Document Detail


Performance of third trimester ultrasound for the prediction of the small for gestational age fetus and evaluation of contingency screening policies.
MedLine Citation:
PMID:  21858886     Owner:  NLM     Status:  Publisher    
Abstract/OtherAbstract:
OBJECTIVE: To assess the performance of third trimester fetal biometry and fetal Doppler studies for the prediction of small for gestational age (SGA ≤ 5(th) centile of local charts) neonate. To explore contingency strategies using a first trimester prediction model based on maternal and fetal parameters and third trimester ultrasound. METHODS: Observational cross sectional study. Fetal biometry and umbilical artery and middle cerebral artery Doppler studies were performed routinely in uncomplicated pregnancies at 30-34 weeks. RESULTS: Abdominal circumference (AC, AUC = 0.85) and ultrasound estimated fetal weight (EFW, AUC = 0.87) were equally good predictors of SGA. The addition of umbilical artery Doppler, smoking status and first trimester indices (f-βhCG and PAPP-A MoM) improved marginally the model (AUC = 0.88) but the difference was not statistically significant. A contingency strategy of rescanning in the third trimester 50% of the population according to the risk estimation by a first trimester prediction model yields a detection rate of 79% for 25% screen positive rate. CONCLUSIONS: Third trimester ultrasound is effective in screening for SGA in uncomplicated pregnancies. The use of a contingency screening policy can reduce the need for unnecessary examinations. Copyright © 2011 ISUOG. Published by John Wiley & Sons, Ltd.
Authors:
A P Souka; I Papastefanou; A Pilalis; V Michalitsi; D Kassanos
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Publication Detail:
Type:  JOURNAL ARTICLE     Date:  2011-8-19
Journal Detail:
Title:  Ultrasound in obstetrics & gynecology : the official journal of the International Society of Ultrasound in Obstetrics and Gynecology     Volume:  -     ISSN:  1469-0705     ISO Abbreviation:  -     Publication Date:  2011 Aug 
Date Detail:
Created Date:  2011-8-22     Completed Date:  -     Revised Date:  -    
Medline Journal Info:
Nlm Unique ID:  9108340     Medline TA:  Ultrasound Obstet Gynecol     Country:  -    
Other Details:
Languages:  ENG     Pagination:  -     Citation Subset:  -    
Copyright Information:
Copyright © 2011 ISUOG. Published by John Wiley & Sons, Ltd.
Affiliation:
Fetal Medicine Unit, 3rd Department of Obstetrics and Gynaecology, University of Athens, 'Attikon' University Hospital, Athens, Greece; Leto Maternity Hospital, Fetal Medicine Unit, Athens, Greece. athena.souka@googlemail.com.
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