A Comparative Analysis of Ideal Body Weight Methods for Pediatric Mechanical Ventilation

Respiratory Care
Jeffrey R BilharzCraig D Smallwood

Abstract

A universal method for determining ideal body weight (IBW) for the application of appropriate tidal volumes in children on mechanical ventilation is elusive. We sought to compare 3 commonly used IBW methods for subjects between ages 2 and 20 y. Demographic data were recorded, and the IBW was calculated based on the McLaren-Read, Moore, and body mass index methods by using growth chart data from the Centers for Disease Control and Prevention. The percentage error between each IBW method and the actual body weight were calculated and reported as median (interquartile range). We decided a priori that a ≥10% difference between the actual body weight and IBW would be clinically important. The Wilcoxon signed-rank test was used to compare the actual body weight with the IBW. Bland-Altman analysis was used to assess the individual agreement of each IBW method with the actual body weight. The Kruskal-Wallis test was used to detect differences among the IBW methods. A total of 58 subjects (36% female) were analyzed. The median (interquartile range) percent weight error between the actual body weight and calculated the IBW was 14.8% (1.9-22.1%, P = .038), 13.8% (4.6-23.4%, P = .008), and 12.0% (3.9-20.5%, P = .037); the mean biases were ...Continue Reading

Citations

Mar 25, 2020·Pediatric Critical Care Medicine : a Journal of the Society of Critical Care Medicine and the World Federation of Pediatric Intensive and Critical Care Societies·Judith Ju Ming WongJan Hau Lee
Jul 6, 2019·Pediatric Critical Care Medicine : a Journal of the Society of Critical Care Medicine and the World Federation of Pediatric Intensive and Critical Care Societies·Leonardo C V F de SouzaWerther Brunow de Carvalho
Mar 29, 2021·Resuscitation·Patrick Van de VoordeIan Maconochie
Jun 8, 2021·Notfall & Rettungsmedizin·Patrick Van de VoordeIan Maconochie

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