engleski

Accuracy of fetal weight ultrasound assessment in term pregnancies

Fetal weight assessment is of great value for appropriate management of advanced pregnancies. Ultrasound assessment is considered the most accurate and often used method, but it is still unclear which of the many formulas used for ultrasound assessment is best and most accurate. The aim of this study was to determine whether there is a signifi cant difference between birth weight and fetal weight assessed using the ultrasound and two different formulas ; Hadlock II and Campbell Wilkin. We also sough to recognise determinants that enable more accurate fetal weight assessment as well as the determinants that disenable it. Methods. A prospective study was conducted at Clinical Hospital ”Sveti Duh” in Zagreb from December 2013 until March 2014. The study included 342 pregnant women who gave birth and who had fetal weight ultrasound assessment done within three days prior to delivery. The difference between actual and estimated fetal weight was tested using Wilcoxon Matched Pairs Test. Logistic regression analysis was performed to analyse the correlation between birth weight and the determinants that infl uence the accuracy of fetal weight ultrasound assessment. Results. There is no signifi cant difference between birth weight and fetal weight assessed using Hadlock II formula, while a signifi cant difference exists when Campbell Wilkin formula in used. Also, fetal weight assessment is less accurate when used for extreme values of fetal weight. Conclusion. Fetal weight ultrasound assessment using Hadlock II formula is an accurate and reliable method and should be used routinely in everyday clinical practice, while Campbell Wilkin formula should be used with caution. Also, clinicians should be aware of the limited values of fetal weight assessment when dealing with extreme values of fetal weight.

ultrasound ; fetal weight assessment ; Hadlock II ; Campbell Wilkin

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