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  • Title: A Reexamination of the Accuracy of the Broselow Tape as an Instrument for Weight Estimation.
    Author: Waseem M, Chen J, Leber M, Giambrone AE, Gerber LM.
    Journal: Pediatr Emerg Care; 2019 Feb; 35(2):112-116. PubMed ID: 28099296.
    Abstract:
    BACKGROUND: Accurate weight estimation is important for calculating appropriate medication dosages, determining rates of fluid replacement, and selecting correct equipment sizes in critically ill children requiring resuscitation. The actual measurement of the weight of a critically ill or injured child is often not possible. The Broselow Pediatric Emergency Tape (BT) is an important tool for predicting a child's weight based on his/her height. Although BT has previously been validated, given the increasing prevalence of obesity in today's society, it behooves clinicians relying on this resuscitation aid to revisit the issue. OBJECTIVE: The aim of this study was to evaluate the accuracy of the color-coded BT in weight estimation and the influence of obesity on its accuracy. METHODS: This is a retrospective study conducted in a pediatric clinic of urban hospital. This study reviewed the medical records of children up to 96 months of age, who presented during 2008-2010. We recorded the child's age (in months), actual (measured) weight (in kilograms), and height (in centimeters). Based on the height, weight estimation was obtained using the color-coded BT. The actual weight was compared with the predicted weight obtained by the height-based BT. Patients presenting with any medical condition that would substantially affect growth of the child were excluded. A univariate logistic regression model was utilized to predict any underestimation based on age, sex, and body mass index (BMI) percentile. RESULTS: The medical records of 538 children were reviewed. There was a discrepancy in 226 children (42%). Broselow Pediatric Emergency Tape underestimated weight (measured weight was higher than predicted weight) in 158 children (29.4%) and overestimated (measured weight was lower than predicted weight) in 68 children (12.6%). Of the 158 underestimated children, 138 were off by 1 color zone, 16 by 2 color zones, and 4 by more than 2 color zones. When characterized by BMI, 46 children (13.6%) had normal BMI, 27 (45.8%) were overweight, and 84 (80.8%) were obese, whereas one child (2.8%) was underweight. CONCLUSIONS: In our population, BT was inaccurate in predicting weight in 42% of children (underestimation in 158 children [29.4%] and overestimation weight in 68 children [12.6%]). However, the majority of discrepancies involved only 1 BT color zone. Emergency physicians should be aware of this discrepancy until more accurate methods become available.
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