IMPROVING THE ACCURACY OF CALCULATION WEIGHTS BY VISUAL INPUT: A PILOT STUDY IN THE EMERGENCY DEPARTMENT OF A LOW MIDDLE-INCOME COUNTRY

Authors

  • A IRFAN Department of Emergency, Shifa International Hospital Islamabad, Pakistan
  • Z IJAZ Department of Emergency, Shifa International Hospital Islamabad, Pakistan
  • AF ALI Department of Emergency, Shifa International Hospital Islamabad, Pakistan
  • AS KHAN Department of Emergency, Shifa International Hospital Islamabad, Pakistan

DOI:

https://doi.org/10.54112/bcsrj.v2024i1.652

Keywords:

Weight estimation, Height-based, Resource-constrained settings, Correction factors, Precision

Abstract

Accurate weight estimation is critical in emergency medical scenarios requiring immediate interventions. This pilot study explores the feasibility of improving weight calculation accuracy through visual input, focusing on height-based estimations. The research aims to contribute valuable insights to weight estimation methodologies, particularly in resource-constrained settings. The objective of the pilot study is to explore the feasibility of improving weight calculation accuracy through visual input, focusing on height-based estimations. Data was collected encompassing diverse height ranges from 1.45 to 1.94 meters. Comprehensive datasets included actual body weights, estimated weights, standard deviation, and standard error. eBW(kg) = (N− 1)100 is the estimated body weight method, where "N" is the height measured in meters. Body weight classifications were employed to analyze the accuracy of estimations further. Correction factors for everyone were computed. The correction factor separates the obtained data into underweight, close to actual weight, and overweight. Following optimization, the average correction factor for every category is updated. These updated correction factors improve weight estimation precision. Linear regression analyses were conducted to compare actual and estimated weights, visually representing the discrepancies. The calculated correction factors are essential to improving weight calculations in medicine. The thorough research and improvement procedure resulted in revised correction factors significantly improving the precision of weight estimates in the medical field. We can say that the following equation provides a more accurate weight estimate. Wt corrected = (N-1) x 100 x Correction Factor. This revised weight is an enhanced estimate that considers the updated correction factors. The calculated correction variables are essential to improving weight estimations in medicine. The thorough research and improvement procedure resulted in revised correction factors that significantly improved the precision of weight estimations in the medical field. The derived correction factors demonstrate their effectiveness in enhancing weight estimations, notably in specific patient groups. The investigation classifies patients and delivers precise modifications to improve weight estimations, ensuring safer prescribing procedures. The proposed correction variables will be critical in evaluating emergency medicine doses for individuals.

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References

Aasvee, K., Rasmussen, M., Kelly, C., Kurvinen, E., Giacchi, M. V., and Ahluwalia, N. (2015). Validity of self-reported height and weight for estimating the prevalence of overweight among Estonian adolescents: the Health Behaviour in School-aged Children study. BMC research notes 8, 1-9.

Ackwerh, R., Lehrian, L., and Nafiu, O. O. (2014). Assessing the accuracy of standard pediatric age-based weight estimation formulae. Anesthesia & Analgesia 118, 1027-1033.

Bloomfield, R., Steel, E., MacLennan, G., and Noble, D. W. (2006). Accuracy of weight and height estimation in an intensive care unit: Implications for clinical practice and research. Critical care medicine 34, 2153-2157.

Breuer, L., Nowe, T., Huttner, H. B., Blinzler, C., Kollmar, R., Schellinger, P. D., Schwab, S., and Köhrmann, M. (2010). Weight approximation in stroke before thrombolysis: the WAIST-Study: a prospective observational “dose-finding” study. Stroke 41, 2867-

Cattermole, G. N., Graham, C. A., and Rainer, T. H. (2017). Mid-arm circumference can be used to estimate weight of adult and adolescent patients. Emergency Medicine Journal 34, 231-236.

Cullen, D. J., Sweitzer, B. J., Bates, D. W., Burdick, E., Edmondson, A., and Leape, L. L. (1997). Preventable adverse drug events in hospitalized patients: a comparative study of intensive care and general care units. Critical care medicine 25, 1289-1297.

Fletcher, G. S. (2019). "Clinical epidemiology: the essentials," Lippincott Williams & Wilkins.

Hall II, W. L., Larkin, G. L., Trujillo, M. J., Hinds, J. L., and Delaney, K. A. (2004). Errors in weight estimation in the emergency department: comparing performance by providers and patients. The Journal of Emergency Medicine 27, 219-224.

Luscombe, M., and Owens, B. (2007). Weight estimation in resuscitation: is the current formula still valid? Archives of disease in childhood 92, 412-415.

Luscombe, M. D., Owens, B. D., and Burke, D. (2011). Weight estimation in pediatrics: a comparison of the APLS formula and the formula ‘Weight= 3 (age)+ 7’. Emergency Medicine Journal 28, 590-593.

Nasiri, E., and Nasiri, R. (2013). Accuracy of estimation of total body weight by legs and head weight measuring and comparison method in the anesthetized patients. Anesthesia, Essays and Researches 7, 341.

Pfitzner, C., May, S., and Nüchter, A. (2018). Body weight estimation for dose-finding and health monitoring of lying, standing, and walking patients based on RGB-D data. Sensors 18, 1311.

Phelan, S. M., Burgess, D. J., Yeazel, M. W., Hellerstedt, W. L., Griffin, J. M., and van Ryn, M. (2015). Impact of weight bias and stigma on quality of care and outcomes for patients with obesity. Obesity Reviews 16, 319-326.

Stehman, C. R., Buckley, R. G., Dos Santos, F. L., Riffenburgh, R. H., Swenson, A., Mulligan, S., Mjos, N., and Brewer,

M. (2011). Bedside estimation of patient height for calculating ideal body weight in the emergency department. The Journal of Emergency Medicine 41, 97- 101.

Takata, M. N., Benumof, J. L., and Mazzei, W. J. (2001). The preoperative evaluation form: Assessment of quality from one hundred thirty-eight institutions and recommendations for a high-quality form. Journal of clinical anesthesia 13, 345-352.

Wells, M., Goldstein, L. N., and Bentley, A. (2017). The accuracy of emergency weight estimation systems in children—a systematic review and meta-analysis. International Journal of Emergency Medicine 10, 1-43.

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Published

2024-02-14

How to Cite

IRFAN , A., IJAZ , Z., ALI , A., & KHAN , A. (2024). IMPROVING THE ACCURACY OF CALCULATION WEIGHTS BY VISUAL INPUT: A PILOT STUDY IN THE EMERGENCY DEPARTMENT OF A LOW MIDDLE-INCOME COUNTRY. Biological and Clinical Sciences Research Journal, 2024(1), 652. https://doi.org/10.54112/bcsrj.v2024i1.652