Obesity is increasing in the US adolescent population. As the number of obese adolescents increases, obesity is becoming a more frequent problem in the hospital setting, sometimes causing patients to have complicated and prolonged hospital stays. Calculation of the energy requirements of obese adolescent patients with chronic diseases such as cancer is complicated by increased energy requirements as a result of disease state and growth. This study examined the accuracy of the commonly used equations for calculating energy requirements. Estimated energy expenditure was compared with measured energy expenditure determined by indirect calorimetry. All energy estimation equations were inaccurate, which indicates the need for a specific equation for determination of energy needs in this special patient population. Until further research is done, indirect calorimetry is recommended for all obese adolescent patients with cancer who require nutrition support.
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