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EP20.18: Estimating birthweight in tall women: is ultrasound estimation more accurate than clinical assessment? A prospective trial
Author(s) -
Dykan Y.,
Shavit M.,
Schreiber H.,
Weitzner O.,
Yagur Y.,
BironShental T.,
Markovitch O.
Publication year - 2019
Publication title -
ultrasound in obstetrics and gynecology
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 3.202
H-Index - 141
eISSN - 1469-0705
pISSN - 0960-7692
DOI - 10.1002/uog.21546
Subject(s) - medicine , obstetrics , birth weight , percentile , fetal macrosomia , prospective cohort study , ultrasound , fetus , population , gestation , fetal weight , gynecology , pregnancy , surgery , gestational diabetes , statistics , genetics , mathematics , environmental health , radiology , biology
Methods In this prospective trial, tall pregnant women at term were assigned to undergo clinical and sonographic EFW. We included tall parturients that arrived for a prenatal visit at 40-weeks’ gestation or were in labor. Each woman served as her own control. Fetal weight assessors were blinded to the fetal weight estimation of the other method. After delivery, birth weight (BW) was compared to the clinical and sonographic EFW (Figure). The primary outcome was the accuracy of each method compared to the actual birth weight. A sample of 100 women was needed to achieve a clinically significant effect with a power of 80%. Conclusions Birth weight is underestimated among tall woman. Ultrasound EFW is more accurate than clinical estimation. Ultrasound EFW should be considered in this population. Table . Comparison of actual and estimated weights Results

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