultrasonographic estimates of amniotic fluid volume were performed by means of the amniotic fluid index and the 2-diameter pocket technique. Relative risks with 95% confidence intervals and receiver operator characteristic curves were calculated for patients with an ultrasonographic estimate of oligohydramnios (amniotic fluid index of </=5 cm or 2-diameter pocket of </=15 cm2) versus normal fluid level (amniotic fluid index of >5 cm or 2-diameter pocket of >15 cm2). Outcome variables studied were intrapartum and neonatal complications. RESULTS: Among 1001 patients the mean (+/-SD) amniotic fluid index was 10.5 +/- 5 cm and the mean (+/-SD) 2-diameter pocket was 18.7 +/- 13.6 cm2. Significantly more patients (46%) were considered to have oligohydramnios according to the 2-diameter pocket criteria than according to the amniotic fluid index (21%, P <.0001, relative risk 1.7, 95% confidence interval 1.5-1.8). No significant differences in the incidences of nonreactive nonstress test results, meconium-stained amniotic fluid, cesarean delivery for fetal distress, low Apgar scores, or infants with cord pH of <7.10 were observed between the oligohydramnios and normal amniotic fluid groups (P >.05) when assessed by relative risk with confidence interval and by receiver operator characteristic curves. CONCLUSIONS: Current ultrasonographic measurements with the amniotic fluid index and the 2-diameter pocket technique are poor diagnostic tests to determine whether a patient is at high risk for an adverse perinatal outcome. |
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Authors:
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E F Magann; S P Chauhan; M J Kinsella; M F McNamara; N S Whitworth; J C Morrison |
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Publication Detail:
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Type: Journal Article; Research Support, Non-U.S. Gov't |
Journal Detail:
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Title: American journal of obstetrics and gynecology Volume: 180 ISSN: 0002-9378 ISO Abbreviation: Am. J. Obstet. Gynecol. Publication Date: 1999 Jun |
Date Detail:
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Created Date: 1999-07-15 Completed Date: 1999-07-15 Revised Date: 2006-11-15 |
Medline Journal Info:
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Nlm Unique ID: 0370476 Medline TA: Am J Obstet Gynecol Country: UNITED STATES |
Other Details:
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Languages: eng Pagination: 1330-6 Citation Subset: AIM; IM |
Affiliation:
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Departments of Obstetrics and Gynecology, Naval Medical Center, Medical College of Georgia, USA. |
Export Citation:
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APA/MLA Format Download EndNote Download BibTex |
| MeSH Terms | |
Descriptor/Qualifier:
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Adult Amniotic Fluid / physiology, ultrasonography* Apgar Score Cesarean Section Female Fetal Blood Fetal Distress Humans Hydrogen-Ion Concentration Meconium Oligohydramnios / ultrasonography* Pregnancy Pregnancy Outcome* ROC Curve Risk Factors Sensitivity and Specificity Ultrasonography, Prenatal* |
| Comments/Corrections | |
Comment In:
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Am J Obstet Gynecol. 2001 Mar;184(4):778-9
[PMID:
11262491
]
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From MEDLINE®/PubMed®, a database of the U.S. National Library of Medicine
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