Estimation of Fetal Weight in Fetuses With Abdominal Wall Defects

Nicholas, Sara; Tuuli, Methodius G.; Dicke, Jeffrey M.; Macones, George A.; Stamilio, David M.; Odibo, Anthony O.

doi:10.7863/jum.2010.29.7.1069

Cited by 27 publications

(16 citation statements)

References 17 publications

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“…G gastroschisis, CRL crown-rump length, O omphalocele, UPJ ureteropelvic junction. www.nature.com/scientificreports/ The AWDs diagnosis can be easily performed by ultrasound around the 11th to 12th WPC 6,7 . Growth restriction is an important predictor of perinatal morbidity and mortality in gastroschisis and omphalocele, so the accurate estimation of fetal weight is important to guide the management of fetuses with AWDs 24,25 .…”

Section: Discussionmentioning

confidence: 99%

“…Growth restriction is an important predictor of perinatal morbidity and mortality in gastroschisis and omphalocele, so the accurate estimation of fetal weight is important to guide the management of fetuses with AWDs 24,25 . Estimation of weight in fetuses with AWD was very difficult and no formula used in ultrasonography during the gestational period has yet shown good accuracy 6,7 . In AWDs fetuses, the abdominal circumference measurements by ultrasonography may overestimate the weight 6,7 .…”

Section: Discussionmentioning

confidence: 99%

“…Estimation of weight in fetuses with AWD was very difficult and no formula used in ultrasonography during the gestational period has yet shown good accuracy 6,7 . In AWDs fetuses, the abdominal circumference measurements by ultrasonography may overestimate the weight 6,7 .…”

Section: Discussionmentioning

confidence: 99%

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Investigation of a connection between abdominal wall defects and severity of the herniation in fetuses with gastroschisis and omphalocele

Logsdon

Gallo

Favorito

et al. 2021

Sci Rep

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Analyze the biometric parameters and the size (area) of abdominal wall defect (AWD) in fetuses with gastroschisis and omphaloceles and correlate them with the herniated internal organs. We studied 22 fetuses (11 with AWDs and 11 without anomalies). In all fetuses we evaluated the xiphopubic distance (XPD) and iliac crest distance (ICD). In fetuses with AWDs we dissected the abdominal wall and measured the width and length of the defect for calculating its area and studying the correlation between the size of the defect with the organs that were herniated. For statistical analysis, the Anova and Tukey post-test were used (p < 0.05). The XPD in the control group had mean of 4.2 mm (2.3–5.9; SD ± 1.11), while in the AWDs it was 4.2 mm (2.9–5.5; SD ± 0.98) (p = 0.4366). The ICD had mean values of 2.5 mm (1.6–3.4; SD ± 0.58) in the control group, and 2.3 mm (1.2–3.0; SD ± 0.56) in AWDs fetuses (p = 0.6963). The number of herniate organs do not have significant correlation with the area of the defect (r2 = 0.2504, p = 0.5068). There is no correlation between the size (area) of abdominal wall defects and the number of the internal organs that herniated. Therefore, the hole size is not a predictor of the severity of the gastroschisis or omphalocele.

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Section: Discussionmentioning

confidence: 99%

Section: Discussionmentioning

confidence: 99%

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Investigation of a connection between abdominal wall defects and severity of the herniation in fetuses with gastroschisis and omphalocele

Logsdon

Gallo

Favorito

et al. 2021

Sci Rep

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“…One strength of our study is the relatively large sample size when compared to similar studies looking at accuracy of sonographic formulae in estimating weight in fetuses with AWDs. Nicholas et al 22 compared two different sonographic formulae to the Hadlock formula in accuracy of EFW and efficiency of screening for fetal growth restriction (FGR). Like our study, this was also a retrospective cohort study and included 76 fetuses (53 with gastroschisis and 23 with omphalocoele), and EFW was calculated using the Honarvar formula (using FL alone), Siemer’s formula as previously described, and the Hadlock formula.…”

Section: Discussionmentioning

confidence: 99%

Accuracy of sonographic estimation of weight in fetuses with abdominal wall defects

Spaulding

Edwards

Coombs

et al. 2020

Aust NZ J Obst Gynaeco

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Background: Accurate estimation of fetal weight is essential in guiding management of fetuses with abdominal wall defects (AWDs), as growth restriction is an important predictor of perinatal morbidity and mortality. Several sonographic formulae are available involving multiple biometric parameters, but abdominal circumference measurements may underestimate weight in fetuses with AWDs. No formula has yet shown superior accuracy. Aims: The objectives of this study were to evaluate, in fetuses with gastroschisis and omphalocoele, the accuracy of a sonographic estimated fetal weight (EFW) formula proposed by Siemer and colleagues, specifically for use in fetuses with AWDs compared to the commonly used Hadlock IV formula in estimating fetal weight, and detecting small for gestational age (SGA) fetuses. Materials and Methods: A retrospective cohort of 113 fetuses with AWDs was identified from an Australian teaching hospital over 13 years. Pregnancy data and sonographic fetal biometry parameters were obtained. The accuracy of each formula in predicting birthweight was compared using Bland-Altman limits of agreement, and the intraclass correlation coefficient between EFW and actual birthweight. Performance of each formula in detecting SGA fetuses was determined. Results: The Siemer and Hadlock formulae have similar accuracies for predicting birthweight in fetuses with AWDs. The Hadlock formula has a higher detection rate for SGA < 10 th centile and < 3 rd centile compared to the Seimer formula (84% vs 68% and 83% vs 67% respectively), albeit with a higher false-positive rate. Conclusion: There is no clear clinical advantage in using the Siemer formula, which is specifically designed for fetuses with AWDs, over the Hadlock formula to estimate weight in fetuses with AWDs.

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“…To assess estimated fetal weight in these fetuses can be difficult by the hernia as measurement of abdominal circumference may be inaccurate. ough some different algorithms have been proposed, we used the Hadlock formula placing the calipers around the abdominal wall and avoiding the hernia so that the ultrasound measuring tool drew the estimated circumference without the omphalocele [18]. All schedules were performed by the same two sonographers to minimize measurement mismatch.…”

Section: Discussionmentioning

confidence: 99%

Giant Isolated Omphalocele: Role of Prenatal Diagnosis in Prognostic Asessment and Perinatal Management

Cubo

Alcalde

Gastaca

et al. 2020

Case Reports in Medicine

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Omphalocele is a congenital malformation of the abdominal wall consisting of a protrusion of the abdominal contents at the base of the umbilical cord. It has a high association with genetic and structural defects; however, if the latter is ruled out, its prognosis improves significantly. Prenatal diagnosis has a key role in this condition as omphalocele can be diagnosed by ultrasound in the first trimester scan, enabling a coordinated approach strategy to achieve the best perinatal results. We present a case report of a pregnant patient with a fetus having a giant omphalocele in which prenatal diagnosis played a decisive role, allowing the coordination of a multidisciplinary team, which was crucial in the immediate care of the newborn.

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Estimation of Fetal Weight in Fetuses With Abdominal Wall Defects

Abstract: None of the 3 sonographic formulas is ideal for estimating fetal weight in fetuses with AWDs. The Siemer formula should be used when accuracy in the absolute EFW is the goal. For the purpose of making the more clinically relevant diagnosis of IUGR, use of the Hadlock formula is justified.

Cited by 27 publications

References 17 publications

Investigation of a connection between abdominal wall defects and severity of the herniation in fetuses with gastroschisis and omphalocele

Investigation of a connection between abdominal wall defects and severity of the herniation in fetuses with gastroschisis and omphalocele

Accuracy of sonographic estimation of weight in fetuses with abdominal wall defects

Giant Isolated Omphalocele: Role of Prenatal Diagnosis in Prognostic Asessment and Perinatal Management

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