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Critical Care

, 18:139

First Online: 01 May 2014


Body cell mass BCM is the metabolically active cell mass involved in O2 consumption, CO2 production and energy expenditure. BCM measurement has been suggested as a tool for the evaluation of nutritional status. Since BCM is closely related to energy expenditure, it could also represent a good reference value for the calculation of nutrient needs. In a recent issue of Critical Care, Ismael and colleagues used bioelectrical impedance analysis parameters and anthropometric variables to evaluate BCM in patients with acute kidney injury, before and after a hemodialysis session. The results of this study suggest that BCM is relatively insensitive to major body fluid shifts, a well known factor interfering with nutritional evaluation-monitoring and energy need calculations in the ICU. Thus, BCM seems to be a more -stable- nutritional variable, as it is apparently less influenced by non-nutritional factors. The results of this paper emphasize the need to identify biologically sound parameters for nutritional status evaluation and energy need calculation in critically ill patients; in this regard, BCM could fulfill these expectations.

AbbreviationsBCMBody cell mass

BIABioelectrical impedance analysis.

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Autor: Enrico Fiaccadori - Santo Morabito - Aderville Cabassi - Giuseppe Regolisti


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