Munawar Afzal, Muhammad Azhar Farooq, Noor Fatima Said.
Examine the Accuracy of Ultrasound in Estimation of Fetal weight and Comparison with Post Delivery Birth weight.
Pak J Med Health Sci Jan ;13(2):273-5.

Aim: To determine the accuracy of ultrasonography in estimation of fetal weight and comparison with post delivery birth weight. Methods: This cross-sectional study was conducted at Department of Gynaecology and Obstetrics Sughra Shafi Medical Complex affiliated with Sahara Medical College, Narowal, from 1st January to 30th June 2018. In this study, 265 pregnant women of ages 20 years to 40 years were randomly selected. After taking informed consent from all pregnant women, detailed evaluation of all patients was done by thorough history examination and investigations. Literacy level, socio-economic status, patient’s weight, height and parity were also noted. Fetal weight at 37-42 weeks of gestation was estimated by using ultrasound and compared it to post delivery birth weight. Results: Out of all 265 patients, 144(54.33%) patient’s ages were between 20 to 30 years, 90(33.96%) patients were between 30 to 35 years and rest 31(11.70%) had ages greater than 35 years. Patient’s weight was in range between 50kg to 90 kg. Minimum fetal weight was observed as 2.3 0kg while maximum was 4.60kg at 37-42 weeks gestation. After birth weight accuracy of ultrasound resulted 71.70%. Error estimation was noted as 71.70%, 15.09% and 13.20% as accurate, over and under estimated. Conclusion: Estimation of fetal weight by ultrasound is a good option with high accuracy, however chances of error are prevalent upto +/-13%.

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