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Obesity Surgery
Published in: Obesity Surgery 6/2020

01-06-2020 | Obesity | Brief Communication

Practical Estimation of Ideal Body Weight and Normalized Lean Weight

Author: John H P Friesen

Published in: Obesity Surgery | Issue 6/2020

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Abstract

Simple formulas for estimating ideal body weight (IBW) and normalized lean weight (NLW) are proposed here. The equations are as follows:
$$ \mathrm{IBW}=W\times 22/\mathrm{BMI} $$
$$ \mathrm{NLW}=W\times \sqrt{22/\mathrm{BMI}\;} $$
where W is equal to total patient weight in kilograms and BMI is the body mass index in units of kg/m2. The calculated values are equivalent for practical purposes to previously published formulas.
Literature
1.
De Baerdemaeker L, Margarson M. Best anaesthetic drug strategy for morbidly obese patients. Curr Opin Anaesthesiol. 2016;29(1):119–28.CrossRef
2.
Nafiu OO, Mills K, Tremper KK. Some cautionary tales about ideal body weight dosing of anesthetic medications: it is not all that ideal! Anesth Analg. 2018;127(2):586–8.CrossRef
3.
Bauer LA, Edwards WA, Dellinger EP, et al. Influence of weight on aminoglycoside pharmacokinetics in normal weight and morbidly obese patients. Eur J Clin Pharmacol. 1983;24(5):643–7.CrossRef
4.
Lemmens HJM, Brodsky JB, Bernstein DP. Estimating ideal body weight--a new formula. Obes Surg. 2005 Aug;15(7):1082–3.CrossRef
5.
Ingrande J, Lemmens HJM. Dose adjustment of anaesthetics in the morbidly obese. Br J Anaesth. 2010;105(Suppl 1):i16–23.CrossRef
6.
Bouillon T, Shafer SL. Does size matter? Anesthesiology. 1998 Sep;89(3):557–60.CrossRef
7.
Friesen JHP. Propofol induction: normalizing the dose in morbidly obese patients. Can J Anesth. 2017;64(5):456–60.CrossRef
8.
Janmahasatian S, Duffull SB, Ash S, et al. Quantification of lean bodyweight. Clin Pharmacokinet. 2005;44(10):1051–65.CrossRef
9.
Friesen JHP. Lean-scaled weight: a proposed weight scalar to calculate drug doses for obese patients. Can J Anesth. 2013 Feb;60(2):214–5.CrossRef
10.
Ginzburg L, Damuth J. The space-lifetime hypothesis: viewing organisms in four dimensions, literally. Am Nat. 2008 Jan;171(1):125–31.CrossRef
Metadata
Title
Practical Estimation of Ideal Body Weight and Normalized Lean Weight
Author
John H P Friesen
Publication date
01-06-2020
Publisher
Springer US
Keywords
Obesity
Obesity
Published in
Obesity Surgery / Issue 6/2020
Print ISSN: 0960-8923
Electronic ISSN: 1708-0428
DOI
https://doi.org/10.1007/s11695-019-04380-8

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