Is there a relationship to dye determined or ultrasound estimated amniotic fluid volume adjusted percentiles and fetal weight adjusted percentiles?
OBJECTIVE
This study was undertaken to determine whether there is a correlation between neonatal birth weight and an estimated or dye-determined amniotic fluid volume.


METHODS
A prospective observational study of women undergoing an amniocentesis and subsequent delivery within 72 hours. Amniotic fluid volume was estimated using the amniotic fluid index (AFI) and single deepest pocket technique and calculated by the dye-dilution technique.


RESULTS
One hundred seventy-five women participated in the study. Linear regression modelling showed no significant relationship between birth weight and amniotic fluid volume adjusted for gestational age (P=.062). Similarly, there was no evidence of an association between birth weight and a dye determined amniotic fluid volume (P=.180), fixed cutoffs for the AFI (P=.224), percentiles for the AFI (P=.112), or fixed cutoffs for the single deepest pockets (P=.867).


CONCLUSIONS
Neonatal birth weight is not correlated with a dye-determined or ultrasound estimated amniotic fluid volume.
Magann
Everett F
EF
Department of Obstetrics and Gynecology, The University of Western Australia, Perth, Australia.
Doherty
Dorota A
DA
Chauhan
Suneet P
SP
Moses
Jennifer
J
Newnham
John P
JP
Morrison
John C
JC
D000293:Adolescent; D000328:Adult; D000649:Amniocentesis; D000653:Amniotic Fluid / Q000378:metabolism*; D001724:Birth Weight; D015331:Cohort Studies; D004396:Coloring Agents; D005260:Female; D020567:Fetal Weight; D006801:Humans; D007231:Infant, Newborn; D016104:Oligohydramnios / Q000175:diagnosis; D010298:Parity; D006831:Polyhydramnios / Q000175:diagnosis; D011247:Pregnancy; D011256:Pregnancy Outcome; D011263:Pregnancy Trimester, Third; D011336:Probability; D011446:Prospective Studies; D018570:Risk Assessment; D016216:Ultrasonography, Prenatal
D004396:Coloring Agents