FETAL GESTATIONAL AGE ESTIMATION BY FETAL FOOT LENGTH MEASUREMENT AND FETAL FEMUR TO FOOT LENGTH RATIO IN INDIAN POPULATION - A PROSPECTIVE STUDY
Journal Title: Journal of Evolution of Medical and Dental Sciences - Year 2014, Vol 3, Issue 10
Abstract
[b]BACKGROUND:[/b] Multiple parameters are in use for the accurate assessment of the gestational age by ultrasound, but the literature suggests that fetal foot length can be used to estimate gestational age, when other parameters are not available for measurement. Foetal femur/ foot length ratio can help in differentiating the foeti that have dysplastic limb reduction, from those whose limbs are short because of constitutional factors/IUGR. A prospective study was done to measure the fetal foot length for gestational age and to evaluate fetal femur to foot length ratio in pregnant women of 16-37 weeks gestation. [b]MATERIALS & METHOD:[/b] One hundred and three normal singleton pregnant women of 16-37 weeks gestation were examined for routine obstetrics ultrasound. In these patients fetal foot length measurements were taken and the gestational age was assessed. In addition, fetal femur length to foot length ratio was calculated in each patient. [b]RESULTS/OBSERVATION[/b]: Linear relationship between foot length and gestational age was present with a R2 value of 0.90 (p < than 0.001) and the fetal femur length/foot length ratio was found to be more than or equal to 0.92.The foot length can be a reliable parameter for use in assessment of gestational age and as most skeletal dysplasias spare the feet, the fetal femur length/foot length ratio can be used to detect most skeletal dysplasia. [b]CONCLUSIONS[/b]: Foetal foot length is a reliable parameter for assessment of gestational age and femur length/foot length ratio is approximately 1 and a ratio of < 0.92 shall be useful in the detection of most skeletal dysplasia.
Authors and Affiliations
Mukta Mital, Prashant Gupta, Vineet Nanda
Keywords
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- EP ID EP111845
- DOI 10.14260/jemds/2014/2183
- Views 106
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