title: Functional Class in Children with Idiopathic Dilated Cardiomyopathy. A pilot Study.
abstract: BACKGROUND
  Idiopathic dilated cardiomyopathy (IDCM), most common cardiac cause of pediatric deaths, mortality descriptor: a low left ventricular ejection fraction (LVEF) and low functional capacity (FC). FC is never self reported by children.
  
  
  OBJECTIVE
  The aims of this study were (i) To evaluate whether functional classifications according to the children, parents and medical staff were associated. (iv) To evaluate whether there was correlation between VO2 max and Weber's classification.
  
  
  METHODS
  Prepubertal children with IDCM and HF (by previous IDCM and preserved LVEF) were selected, evaluated and compared. All children were assessed by testing, CPET and functional class classification.
  
  
  RESULTS
  Chi-square test showed association between a CFm and CFp (1, n = 31) = 20.6; p = 0.002. There was no significant association between CFp and CFc (1, n = 31) = 6.7; p = 0.4. CFm and CFc were not associated as well (1, n = 31) = 1.7; p = 0.8. Weber's classification was associated to CFm (1, n = 19) = 11.8; p = 0.003, to CFp (1, n = 19) = 20.4; p = 0.0001and CFc (1, n = 19) = 6.4; p = 0.04).
  
  
  CONCLUSIONS
  Drawing were helpful for children's self NYHA classification, which were associated to Weber's stratification.
authors.affiliation: Instituto do Coração, Hospital Sírio-libanês, São Paulo, SP, Brazil.
authors.forename: Aline Cristina
authors.initials: AC
authors.lastname: Tavares
authors.affiliation: Instituto do Coração, Hospital Sírio-libanês, São Paulo, SP, Brazil.
authors.forename: Edimar Alcides
authors.initials: EA
authors.lastname: Bocchi
authors.affiliation: Instituto do Coração, Hospital Sírio-libanês, São Paulo, SP, Brazil.
authors.forename: Guilherme Veiga
authors.initials: GV
authors.lastname: Guimarães
mesh_terms: D002311:Cardiomyopathy, Dilated / Q000145:classification / Q000503:physiopathology*; D002648:Child; D002675:Child, Preschool; D003430:Cross-Sectional Studies; D005080:Exercise Test; D005260:Female; D006801:Humans; D008297:Male; D008451:Maximal Voluntary Ventilation / Q000502:physiology; D010101:Oxygen Consumption / Q000502:physiology*; D005082:Physical Exertion / Q000502:physiology; D010865:Pilot Projects; D011446:Prospective Studies; D011897:Random Allocation; D013318:Stroke Volume / Q000502:physiology*; D016277:Ventricular Function, Left / Q000502:physiology*