Estimation of fetal weight before delivery in low-resource setting of North-west Nigeria: can we rely on our clinical skills?

Ugwa, Emmanuel Ajuluchukwu; Gaya, Sule A; Ashimi, Adewale

doi:10.3109/14767058.2014.938627

Cited by 21 publications

(21 citation statements)

References 14 publications

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“…In this study, the mean APE was 8.2% and the SFWE accuracy rate was 67.0%. These findings were consistent with those of previous reports 6,8-10,14,21-23…”

Section: Discussionsupporting

confidence: 94%

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Accuracy of sonographic fetal weight estimation in full-term singleton pregnant women

Taş¹,

Kir²,

Yılmaz³

et al. 2019

Pak J Med Sci

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Objectives: To investigate the factors which might influence the sonographic fetal weight estimation (SFWE) accuracy. Methods: This prospective study was conducted among 949 singleton term pregnant women who delivered at a tertiary center, from January 2017 to December 2017. All participants’ maternal (i.e. parity, age, body mass index and gestational weight gain during pregnancy), fetal sonographic (i.e. fetal presentation, amniotic fluid index, localization of placenta and estimated fetal weight) and neonatal (birth weight and gender) characteristics were recorded. A p<0.05 was considered significant. Results: The mean absolute percent error (APE) values of SFWE was 8.2±6.5 percent, and overall failure ratio (APE >10%) was 33%. In failure group, primiparous woman and cephalic presentation fetus were significantly more common compared to accuracy group (55.9% vs.44.8%; p=0.001 and 98% vs. 95.2%; p=0.03, respectively). In contrast, the mean neonatal birth weight (NBW) value was significantly lower in failure group compared to success group (3250±565 gr vs. 3404±410 gr; p=0.001). The correlation between SFWE and NBW was linear, however negative, and significant (p=0.001). Logistic regression analysis revealed that primiparous woman, cephalic presentation fetus and <3300 gr NBW were independent risk factors for the SFWE failure (relative risks were 1.6, 2.8 and 2.4 respectively, p<0.05). Conclusion: SFWE has a high correlation with NBW, however it’s accuracy is still unsatisfactory, and depend on many unpredictable and inconsistent factors. How to cite this:Tas EE, Kir EA, Yilmaz G, Yavuz AF. Accuracy of sonographic fetal weight estimation in full-term singleton pregnant women. Pak J Med Sci. 2019;35(1):34-38. doi: https://doi.org/10.12669/pjms.35.1.373 This is an Open Access article distributed under the terms of the Creative Commons Attribution License (http://creativecommons.org/licenses/by/3.0), which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.

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“…In this study, the mean APE was 8.2% and the SFWE accuracy rate was 67.0%. These findings were consistent with those of previous reports 6,8-10,14,21-23…”

Section: Discussionsupporting

confidence: 94%

“…SFWE is significantly correlated with NBW. Previous reports6,8,14,21-23 investigating the efficiency of sonography have determined that the mean APE is within a 10.0% range of NBW. However, SFWE accuracy remains unsatisfactory, with failure rates of between 32.0% and 83.0% 9,10.…”

Section: Discussionmentioning

confidence: 91%

Accuracy of sonographic fetal weight estimation in full-term singleton pregnant women

Taş¹,

Kir²,

Yılmaz³

et al. 2019

Pak J Med Sci

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“…The present study reported a mean absolute percentage error of 8.13 ± 5.47% for all groups for sonographic EFW measurement. This is consistent with the accuracy of 6–12% reported in several studies …”

Section: Discussionsupporting

confidence: 93%

Influence of maternal body mass index on sonographic fetal weight estimation prior to scheduled delivery

Aksoy

Karadağ

et al. 2015

J of Obstet and Gynaecol

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“…Torloni et al 6 in Brazil had a mean parity of 1.2 ± 1.5 amongst their study participants. The contrary was the case in Kano, North-Western Nigeria, where Ugwa et al 13 had a parity of 3 ± 2 amongst their study participants. This may be because of low level of education, early marriages and higher births amongst women in the North-Western region of Nigeria compared to Keffi in North-Central Nigeria.…”

Section: Discussioncontrasting

confidence: 55%

Accuracy of the product of symphysio-fundal height and abdominal girth in prediction of birth weight among term pregnant women at Keffi, Nigeria

Ariyo

Yohanna

Odekunle

2020

African Journal of Primary Health Care & Family Medicine

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Background A reliable prediction of foetal birth weight aids in decision regarding time and mode of delivery. Aim This study aimed to determine the accuracy of the product of symphysio-fundal height and abdominal girth in predicting birth weight among pregnant women in Keffi, Nigeria. Setting The study involved pregnant women presenting for delivery at the Federal Medical Centre, Keffi, Nigeria from July to October 2017. Methods One hundred and fifty-three pregnant women at term with singleton foetuses were recruited by systematic random sampling. An interviewer-administered questionnaire was used to obtain their socio-demographic data, past medical and obstetric history. Symphysio-fundal height and abdominal girth measurements were used to calculate the estimated foetal weight. This was compared with the actual birth weight. Absolute percentage error was used to determine the overall predictive error of Dare’s formula. Data were analysed using SPSS version 20.0. Statistical significance was set at p < 0.05 and 95% confidence level. Results The mean age of the participants was 29.65 ± 5.15 years. The mean gestational age was 39.5 ± 1.2 weeks. There was a significant correlation ( r = 0.52, p < 0.001) between the estimated foetal weight and the actual birth weight. Ninety (66.2%) of the babies within normal weight and six (85.7%) of macrosomic babies were correctly predicted. None of the low birth weight babies was correctly predicted by the formula. Conclusion Dare’s formula accurately predicted normal weight and macrosomic babies, but less accurately predicted low birth weight babies.

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Estimation of fetal weight before delivery in low-resource setting of North-west Nigeria: can we rely on our clinical skills?

Abstract: Clinical method of fetal weight estimation can only be recommended for use as screening tool for normal weight and macrosomic fetuses.

Cited by 21 publications

References 14 publications

Accuracy of sonographic fetal weight estimation in full-term singleton pregnant women

Accuracy of sonographic fetal weight estimation in full-term singleton pregnant women

Influence of maternal body mass index on sonographic fetal weight estimation prior to scheduled delivery

Accuracy of the product of symphysio-fundal height and abdominal girth in prediction of birth weight among term pregnant women at Keffi, Nigeria

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