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Maternal Hydration Increases Amniotic Fluid Index

From the Department of Obstetrics, Gynecology, and Reproductive Sciences, University of California at San Francisco, and Perinatal Services, Children's Hospital, San Francisco, California

Abstract

Although adequate amniotic fluid (AF) volume is considered an important aspect of fetal well-being, the etiology of decreased AF volume is not well understood. A randomized blinded trial was designed to examine our hypothesis that maternal hydration would increase the AF index in women with low AF indexes. Women seen in our testing centers were randomized into control or hydration groups. The control group was instructed to drink their normal amount of fluid; the hydration group was instructed to drink 2 L of water, in addition to their usual amount of fluid, 2-4 hours before the post-treatment AF index. The women returned for the post-treatment AF index the same or following day. The mean post-treatment AF index was significantly greater in the hydration group (6.3 versus 5.1; P<.01), as was the mean change in AF index (post-treatment AF index – pre-treatment AF index: 1.5 versus 0.31; P<.01). These findings suggest that maternal oral hydration increases AF volume in women with decreased fluid levels.

This article has been cited by other articles:

				E. F. Magann, D. A. Doherty, S. P. Chauhan, S. P. Barrilleaux, L. A. Verity, and J. N. Martin Jr Effect of Maternal Hydration on Amniotic Fluid Volume Obstet. Gynecol., June 1, 2003; 101(6): 1261 - 1265. [Abstract] [Full Text] [PDF]

				D. Chelmow, E. R. Baker, and L. Jones Maternal Intravenous Hydration and Amniotic Fluid Index in Patients With Preterm Ruptured Membranes Reproductive Sciences, May 1, 1996; 3(3): 127 - 130. [Abstract] [PDF]