Sonographic EFW and macrosomia: Is there an optimum formula to predict diabetic fetal macrosomia?

Combs, C. Andrew; Rosenn, Barak; Miodovnik, Menachem; Siddiqi, Tariq A.

doi:10.1002/(sici)1520-6661(200001/02)9:1<55::aid-mfm12>3.0.co;2-9

Cited by 66 publications

(37 citation statements)

References 20 publications

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“…Twenty-eight of the formulae tested were able to predict macrosomia better than measurement of AC alone. However, none of the formulae was superior to others in assessing weight in fetal macrosomia 42 . When comparing fetal weight equations, some authors derived model coefficients for commonly used formulae from multiple regression analysis of their own data.…”

Section: Discussionmentioning

confidence: 85%

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Macrosomia: a new formula for optimized fetal weight estimation

Hart

Hilbert

Meurer

et al. 2009

Ultrasound in Obstet & Gyne

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Objectives To develop and test a specific formula for estimating weight in the macrosomic fetus. (3.69 (range, 0.05-13.57)%) when studied in the evaluation group. With the new formula, 77.9% of estimates fell within ± 5% of the actual weight at birth, 97.1% within ± 10%, and 100% within ± 15% and ± 20%. Methods ConclusionsThe new formula allows better weight estimation in the macrosomic fetus.

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Section: Discussionmentioning

confidence: 85%

“…The sensitivity for predicting macrosomia was 80% 41 . Combs et al compared the accuracy of 31 formulae in predicting weight of macrosomic fetuses in women with diabetes (n = 165) 42 . The formula published by Ott et al produced the best results 43 .…”

Section: Discussionmentioning

confidence: 99%

Macrosomia: a new formula for optimized fetal weight estimation

Hart

Hilbert

Meurer

et al. 2009

Ultrasound in Obstet & Gyne

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show abstract

“…23,24,35 Since we found no statistically significant difference between sonographically estimated low fetal weight compared with babies actually born with low birth weight, and no statistically significant difference was found between fetuses sonographically predicted with excessive weight compared with babies actually born with excessive weight, our result appears to contrast the notion that sonography may be more accurate at predicting low weight fetuses than it is in predicting excessive weight fetuses. 19,36.…”

Section: Figure 4: Bland and Altman Plots Of Differences Between Estimentioning

confidence: 99%

“…17 Many investigators, however, view sonographic fetal weight prediction as complicated, laborious and have also suggested that the modality is adversely affected by maternal characteristics including age and weight, anteriorly located placentae and oligohydramnious and racial factors. 18,19,20,21 Racial variation in sonographic estimation of fetal weight, for instance, is high enough that some investigators have suggested that ' sonographic fetal weight prediction models derived from one ethnic population when applied in another locality, without the validation of its clinical applicability, might result in wrong estimations'. 20 Several studies have been carried out in America, Europe and Asia which compared sonographically estimated fetal weights (EFWs) with actual birth weights (ABWs) of fetuses in order to determine the accuracy of EFWs in their respective population.…”

Section: Introductionmentioning

confidence: 99%

Correlation of ultrasonographic estimated fetal weight with actual birth weight in a tertiary hospital in Lagos, Nigeria.

et al. 2016

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Background: Sonographic fetal weight estimation is an important component of antenatal care. Aim: To sonographically estimate fetal weight at term and to compare estimated with actual birth weights to determine the validity of estimated fetal weights. Subjects and methods: In the prospective study, a convenience sample of 282 women was recruited. Ethical approval and informed consent of patients were obtained. An experienced sonographer estimated fetal weights by measuring BPD, HC, AC and FL using a scanner with Hadlock 3 weight estimation model. Actual birth weights were measured with a Crown weighing scale by a midwife. Data was analyzed with SPSS software version 17.0 while descriptive and inferential statistics were used to interpret results. Results were tested at error level set at p≤ 0.05. Results: Mean estimated and actual birth weights were 3378±40g and 3393±60g respectively. Difference between the two means was not significant. Eleven percent of fetuses were sonographically estimated to be microsomic while 14.5% were microsomic at birth; 12.1% were sonographically estimated to be macrosomic but 15.2% were macrosomic at birth. Most macrosomic fetuses were delivered through cesarean section(CS) and fetal weights increased with maternal age and parity. Conclusion: Sonographically estimated fetal weight using Hadlock 3 weight estimation model without validation correlated positively with actual birth weight in a Nigerian population.

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“…13 To solve this dilemma, various factors have been considered, including which specific parameters to measure and which calculations to use. 8,14 The calculation of birth weight that includes the measurement of fetal abdominal circumference seems to have the best predictive value, particularly in LGA infants. [15][16][17][18] This parameter is found to be decreased in SGA or increased in LGA fetuses relative to the head of the fetus and reflects the nutritional state of the fetus.…”

Section: From Research To Practice / Diabetes and Pregnancymentioning

confidence: 99%

Ultrasound Surveillance in Pregnancy Complicated by Diabetes

Dupak¹,

Trujillo²

2007

Diabetes Spectrum

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This article evaluates the clinical relevance of ultrasonography during pregnancy complicated by diabetes for fetal surveillance, assessment of diabetes impact, guidance of diabetes treatment, and obstetric management. Although ultrasound has improved, its effect on reduction of perinatal morbidity and mortality remains to be proven, and its use to detect large-for-gestational-age fetuses is unreliable. Clinical decisions based on birth weight prediction by sonography are often in error. Measurement of the insulin-sensitive fetal fat layer and fetal abdominal circumference may better reflect the impact of diabetes on the fetus.In Brief

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Sonographic EFW and macrosomia: Is there an optimum formula to predict diabetic fetal macrosomia?

Cited by 66 publications

References 20 publications

Macrosomia: a new formula for optimized fetal weight estimation

Macrosomia: a new formula for optimized fetal weight estimation

Correlation of ultrasonographic estimated fetal weight with actual birth weight in a tertiary hospital in Lagos, Nigeria.

Ultrasound Surveillance in Pregnancy Complicated by Diabetes

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