| Abdominal circumference ratio for the diagnosis of intertwin birth weight discordance. | |
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MedLine Citation:
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PMID: 20954854 Owner: NLM Status: In-Process |
Abstract/OtherAbstract:
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OBJECTIVES: We assessed the accuracy of predicting severe twin birth weight discordance (>25%) using the estimated fetal weights (EFW) and abdominal circumference (AC) ratio. METHOD: A cohort of twin gestations underwent ultrasound examinations within two weeks from birth. We focused on the accuracy of EFW and on the diagnosis of severe birth weight discordance by the difference in EFWs and the AC ratio. RESULTS: The 661 eligible twin pairs included 51 (7.7%) severely discordant pairs. The accuracy of an EFW to predict the actual birth weight was quite poor, with an acceptable specificity (96.4%), but low sensitivity (28.6-40.5%), to detect severely discordant pairs, whereas an AC ratio of 1.3 detected these discordant pairs with sensitivity and specificity of 97.3-100% and 99.6-99.7%, respectively. CONCLUSION: By comparing EFWs, 59.5-71.4% of discordant pairs >25% are missed, whereas an AC ratio >1.3 would identify almost all cases. |
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Authors:
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Teresinha Simoes; Catarina Julio; Alexandra Cordeiro; Alvaro Cohen; Abel Silva; Isaac Blickstein |
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Publication Detail:
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Type: Journal Article Date: 2010-10-18 |
Journal Detail:
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Title: Journal of perinatal medicine Volume: 39 ISSN: 1619-3997 ISO Abbreviation: J Perinat Med Publication Date: 2011 Jan |
Date Detail:
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Created Date: 2011-01-13 Completed Date: - Revised Date: - |
Medline Journal Info:
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Nlm Unique ID: 0361031 Medline TA: J Perinat Med Country: Germany |
Other Details:
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Languages: eng Pagination: 43-6 Citation Subset: IM |
Affiliation:
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Department of Maternal-Fetal Medicine Maternity Dr. Alfredo da Costa, Lisbon, Portugal. |
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From MEDLINE®/PubMed®, a database of the U.S. National Library of Medicine
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