title: [Nitrogen balance in adolescent patients with chronic renal insufficiency].
abstract: Protein restriction in patients with chronic renal failure may be potentially beneficial, however the dangers in growing children of such restrictions must be considered. We analyzed the nitrogen balance in 60 chronic renal failure children (47 male y 13 female) Group A: 36 preadolescents. GFR was 54.5 +/- 25.6 ml/min/1.73 m2. Group B: 24 adolescents. GFR 52.7 +/- 25.4 ml/min/1.73 m2.
  
  
  RESULTS
  55% of patients had a negative balance. 72% preadolescents and 17% of adolescents had positive nitrogen balance A good correlation was found between the range of energy and protein intake and nitrogen balance.
  
  
  CONCLUSIONS
  1. A good correlation was found between nitrogen balance and the range of energy and protein intake but no correlation with the renal function degree. 2. Adolescents had nitrogen balance negative. 3. It is necessary turn-over protein studies in this patients to know the requirements in children with chronic renal failure.
authors.affiliation: Servicio de Nefrología Pediátrica, Hospital Universitario Materno Infantil La Paz, Universidad Autónoma de Madrid, España.
authors.forename: R A
authors.initials: RA
authors.lastname: Lama More
authors.forename: A
authors.initials: A
authors.lastname: Alonso Melgar
authors.forename: M
authors.initials: M
authors.lastname: Navarro Torres
mesh_terms: D000293:Adolescent; D002648:Child; D004044:Dietary Proteins / Q000008:administration & dosage; D004734:Energy Metabolism; D005260:Female; D005521:Food Service, Hospital; D006760:Hospitalization; D006801:Humans; D007676:Kidney Failure, Chronic / Q000378:metabolism*; D008297:Male; D009584:Nitrogen / Q000378:metabolism*
chemical_list: D004044:Dietary Proteins; D009584:Nitrogen
vernacular_title: Estudio de balance nitrogenado y estadio puberal en pacientes con insuficiencia renal crónica.