Which is the most accurate formula to estimate fetal weight in women with severe preterm preeclampsia?

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dc.contributor.authorGeerts L.
dc.contributor.authorWidmer T.
dc.date.accessioned2011-05-15T16:17:01Z
dc.date.available2011-05-15T16:17:01Z
dc.date.issued2011
dc.description.abstractObjective. To identify the most accurate formula to estimate fetal weight (EFW) from ultrasound parameters in severe preterm preeclampsia. Methods. In a prospective study, serial ultrasound assessments were performed in 123 women with severe preterm preeclampsia. The EFW, calculated for 111 live born, normal, singleton fetuses within 7 days of delivery using 38 published formulae, was compared to the actual birth weight (ABW). Accuracy was assessed by correlations, mean (absolute and signed) (%) errors, % correct predictions within 5-20% of ABW and limits of agreement. Results. Accuracy was highly variable. Most formulae systematically overestimated ABW. Five Hadlock formulae utilizing three or four variables and Woo 3 formula had the highest accuracy and did not differ significantly (mean absolute % errors 6.8-7.2%, SDs 5.3-5.8%, > 75% of estimations within 10% of ABW and 95% limits of agreement between -18/20% and 14/15%). They were not negatively affected by clinical variables but had some inconsistency in bias over the ABW range. All other formulae, including those targeted for small, preterm or growth restricted fetuses, were inferior and/or affected by multiple clinical variables. Conclusion. In this GA window, Hadlock formulae using three or four variables or Woo 3 formula can be recommended. © 2011 Informa UK, Ltd.
dc.description.versionArticle
dc.identifier.citationJournal of Maternal-Fetal and Neonatal Medicine
dc.identifier.citation24
dc.identifier.citation2
dc.identifier.issn14767058
dc.identifier.other10.3109/14767058.2010.485232
dc.identifier.urihttp://hdl.handle.net/10019.1/14035
dc.subjectabdominal circumference
dc.subjectaccuracy
dc.subjectadult
dc.subjectanthropometric parameters
dc.subjectanthropometry
dc.subjectarticle
dc.subjectbiparietal distance
dc.subjectcontrolled clinical trial
dc.subjectdisease severity
dc.subjectechography
dc.subjectfemale
dc.subjectfemur
dc.subjectfetus
dc.subjectfetus weight
dc.subjectgestational age
dc.subjecthead circumference
dc.subjecthuman
dc.subjectintermethod comparison
dc.subjectmajor clinical study
dc.subjectmenstrual cycle
dc.subjectprediction
dc.subjectpreeclampsia
dc.subjectpriority journal
dc.subjectprospective study
dc.titleWhich is the most accurate formula to estimate fetal weight in women with severe preterm preeclampsia?
dc.typeArticle
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