Estimation of Fetal Weight and Its Correlation With Actual Birth Weight by Sonographic Measurement of Fetal Abdominal Subcutaneous Tissue Thickness (Fastt)

Singh, Arvinder; Chander, Ramesh; Singh, Simar Rajan; Kumari, Shweta

doi:10.14260/jemds/2014/3244

Cited by 5 publications

(3 citation statements)

References 5 publications

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“…Singh et al [15] agreed to our results; the birth weight was divided according to the percentile in three groups according to which results were statistically significant (p < 0.001). Average subcutaneous tissue thickness in babies having a birth weight between 10th and 90th percentile was 5.4 mm.…”

Section: Discussionsupporting

confidence: 90%

Ultrasound measurement of fetal abdominal subcutaneous tissue thickness as a predictor of large versus small fetuses for gestational age

Khalifa

Hassanein

Eid

2019

Egypt J Radiol Nucl Med

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Background: Commonly used ultrasound fetal weight estimation formulas show variable degrees of error which is more evident in fetuses with nutritional and metabolic issues; better accuracy of fetal weight estimation can be obtained by incorporation of fetal soft tissue parameters like the fetal subcutaneous tissue in the weight estimation process. The aim of this study was to assess the accuracy of fetal abdominal subcutaneous tissue thickness (FASTT) as an indicator of fetal birth weight. Results: FASTT showed a high significant statistical correlation with fetal birth weight (r = 0.94, P value = 0.00); it showed higher sensitivity for large for gestational age (LGA) than small for gestational age (SGA) (90.9% and 86.9%, respectively). The best cutoff value for the detection of LGA was ≥ 9.2 mm and ≤ 4.5 for SGA. FASTT showed lower accuracy than abdominal circumference (AC) as an indicator of LGA (92% versus 96%, respectively). Used alone, FASTT is less sensitive than Hadlock formula in both LGA and SGA (90.9% versus 94.5% in LGA and 86.9% versus 88.9% for SGA, respectively). There was no statistical correlation between FASTT and mode of delivery (r = 0.09, P value = 0.23) nor fetal gender (r = 0.15, P value = 0.11) Conclusion: FASTT is a good indicator of fetal birth weight especially LGA, yet it is less sensitive than AC in the prediction of LGA. It cannot be used as a predictor of mode of delivery and not affected by fetal gender.

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Section: Discussionsupporting

confidence: 90%

Ultrasound measurement of fetal abdominal subcutaneous tissue thickness as a predictor of large versus small fetuses for gestational age

Khalifa

Hassanein

Eid

2019

Egypt J Radiol Nucl Med

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“…Various other researchers have proved a positive correlation between FASTT and BW. [6][7][8] However, most of the work was done in term healthy pregnant women. Hardly, there are any studies to find the correlation between FASTT and BW in a specific population of pregnant women having gestational diabetes.…”

Section: Discussionmentioning

confidence: 99%

Role of Fetal Abdominal Subcutaneous Tissue Thickness in Predicting Large for Gestational Age in Gestational Diabetes

Smitha¹,

Pallavee²

2021

Annals of SBV

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Background: Gestational diabetes mellitus (GDM) is one of the most prevalent metabolic complications in pregnancy associated with adverse pregnancy outcomes, one of which is large for gestational age (LGA) baby. Large for gestational age fetuses have increased subcutaneous fat deposition in the abdomen. This can be measured by fetal abdominal subcutaneous tissue thickness (FASTT) using ultrasound. This review has highlighted the usefulness of FASTT as a predictor of LGA neonate in GDM. Objectives: The present review is aimed to determine the usefulness of FASTT measurement as a predictor of large for gestational age neonate in gestational diabetes mellitus. Materials and methods: An electronic search strategy was used to select the studies from different databases like PubMed, Google Scholar, SciELO, Research Gate. A combination of keywords like FASTT, GDM, birth weight (BW), and ultrasound was used to select the studies. Inclusion criteria were English language, duration of search 15 years, cohort, and observational studies only. However, systematic reviews and metaanalyses were excluded from the review. The total number of articles reviewed was 48 out of which only 12 articles fulfilled the inclusion criteria. The selected articles were further assessed for the quality of the research and included in the review. Conclusion:Fetal abdominal subcutaneous tissue thickness had a positive correlation with BW and can discriminate between small for gestational age (SGA), appropriate for gestational age (AGA), and LGA neonates. Fetal abdominal subcutaneous tissue thickness is a useful tool to predict LGA neonates in GDM.

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“…The estimated fetal weight was calculated from the regression equation weight formula: = 0.36 × SCT + 1.284. This formula was used in a study 2014 by Singh et al [9] Results from both formulas were compared with fetal weight obtained by Hadlock formula: log(10) BW = 1.335 − 0.0034 [AC] [FL] + 0.0316 (BPD) + 0.0457 (AC) + 0.1623 (FL) and actual birthweight.…”

Section: Methodsmentioning

confidence: 99%

Fetal Thigh Circumference versus Fetal Abdominal Subcutaneous Tissue Thickness in Prediction of Fetal Weight in Term Pregnant Women

El-Mandooh,

Hassan,

Safwat

2023

OJOG

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Background: Fetal weight estimation by ultrasound is an important factor in obstetrics; it is directly related to the gestational age which helps to plan the mode of delivery and labor management. Objective: to compare between fetal thigh circumference (TC) and abdominal subcutaneous tissue thickness (SCT) in estimating birthweight in term pregnant women. Patients and Methods: This prospective cohort study was conducted at outpatient clinic or emergency room, Obstetrics and Gynecology Department, Faculty of Medicine, Ain Shams University Maternity Hospitals from March 2022 until May 2023. During this study, 100 term pregnant females with gestational age 37 -40 weeks attended El Demerdash Maternity Hospital and scheduled for delivery either at outpatient clinic or emergency room were enrolled, after consenting each of them. Basic fetal biometry was performed by an expert and professional medical personnel to ensure the accuracy of examination results. Fetal abdominal subcutaneous thickness and fetal thigh circumference were measured for assessment of gestational age and correlated with actual fetal body weight. In the current study, three formulas; Hadlock, Vintzileos' and SCT formula were correlated with actual fetal body weight after birth. Results: The present study revealed that TC formula is closer to the actual birth weight, followed by Hadlock formula, while the SCT formula is the furthest from it. Conclusion: To increase the accuracy of birth estimations, regular ultrasound examinations should include fetal thigh circumference measurement.

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Estimation of Fetal Weight and Its Correlation With Actual Birth Weight by Sonographic Measurement of Fetal Abdominal Subcutaneous Tissue Thickness (Fastt)

Cited by 5 publications

References 5 publications

Ultrasound measurement of fetal abdominal subcutaneous tissue thickness as a predictor of large versus small fetuses for gestational age

Ultrasound measurement of fetal abdominal subcutaneous tissue thickness as a predictor of large versus small fetuses for gestational age

Role of Fetal Abdominal Subcutaneous Tissue Thickness in Predicting Large for Gestational Age in Gestational Diabetes

Fetal Thigh Circumference versus Fetal Abdominal Subcutaneous Tissue Thickness in Prediction of Fetal Weight in Term Pregnant Women

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