ACCURACY OF ULTRASOUND COMPARED TO CLINICAL ESTIMATE OF ESTIMATED FETAL WEIGHT

Main Article Content

Almas Yasmeen
Rakhshanda Aslam
Fareeha Tayyab
Laraib Malik
Sadaf Afroze
Shakara Tabasam

Abstract

Objective:


To evaluate accuracy of ultrasonography with clinical examination in assessing fetal weight with birth weight in actual considering as the gold standard.
Methodology:


From January to July 2022, the Department of Obstetrics and Gynaecology at Pak Emirates Military Hospital, Rawalpindi, conducted a study comparing Leopold's procedures and ultrasonic review for estimating fetal weight. Actual birth weight served as the gold standard. Data was collected from women starting at 34 weeks of gestational age. Neonatal outcomes and maternal demographic data were noted. Comparison metrics included overall absolute error, overall absolute percent error, and percent errors greater than 10% and 20%. Results highlighted the accuracy of both methods in estimating fetal weight.
Results:


A total of 377 pregnant women with singleton term pregnancies were recruited for study with average gestational age 3of 8+4 weeks gestation including 65.7% primiparous women, 34.3% women were obese and 11.3% had gestational diabetes with 2.9% huge for gestational age infants. Statistical analysis revealed that a significant difference was noted for estimation of weights in favor of ultrasonic measures for all error estimation groups.
Conclusion:


Ultrasound has significantly better accuracy in estimation of fetal weight as compared to clinical examination in pregnant women.

Article Details

How to Cite
1.
Yasmeen A, Aslam R, Tayyab F, Malik L, Afroze S, Tabasam S. ACCURACY OF ULTRASOUND COMPARED TO CLINICAL ESTIMATE OF ESTIMATED FETAL WEIGHT. J Postgrad Med Inst [Internet]. 2023 Aug. 27 [cited 2024 Dec. 4];37(3):208-12. Available from: https://jpmi.org.pk/index.php/jpmi/article/view/3227
Section
Original Article

References

Roberts LA, Ling HZ, Poon LC, Nicolaides KH, Kametas NA. Maternal hemodynamics, fetal biometry and Doppler indices in pregnancies followed up for suspected fetal growth restriction. Ultrasound in Obstetrics & Gynecology. 2018;52(4):507-14. DOI: 10.1002/uog.19067

Iliodromiti S, Mackay DF, Smith GC, Pell JP, Sattar N, Lawlor DA, Nelson SM. Customised and noncustomised birth weight centiles and prediction of stillbirth and infant mortality and morbidity: a cohort study of 979,912 term singleton pregnancies in Scotland. PLoS medicine. 2017;14(1):e1002228. DOI: 10.1371/journal.pmed.1002228

Majrooh MA, Hasnain S, Akram J, Siddiqui A, Memon ZA. Coverage and quality of antenatal care provided at primary health care facilities in the ‘Punjab’ province of ‘Pakistan.’ PLoS One. 2014;9(11):e113390. DOI: 10.1371/journal.pone.0113390

Hammami A, Mazer Zumaeta A, Syngelaki A, Akolekar R, Nicolaides KH. Ultrasonographic estimation of fetal weight: development of new model and assessment of performance of previous models. Ultrasound Obstet Gynecol. 2018;52:35-43. DOI: 10.1002/uog.19066.

Leopold G, Spoerlin D. The management of regular deliveries through external examination only. Arch Gynakol. 1894;45:337-68.

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. DOI: 10.1016/0002-9378(85)90298-4.

Fleming A, Riva JD, McAdoo G. Estimation of fetal weight by ultrasound in term pregnancy. J Diagn Med Sonogr. 1996;12(1):7-10. DOI: 10.1177/857647939601200102.

Preyer O, Husslein H, Concin N, Ridder A, Musielak M, Pfeifer C, et al. Fetal weight estimation at term–ultrasound versus clinical examination with Leopold’s manoeuvres: a prospective blinded observational study. BMC Pregnancy Childbirth. 2019;1-9. DOI: 10.1186/s12884-019-2251-5

Shepard MJ, Hellenbrand KG, Bracken MB. Proportional weight gain and complications of pregnancy, labor, and delivery in healthy women of normal prepregnant stature. Am J Obstet Gynecol. 1986;155(5):947–54. DOI: 10.1016/0002-9378(86)90323-6.

Aye AA, Agida TE, Babalola AA, Isah AY, Adewole ND. Accuracy of ultrasound estimation of fetal weight at term: A comparison of shepard and hadlock methods. Ann Afr Med. 2022;21(1):49-53. DOI: 10.4103/aam.aam_76_20.

Wanjaria DK, Kamau K. Accuracy of ultrasound versus clinical fetal weight estimation at term with actual birth weight in Kenyatta National Hospital. Eur J Health Sci. 2017;1(1):22-42. DOI:10.47672/ejhs.147

Adler D, Mgalula K, Price D, Taylor O. Introduction of a portable ultrasound unit into the health services of the Lugufu refugee camp, Kigoma District, Tanzania. Int J Emerg. 2008; 1(4):261-6. DOI: 10.1007/s12245-008-0074-7.

Dean AJ, Ku BS, Zeserson EM. The utility of handheld ultrasound in an austere medical setting in Guatemala after a natural disaster. Am J Disaster Medicine. 2007; 2(5):249-56.

World Health Organization, ICM, FIGO. Making Pregnancy Safer: The Critical Role of Skilled Attendants: Statement. Geneva: WHO; 2004.

De Brouwere V, Van Lerberghe W. Safe motherhood strategies: a review of the evidence. ITGPress; 2001.

Nguyen T, Hawkins CJ, Amon E, Gavard J. Effect of maternal weight on accuracy of maternal and physician estimate of fetal weight. J Reprod Med. 2013; 58:200-4. PMID: 23763003.

Hirata GI, Medearis AL, Horenstein J, Bear MB, Platt LD. Ultrasonographic estimation of fetal weight in the clinically macrosomic fetus. Am J Obstet Gynecol. 1990;162(1):238-42. DOI: 10.1016/0002-9378(90)90857-4

Shamley KT, Landon MB. Accuracy and modifying factors for ultrasonographic determination of fetal weight at term. Obstet Gynecol. 1994;84(6):926-30 PMID: 7970471.

Dar P, Weiner I, Sofrin O, Sachs GS, Bukovsky I, Arieli S. Clinical and sonographic fetal weight estimates in active labor with ruptured membranes. J Reprod Med. 2000; 45:390-4. PMID: 10845172.

Chien PF, Owen P, Khan KS. Validity of ultrasound estimation of fetal weight. Obstet Gynecol. 2000; 95(6):856-60. DOI: 10.1016/S0029-7844(00)00828-0