Amniotic fluid index in normal pregnancy: a longitudinal study.

Publication/Presentation Date

2-1-1999

Abstract

OBJECTIVE: This longitudinal study was undertaken to characterize the change in the amniotic fluid volume in normal pregnancy.

METHODS: Prospectively, patients with uncomplicated gestations underwent serial amniotic fluid index by a single sonographer.

RESULTS: Fifty-six patients underwent a total of 378 determinations of amniotic fluid volume (6.8 +/- 2.5 examinations per patient). The variation in mean amniotic fluid index between 24 and 40(+6) weeks was not significantly different (p = 0.381). Among the 42 patients who delivered at term there was no significant decrease in the amniotic fluid index between their first and last measurement (p = 0.86). However, in the 14 patients who delivered after 41 weeks, there was a significant decrease in the index over time (p = 0.04).

CONCLUSION: The longitudinal study on amniotic fluid volume in normal pregnancy reveals that amniotic fluid index does not change significantly with gestational age.

Volume

40

Issue

2

First Page

43

Last Page

46

ISSN

0026-6396

Disciplines

Medicine and Health Sciences

PubMedID

10024790

Department(s)

Department of Obstetrics and Gynecology

Document Type

Article

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