A new study in the Frontiers in Nutrition Journal provides evidence on the assessment of the time to reach steady state (SS) during indirect calorimetry in young, healthy adults. The aims of this prospective study are to determine an approximate time to reach SS using open-circuit IC and establish the appropriate duration of SS needed to estimate…

A new study in the Journal of Intensive care Medicine analyses the accuracy of predictive equations versus indirect calorimetry in surgical ICU (SICU) patients. The objective of this study was to compare the REE measured by indirect calorimetry with REE calculated using specific calorie goals or predictive equations for nutritional support in ven…

A new study investigates the applicability of predictive equations for resting energy expenditure (REE) in obese individuals with obstructive sleep apnea (OSA) and the effects of OSA severity on REE. The aim of the present study was to compare the REE measured by indirect calorimetry with prediction equations in obese OSA patients and, as a secon…

A new study on the Nutrition Journal analyzes the accuracy of predictive equations to estimate energy expenditure in postpartum women. The study aimed to evaluate the resting energy expenditure (REE) of postpartum women by indirect calorimetry (IC) and provide the most appropriate predictive equations to estimate it. REE of 79 women in a maternit…

This study, published in the Clinical Nutrition Journal, tries to show how abnormal basal energy metabolism can be associated with higher risk in anticancer treatments (like chemotherapy). Alterations of nutritional and performance status (PS) are associated with higher risk of chemotherapy toxicity. Increased resting energy expenditure (REE) is…

A new study on the American Journal of Critical Care demonstrates the limited reliability of the Harris Benedict Equation as a substitute to indirect calorimetry in critically ill patients undergoing mechanical ventilation. This observational transversal study (sample comprised 205 patients) compared REEIC (measured with indirect calorimetry) wit…

A new study on the Journal of Parenteral and Enteral Nutrition has been published showing the importance of indirect calorimetry measurements to accurately indicate the true caloric requirements of patients suffering from severe brain damage and requiring mechanical ventilation. The purpose of this present study was to determine the true caloric…

A new study on the Journal of Clinical Biochemistry and Nutrition examines the importance of monitoring energy metabolism in lung cancer patients. This study aimed to investigate the energy metabolism of patients with lung cancer and the relationship between energy metabolism and proinflammatory cytokines. The resting energy expenditure and resp…

The European Journal of Clinical Nutrition hosts a new study, which summarizes recent research on the importance of indirect calorimetry in predicting weight gain and obesity. The study reviewed data from indirect calorimetry key metabolic predictors (resting metabolic rate, spontaneous physical activity and respiratory quotient) to gain insights…

A new prospective cohort study published on ESPEN's Clinical Nutrition Journal evaluated the role and the feasibility of indirect calorimetry (IC) among patients admitted in intensive care units with diagnosis of acute kidney injury (AKI). A key issue on these patients is that general recommendations suggest to not perform IC during dialysis, but…

The reliability of predictive equations versus indirect calorimetry in kidney injury patients has been assessed in this paper published in Annals of Nutrition and Metabolism Journal. There are multiple equations for predicting resting energy expenditure (REE), whose accuracy in severe acute kidney injury (AKI) patients has been examined in this s…

A new paper tested how acceptable can be among spinal cord injury patients to undertake an indirect calorimetry test with canopy hood. In the absence of reliable predictive equations, indirect calorimetry (IC) remains the gold standard for assessing energy requirements after spinal cord injury (SCI), but it is typically confined to a research set…

A new cross-sectional secondary analysis was published in the Journal of Parenteral and Enteral Nutrition (JPEN) focusing on issue related to the indirect calorimetry test in hemodialysis patients. Indirect calorimetry requires a steady state (SS) protocol to determine measured resting energy expenditure (mREE). Achieving stringent criteria for a…

A new study on the Nutrition Clinical Practice Journal demonstrates that the assessment of energy expenditure in cystic fibrosis patients requires indirect calorimetry and cannot be predicted by equations. Resting energy expenditure (REE) is increased in patients with cystic fibrosis (CF) with end-stage lung disease due to chronic inflammation an…

The limited accuracy of currently in use predictive equations for Resting Metabolic rate (RMR) was assessed in a new study on the FASEB Journal. The objective of the present study was to test the validity of established (Harris-Benedict, WHO, Mifflin-St. Jeor) and contemporary (3 meta equations of Sabounchi and colleagues, 1 equation of Nelson an…

A study published in the Proceedings of the Nutrition Society investigates the current findings on the management of neonatal nutrition in the preterm infant. The present paper provides a review of the current literature on the nutritional management and assessment of growth in preterm infants. It also explores several elements that may be essent…

A new study confirms the importance of measuring resting energy expenditure in a clinical setting rather than using predictive equations. The study has been published on the Journal of Pediatric Gastroenterology and Nutrition. The study performed a cross-sectional study of 236 infants, children and adolescents consecutively admitted to the Interm…

A new study published in the Critical Care Journal introduced a new protocol “RISEN"–Recovery from ICU via Surveillance, Exercise, and Nutrition" for post-ICU survivors. The RISEN procotol represents a combination of modern performance-enhancing nutrition, anticatabolic/anabolic interventions, and muscle/exercise testing in order to begin to crea…

The usefulness of predictive equations of REE in healthy obese subjects has been analysed in this literature review published in the Journal of Human Nutrition and Dietetics from the British Dietetic Association. Estimates of energy requirements are needed in weight management and are usually determined using prediction equations. The objective o…

The Nutrition in Clinical Practice Journal published an interesting article on the optimum abbreviated period for measurement of indirect calorimetry. This study aimed to determine the acclimation time required to achieve the REE steady state during a 30-minute IC measurement and to define the optimum abbreviated measurement period in the steady…