Abstract
OBJECTIVES: To study the correlation between fetal abdominal subcutaneous fat thickness (FASTT) and actual birth weight. METHODS: Fifty women with normal singleton pregnancy underwent sonography at 37-39weeks of gestation. Subcutaneous fat measurement of fetal abdomen was done at the about 2cm from the site of entry of umbilical vein into the fetal abdomen. It was then correlated with the actual fetal weight. RESULTS: Birth weight was divided into three groups for analytic purposes. Group I-weight less than 10th percentile, Group II-10th to 90th percentile and Group III more than 90th percentile. Subcutaneous fat had a high degree of correlation with actual birth weight. The mean subcutaneous fat thickness varied significantly as in Group I3.7mm, Group II-5.4mm and Group III-6.1mm (p value<0.001)with average fat thickness of newborns having birth weight between 10th-90th percentile was 5.4mm.Conclusion:-Foetal Subcutaneous fat thickness correlates well with actual birth weight and is a useful predictor of foetal growth abnormalities.
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