Raurich, Joan MariaLlompart-Pou, Juan AntonioFerreruela Serlavos, MireiaRiera Sagrera, MariaHomar-Ramirez, JavierMarse Milla, PedroColomar Ferra, Maria AsuncionNicolau, Joana2024-07-042024-07-042015-09Raurich Puigdevall JM, Llompart Pou JA, Ferreruela Serlavos M, Riera Sagrera M, Homar J, Marse P, et al. A simplified equation for total energy expenditure in mechanically ventilated critically ill patients. Nutr Hosp. 2015 Sep;32(3):1273-80.0212-1611http://hdl.handle.net/20.500.13003/17465http://hdl.handle.net/20.500.12105/20175Introduction: tight calorie control concept arose to avoid over- and under-feeding of patients. Objective: to describe and validate a simplified predictive equation of total energy expenditure (TEE) in mechanically ventilated critically ill patients. Methods: this was a secondary analysis of measurements of TEE by indirect calorimetry in critically ill patients. Patients were allocated in a 2:1 form by a computer package to develop the new predictive equation TEE (prediction cohort) and the validation cohort. Indirect calorimetry was performed with three different calorimeters: the Douglas-bag, a metabolic computer and the Calorimet. We developed a new TEE predictive equation using measured TEE (in kcal/kg/d) as dependent variable and as independent variables different factors known to influence energy expenditure: age, gender, body mass index (BMI) and type of injury. Results: prediction cohort: 179 patients. Validation cohort: 91 patients. The equation was: TEEPE (kcal/Kg/d) =33 - (3 x A) - (3 x BMI) - (1 x G). Where: A (age in years): <= 50 = 0; > 50 = 1. BMI (Kg/m(2)): 18.5 - 24.9 = 0; 25 - 29.9 = 1; 30 - 34.9 = 2; 35 - 39.9 = 3. G (gender): male = 0; female = 1. The bias (95% CI) was -0.1 (-1.0 - 0.7) kcal/kg/d and the limits of agreement (+/- 2SD) were -8.0 to 7.8 kcal/kg/d. Predicted TEE was accurate (within 85% to 115%) in 73.6% of patients. Conclusion: the new predictive equation was acceptable to predict TEE in clinical practice for most mechanically ventilated critically ill patients.enghttp://creativecommons.org/licenses/by-nc-sa/4.0/Total energy expenditureResting energy expenditureCritically ill patientsMechanical ventilationAgedEnergy IntakeEnergy MetabolismAdultHumansAlgorithmsCalorimetry, IndirectMiddle AgedMaleSoftware DesignCritical IllnessFemaleBody Mass IndexModels, StatisticalRespiration, ArtificialReproducibility of ResultsRetrospective Studiesresearch articleAttribution-NonCommercial-ShareAlike 4.0 International263198503231273-128010.3305/nh.2015.32.3.93591699-5198Nutricion Hospitalariaopen accessÍndice de Masa CorporalModelos EstadísticosReproducibilidad de los ResultadosEnfermedad CríticaDiseño de SoftwareFemeninoMasculinoCalorimetría IndirectaMetabolismo EnergéticoHumanosPersona de Mediana EdadAlgoritmosIngestión de EnergíaAncianoEstudios RetrospectivosAdultoRespiración Artificial2-s2.0-84940509477362925300043L614913797