Validation of the V(max) metabolic cart in a simulated pediatric model.
JPEN J Parenter Enteral Nutr
; 39(3): 353-8, 2015 Mar.
Article
em En
| MEDLINE
| ID: mdl-24658462
ABSTRACT
BACKGROUND:
The ability to accurately measure resting energy expenditure (REE) using indirect calorimetry, often referred to as the "gold standard" in nutrition needs assessment, is important given the well-established positive correlation between patient outcome and proportion of the nutrition goal met. While many studies have been done to compare various metabolic carts with one another, the literature lacks a large simulator-based validation of any metabolic cart system. MATERIALS ANDMETHODS:
In the present study, 8 specifically trained staff members independently conducted 10 simulation trials each using the V(max) Encore metabolic analyzer in conjunction with a metabolic calibration system, which simulates patient metabolic activity, to validate the accuracy of the V(max) Encore across a wide range of simulated metabolic conditions. Testing conditions consisted of incremental adjustments in calibrated gas infusion with a consistently set tidal volume and respiratory rate.RESULTS:
There was a strong, statistically significant correlation between the predicted and actual VO2 and VCO2 data (VO2, R (2) = 0.998; VCO2, R (2) = 0.997). In addition, we observed no significant difference between individuals performing these trials (VO2, P = 1.000, F = 0.021, df = 79; VCO2, P = 1.000, F = 0.030, df = 79).CONCLUSIONS:
This study is the first to report on such a wide spectrum of metabolic activity (50-2000 kcal REE) using a calibrated bench model and validates the accuracy, reproducibility, and use of the V(max) Encore metabolic cart.Palavras-chave
Texto completo:
1
Coleções:
01-internacional
Base de dados:
MEDLINE
Assunto principal:
Consumo de Oxigênio
/
Descanso
/
Metabolismo Basal
/
Calorimetria Indireta
Tipo de estudo:
Prognostic_studies
Limite:
Child
/
Humans
Idioma:
En
Revista:
JPEN J Parenter Enteral Nutr
Ano de publicação:
2015
Tipo de documento:
Article