DOI: http://dx.doi.org/10.18203/2320-1770.ijrcog20193781

Clinical and sonographic estimation of fetal weight and correlation with the birth weight: a research article

Alvencia Vaz, Aheibam Bidya Devi, Naorem Nabakishore Singh, Wahengbam Jatishwor Singh, Laiphrakpam Ranjit Singh, Dylan Momin

Abstract


Background: Accurate estimation of fetal weight is of paramount importance in the management of labour and childbirth. In developing countries including India, estimation of fetal weight by clinical method is important as ultrasound is not available in all health care settings. In view of this, the present study was conducted to estimate the fetal weight assessed by clinical and ultrasound method and correlating with the birth weight.

Methods: A cross-sectional study was conducted to estimate fetal weight clinically by using Johnson’s formula and sonographically based on Hadlock’s formula in the Department of Obstetrics and Gynecology in collaboration with Department of Radiodiagnosis, Regional Institute of Medical Sciences, Imphal from October 2016 to March 2018. The study consisted of 525 pregnant women between 37 to 40 weeks of gestation in whom delivery was anticipated within one week of fetal weight estimation by clinical and ultrasound method and correlating it with the baby’s birth weight measured immediately after delivery. Analysis was done using Chi-square and Student’s t-test and p-value of <0.05 was taken as significant.

Results: Both methods showed positive correlation with birth weight but clinical method (r=0.925) had stronger correlation compared with ultrasound method (r=0.508).

Conclusions: Fetal weight estimation using Johnson’s formula had stronger correlation with the birth weight than ultrasound method and hence, useful for developing countries and all health care workers may be sensitized about the method.

 


Keywords


Birth weight, Fetal weight, Hadlock’s formula,Johnson’s formula, Symphysio-fundal height, Ultrasound

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References


Sherman DJ, Arieli S, Tovbin J, Siegel G, Caspi E, Bukovsky I. A comparison of clinical and ultrasonic estimation of fetal weight. Obstet Gynecol. 1998;91(2):212-7.

Chauhan SP, Hendrix NW, Magann EF, Morrison JC, Kenney SP, Devoe LD. Limitations of clinical and sonographic estimates of birth weight: experience with 1034 parturients. Obstet Gynecol. 1998;91(1):72-7.

Kumari A, Goswami S, Muherjee P. Comparative study of various methods of foetal weight estimation in term pregnancy. J South Asian Feder Obst Gynae. 2013;5(1):22-5.

Herrero RL, Fitzsimmons J. Estimated foetal weight: maternal versus physician estimate. J Reprod Med. 1999;44(8):674-8.

Dudley NJ. A systematic review of the ultrasound estimation of fetal weight. Ultrasound Obstet Gynecol. 2005;25(1):80-9.

Melamed N, Yogev Y, Meizner I, Mashiach R, Bardin R, Ben-Haroush A. Sonographic foetal weight estimation: which model should be used? J Ultrasound Med. 2009;28(5):617-29.

Abdulrazak HA, Mandan DR. Foetal body weight: how far the clinical and Sonographic estimation can coincide and their correlation with the actual birth weight. Iraqi J Comm Med. 2013;2(1):180-3.

Kavitha B, Prabhakar GC, Shaivalini K, Suprada K. A comparative study of fetal weight estimation using ultrasound and Johnson’s formula and its correlation with actual birth weight. Int J Sci Res. 2014;3(2):389-90.

Ratwani K, Madkar CS, Deshpande HG, Jethani S. Comparative study for estimation of fetal weight by clinical and ultrasonographical methods in term patients. J Evol Med Dent Sci. 2014;3(10):2553-60.

Johnson RW, Tosach CE. Estimation of fetal weight using longitudinal mesuration. Am J Obstet Gynecol. 1954;68(3):891-6.

Hadlock FP, Harrist RB, Sharman RS, Deter RL, Park SK. Estimation of fetal weight with the use of head, body and femur measurements - a prospective study. Am J Obstet Gynecol. 1985;151(3):333-7.

Njoku C, Emechebe C, Odusolu P, Abeshi S, Chukwu C, Ekabua J. Determination of accuracy of foetal weight using ultrasound and clinical foetal weight estimations in Calabar South, South Nigeria. Int Sch Res Notices. 2014;2014:234-9.

Shittu AS, Kuti O, Orji EO, Makinde NO, Ogunniyi SO, Ayoola OO, et al. Clinical versus sonographic estimation of fetal weight in southwest Nigeria. J Health Popul Nutr. 2007;25(1):14-23.

Titapant V, Chawanpaiboon S, Mingmitpatanakul K. A comparison of clinical and ultrasound estimation of fetal weight. J Med Assoc Thai. 2001;84(9):1251-7.

Ugwu EO, Udealor PC, Dim CC, Obi SN, Ozumba BC, Okeke DO, et al. Accuracy of clinical and ultrasound estimation of fetal weight in predicting actual birth weight in Enugu, Southeastern Nigeria. Niger J Clin Pract. 2014;17(3):270-5.

Noumi G, Collado-Khoury F, Bombard A, Julliard K, Weiner Z. Clinical and sonographic estimation of foetal weight performed during labour by residents. Am J Obstet Gynecol. 2005;192(5):1407-9.

Baum JD, Gussman D, Wirth JC. Clinical and patient estimation of fetal weight versus ultrasound estimation. J Reprod Med. 2002;47(3):194-8.

Prechapanich J, Thitadilok W. Comparison of the accuracy of fetal weight estimation using clinical and sonographic methods. J Med Assoc Thai. 2004;87(3):1-7.

Torloni MR, Sass N, Sato JL, Renzi AC, Fukuyama M, Rubia LP. Clinical formulas, mother’s opinion and ultrasound in predicting birth weight. Sao Paulo Med J. 2008;126(3):145-9.

Ashwini I, Shweta AK, Sneha S. Clinical versus ultrasonographic fetal weight estimation and its correlation with actual birth weight. Int J Reprod Contracept Obstet Gynecol. 2019;8(2):503-12.

Anapurna K, Rama Ch, Ramamani C. A comparative study of fetal weight estimation at term by clinical method and ultrasound method and after delivery. Indian J Appl Res. 2015;5(6):118-23.

Zahran M, Tohma AY, Erkaya S, Evliyaoglu O, Colak E, Coskun B. Analysis of the effectiveness of ultrasound and clinical examination methods in fetal weight estimation for term pregnancies. Turk J Obstet Gynecol. 2015;12(4):220-5.

Helali EA, Sayed A, Ali HW. Sonographic versus clinical fetal weight estimation accuracy. Austin Gynecol Case Rep. 2018;3(1):1-5.

Yiheyis A, Alemseged F, Segni H. Johnson’s formula for predicting birth weight in pregnant mothers at Jimma university teaching hospital, South West Ethiopia. Med J Obstet Gynecol. 2016;4(3):1087-95.

Ugwa EA. Advances in clinical estimation of foetal weight before delivery. Niger J Basic Clin Sci. 2015;12(2):67-73.