{"title":"Evaluating Accuracy of Foetal Weight Estimation by Clinicians in Christian Medical College Hospital, India and Its Correlation to Actual Birth Weight: A Clinical Audit","authors":"Aarati Susan Mathew, Radhika Narendra Patel, Jiji Mathew","volume":108,"journal":"International Journal of Medical and Health Sciences","pagesStart":809,"pagesEnd":813,"ISSN":"1307-6892","URL":"https:\/\/publications.waset.org\/pdf\/10002899","abstract":"A retrospective study conducted at Christian Medical\r\nCollege (CMC) Teaching Hospital, Vellore, India on 14th August\r\n2014 to assess the accuracy of clinically estimated foetal weight upon\r\nlabour admission. Estimating foetal weight is a crucial factor in\r\nassessing maternal and foetal complications during and after labour.\r\nMedical notes of ninety-eight postnatal women who fulfilled the\r\ninclusion criteria were studied to evaluate the correlation between\r\ntheir recorded Estimated Foetal Weight (EFW) on admission and\r\nactual birth weight (ABW) of the newborn after delivery. Data\r\nconcerning maternal and foetal demographics was also noted.\r\nAccuracy was determined by absolute percentage error and\r\nproportion of estimates within 10% of ABW. Actual birth weights\r\nranged from 950-4080g. A strong positive correlation between EFW\r\nand ABW (r=0.904) was noted. Term deliveries (\u226540 weeks) in the\r\nnormal weight range (2500-4000g) had a 59.5% estimation accuracy\r\n(n=74) compared to pre-term (<40 weeks) with an estimation\r\naccuracy of 0% (n=2). Out of the term deliveries, macrosomic babies\r\n(>4000g) were underestimated by 25% (n=3) and low birthweight\r\n(LBW) babies were overestimated by 12.7% (n=9). Registrars who\r\nestimated foetal weight were accurate in babies within normal weight\r\nranges. However, there needs to be an improvement in predicting\r\nweight of macrosomic and LBW foetuses. We have suggested the use\r\nof an amended version of the Johnson\u2019s formula for the Indian\r\npopulation for improvement and a need to re-audit once\r\nimplemented.","references":"[1] Jolly MC, Sebire NJ, Harris JP, Regan L, Robinson S. 2003. \u201cRisk\r\nfactors for macrosomia and its clinical consequences: a study of 350,311\r\npregnancies\u201d, European Journal of Obstetrics & Gynecology and\r\nReproductive Biology, Vol. 111, no.1, pp. 9-14\r\n[2] Patterson RM, Prihoda TJ, Gibbs CE, Wood RC. 1986. \u201cAnalysis of\r\nbirth weight percentile as a predictor of perinatal outcome\u201d, Obstetrics\r\nand Gynecology, Vol. 68, no. 4, pp. 459-63. [3] Wilcox AJ, Skjaerven R. 1992, \u201cBirth weight and perinatal mortality:\r\nthe effect of gestational age\u201d, American Journal of Public Health, Vol.\r\n82, no. 3, pp. 378-82\r\n[4] Baskett TF, Allen AC. 1995, \u201cPerinatal implications of shoulder\r\ndystocia\u201d, Obstetrics and Gynecology. Vol. 86, no. 1, pp. 14-7.\r\n[5] Boyd ME, Usher RH, McLean FH. 1983, \u201cFetal macrosomia: prediction,\r\nrisks, proposed management\u201d, Obstetrics and Gynecology, Vol. 61, no.\r\n6, pp. 715-22.\r\n[6] Ugwa EA, Gaya S, Ashimi A. 2015, \u201cEstimation of fetal weight before\r\ndelivery in low-resource setting of North-west Nigeria: can we rely on\r\nour clinical skills?\u201d, Journal of Maternal and Fetal Neonatal Medicine,\r\nVol. 28, no. 8, pp. 949-53\r\n[7] Nahum G, 2014. \u201cEstimation of Fetal Weight\u201d, Article last updated Sept\r\n2014. Last accessed 10\/7\/15. Available at:\r\nhttp:\/\/emedicine.medscape.com\/article\/262865-overview#showall\r\n[8] Sherman DJ, Arieli S, Tovbin J, Siegel G, Caspi E, Bukovsky IA. 1998,\r\n\u201cA comparison of clinical and ultrasound estimation of fetal weight\u201d,\r\nObstetrics and Gynaecology, Vol. 91, no. 2, pp. 212-7\r\n[9] Shittu, A.S., Kuti, O., Orji, E.O., Makinde, N.O., Ogunniy, S.O.,\r\nAyoola, O.O. & Sule, S.S. 2007, \"Clinical versus sonographic estimation\r\nof foetal weight in southwest Nigeria\", Journal of health, population,\r\nand nutrition, vol. 25, no. 1, pp. 14-23.\r\n[10] Levin I, Gamzu R, Buchman V, Skornick Rapaport A, Pauzner\r\nD, Lessing JB, Almog B. 2011, \u201cClinical estimation of fetal weight: Is\r\naccuracy acquired with professional experience? Fetal Diagnosis and\r\nTherapy, Vol no. 4, pp. 321\u2013324.\r\n[11] Belete, W. & Gaym, A. 2008, \"Clinical estimation of fetal weight in low\r\nresource settings: comparison of Johnson's formula and the palpation\r\nmethod\", Ethiopian Medical Journal, Vol. 46, no. 1, pp. 37-46.","publisher":"World Academy of Science, Engineering and Technology","index":"Open Science Index 108, 2015"}