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document
A randomized study of fetal abdominal diameter and fetal weight estimation for detection of light-for-gestation infants in low-risk pregnancies . A total of 2771 pregnant women with gestational age estimated by ultrasound measurement of the fetal biparietal diameter ( BPD ) before the 22nd week of gestation were re-examined by ultrasound in the 32nd and 37th week of pregnancy at which time the fetal BPD and abdominal diameter ( AD ) were measured . An additional examination was performed at 34 weeks if the fetal weight in the 32nd week was estimated to be less than 95 % of the expected mean weight . Light-for-gestational age ( LGA ) was suspected if the estimated birth-weight was less than 85 % of the expected mean birthweight . This applied to 186 uncomplicated pregnancies in which there was no clinical suspicion of poor intrauterine growth . These pregnancies were randomly allocated to a treatment group ( AD and estimated weight reported ) or to a control group ( AD and estimated weight withheld ) . Induction of labour was significantly more common in the treatment group ( 41 % ) than in the control group ( 15 % ) . No statistically significant difference was found in the use of instrumental vaginal delivery or caesarean section . There was a suggestion of marginal benefit in terms of neonatal morbidity but this was not statistically significant .
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Intervention_Physical
ultrasound
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Outcome_Physical
Light-for-gestational age ( LGA )
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Outcome_Physical
poor intrauterine growth
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Outcome_Adverse-effects
Induction of labour
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Outcome_Physical
use of instrumental vaginal delivery or caesarean section
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Outcome_Mortality
neonatal morbidity
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Participant_Condition
light-for-gestation
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Participant_Age
infants
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Participant_Condition
low-risk pregnancies
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Participant_Sample-size
2771
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Participant_Condition
pregnant
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Participant_Sex
women
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Participant_Condition
32nd and 37th week of pregnancy