• Pediatric research · Jan 2018

    Multicenter Study

    Accuracy of weight estimation by the Broselow tape is substantially improved by including a visual assessment of body habitus.

    • Mike Wells, Lara Goldstein, and Alison Bentley.
    • Division of Emergency Medicine, Faculty of Health Sciences, University of the Witwatersrand, Parktown, Johannesburg, South Africa.
    • Pediatr. Res. 2018 Jan 1; 83 (1-1): 83-92.

    AbstractBackgroundThe Broselow tape (BT) has been shown to estimate weight poorly primarily because of variations in body habitus. The manufacturers have suggested that a visual assessment of habitus may be used to increase its performance. This study evaluated the ability of habitus-modified models to improve the accuracy thereof.MethodsA post hoc analysis of prospectively collected data from four hospitals in Johannesburg, South Africa, on a population of 1,085 children. Sixteen a priori models generated a modified weight estimation or drug dose based on the BT weight and a gestalt assessment of habitus.ResultsThe habitus-modified method suggested by the manufacturer did not improve the accuracy of the BT. Five dosing and four weight-estimation models were identified that markedly improved dosing and weight estimation accuracy, respectively. The best dosing model improved dosing accuracy (doses within 10% of correct dose) from 52.0 to 69.6% and reduced critical dosing errors from 16.5 to 4.3%. The best weight-estimation model improved accuracy from 59.4 to 81.9% and reduced critical errors from 11.8 to 1.9%.ConclusionThe accuracy of the BT as a drug-dosing and weight-estimation device can be substantially improved by including an appraisal of body habitus in the methodology.

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