Document Detail

Transvaginal sonography of the forewaters in the assessment of amniotic fluid volume in patients with oligohydramnios.
MedLine Citation:
PMID:  9514138     Owner:  NLM     Status:  MEDLINE    
OBJECTIVE: To determine whether the forewaters should be considered in the assessment of amniotic fluid (AF) volume in patients beyond 37 weeks' gestation. METHODS: Sixty patients were prospectively studied and designated as having oligohydramnios or normal AF volume based upon on the standard four-quadrant AF index (AFI) of < or = 5 cm or > 5 cm, respectively. The distance between the internal os and the fetal head was measured transvaginally. This measurement was first added to the standard AFI and subsequently interchanged with the lowest of the two lower abdominal quadrant measurements. Statistical analysis included Student's t-test with p < 0.05 considered significant. RESULTS: Thirty patients were classified as oligohydramnios and 30 normal AF volume. The two subgroups did not differ as to maternal age, parity, gestational age at sonographic examination, incidence of meconium-stained amniotic fluid or 5-min Apgar scores < 7, or birth weight. No significant difference was noted between the mean forewaters measurement of patients with oligohydramnios and controls (0.2 +/- 0.1 and 0.4 +/- 0.1 cm, respectively). In patients with oligohydramnios, there was no significant difference between the standard AFI and the AF volume with the forewaters in each of the methods assessed (2.7 +/- 0.3, 2.9 +/- 0.3, and 2.7 +/- 0.3 cm, respectively). CONCLUSION: We conclude that various permutations of the AFI, which include sonographic assessment of the forewaters, do not impact on the diagnosis of oligohydramnios.
D M Sherer; S E Mann; M P Sardo; M Y Divon
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Publication Detail:
Type:  Comparative Study; Journal Article    
Journal Detail:
Title:  American journal of perinatology     Volume:  15     ISSN:  0735-1631     ISO Abbreviation:  Am J Perinatol     Publication Date:  1998 Feb 
Date Detail:
Created Date:  1998-05-07     Completed Date:  1998-05-07     Revised Date:  2006-11-15    
Medline Journal Info:
Nlm Unique ID:  8405212     Medline TA:  Am J Perinatol     Country:  UNITED STATES    
Other Details:
Languages:  eng     Pagination:  129-32     Citation Subset:  IM    
Department of Obstetrics & Gynecology and Women's Health, Montefiore Medical Center, Albert Einstein College of Medicine, Bronx, New York 10461, USA.
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MeSH Terms
Abdomen / ultrasonography
Amniotic Fluid / physiology*,  ultrasonography
Cohort Studies
Oligohydramnios / physiopathology*,  ultrasonography
Pregnancy Outcome
Prospective Studies
Reference Values
Ultrasonography, Prenatal

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