| Validity of sonographic prediction of fetal weight and weight discordance in twin pregnancies. | |
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MedLine Citation:
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PMID: 20187000 Owner: NLM Status: MEDLINE |
Abstract/OtherAbstract:
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OBJECTIVES: The aims of this study were (1) to assess the accuracy of estimated fetal weight (EFW) in twins and (2) to assess the accuracy of sonographic examination to predict birth weight discordance (BWD). METHODS: We retrospectively analyzed collected data on twin pregnancies between 2004 and 2007. All twin pregnancies with at least one ultrasound (US) examination within 15 days of delivery were included in this study. EFW was calculated according to Hadlock1, Hadlock2, Ong, Shepard and Warsof formulas. Mean and SD of the standardized errors and percentage of newborns with birth weight (BW) within 10% of EFW were calculated. RESULTS: Two hundred eighty-three twin pregnancies were included. Mean and SD (%) of the standardized errors were 1.54 +/- 12.19, 0.19 +/- 11.87, 10.93 +/- 15.55, - 1.91 +/- 14.93 and 5.37 +/- 14.91 for Hadlock1, Hadlock2, Shepard, Ong and Warsof formulas, respectively. Hadlock2's formula allowed for the highest proportion of newborns with BW within 10% of EFW and it also performed best to predict discordance of more than 25% as assessed by area under the ROC curve. CONCLUSIONS: Sonographic prediction of inter-twin BWD within 15 days of delivery seems to be accurate enough for routine clinical use. Performance and predictive values depend on the threshold chosen to define EFW and BW discordance. |
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Authors:
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C Diaz-Garcia; J P Bernard; Y Ville; L J Salomon |
Publication Detail:
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Type: Comparative Study; Journal Article; Validation Studies |
Journal Detail:
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Title: Prenatal diagnosis Volume: 30 ISSN: 1097-0223 ISO Abbreviation: Prenat. Diagn. Publication Date: 2010 Apr |
Date Detail:
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Created Date: 2010-04-07 Completed Date: 2010-06-29 Revised Date: - |
Medline Journal Info:
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Nlm Unique ID: 8106540 Medline TA: Prenat Diagn Country: England |
Other Details:
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Languages: eng Pagination: 361-7 Citation Subset: IM |
Copyright Information:
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Copyright (c) 2010 John Wiley & Sons, Ltd. |
Affiliation:
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Universit? Paris Descartes, Service de Gyn?cologie Obst?trique, Centre Hospitalo-Universitaire Necker-Enfants Malades, AP-HP, 149 rue de S?vres, Paris, France. |
Export Citation:
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| MeSH Terms | |
Descriptor/Qualifier:
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Adult Algorithms Birth Weight* Female Fetal Weight* Humans Infant, Newborn Pregnancy Retrospective Studies Twins / physiology* Ultrasonography, Prenatal* |
From MEDLINE®/PubMed®, a database of the U.S. National Library of Medicine
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