title: Energy Expenditure in Chilean Children with Maple Syrup Urine Disease (MSUD).
abstract: BACKGROUND
  Maple syrup urine disease (MSUD) is an autosomal recessive disorder caused by a blockage of branched-chain keto acid of BCAA (branched-chain keto acid dehydrogenase, BCKDH) leading to neurological damage induced by accumulation of leucine and metabolites. MSUD expenditure and energy requirement information is limited.
  
  
  OBJECTIVE
  To determine if basal/total energy expenditure (BEE/TEE) is comparable between different determination methods and if values agree with recommendations of energy in MSUD children, and whether they relate to nutritional status.
  
  
  METHODS
  Case-control study between MSUD (n = 16) and healthy children (n = 11) aged 6-18 years. Current nutritional status, physical activity level, body composition by DEXA and BEE/TEE by indirect calorimetry (BEEr) and predictive equations (FAO/WHO/ONU - WHO - and Schofield) were assessed; STATA 2013 (p < 0.05).
  
  
  RESULTS
  When comparing the energy expenditure variables, there was no significant difference between groups. Moreover, compared to BEEr, equations underestimate according to BEE WHO and Schofield, respectively (P = 0.00; 0.02). The WHO equation had lower average calorie difference, greater concordance correlation and association with indirect calorimetry compared to the Schofield equation for both groups, being the best predictor of the BEE for MSUD group.
  
  
  CONCLUSIONS
  Energy recommendations for MSUD children are according to energy expenditure; thus the use of WHO equation is a clinically and statistically feasible tool for its determination.
authors.affiliation: INTA - Instituto de Nutrición y TecnologÚa de Alimentos Doctor Fernando Monckeberg Barro, University of Chile, Av. El Líbano 5524, Macul, Macul, Santiago, Chile. karen.campo@inta.uchile.cl.
authors.forename: Karen
authors.initials: K
authors.lastname: Campo
authors.affiliation: INTA - Instituto de Nutrición y TecnologÚa de Alimentos Doctor Fernando Monckeberg Barro, University of Chile, Av. El Líbano 5524, Macul, Macul, Santiago, Chile.
authors.forename: Gabriela
authors.initials: G
authors.lastname: Castro
authors.affiliation: INTA - Instituto de Nutrición y TecnologÚa de Alimentos Doctor Fernando Monckeberg Barro, University of Chile, Av. El Líbano 5524, Macul, Macul, Santiago, Chile.
authors.forename: Valerie
authors.initials: V
authors.lastname: Hamilton
authors.affiliation: INTA - Instituto de Nutrición y TecnologÚa de Alimentos Doctor Fernando Monckeberg Barro, University of Chile, Av. El Líbano 5524, Macul, Macul, Santiago, Chile.
authors.forename: Juan Francisco
authors.initials: JF
authors.lastname: Cabello
authors.affiliation: INTA - Instituto de Nutrición y TecnologÚa de Alimentos Doctor Fernando Monckeberg Barro, University of Chile, Av. El Líbano 5524, Macul, Macul, Santiago, Chile.
authors.forename: Erna
authors.initials: E
authors.lastname: Raimann
authors.affiliation: INTA - Instituto de Nutrición y TecnologÚa de Alimentos Doctor Fernando Monckeberg Barro, University of Chile, Av. El Líbano 5524, Macul, Macul, Santiago, Chile.
authors.forename: Carolina
authors.initials: C
authors.lastname: Arias
authors.affiliation: INTA - Instituto de Nutrición y TecnologÚa de Alimentos Doctor Fernando Monckeberg Barro, University of Chile, Av. El Líbano 5524, Macul, Macul, Santiago, Chile.
authors.forename: Verónica
authors.initials: V
authors.lastname: Cornejo