title: [Rheumatic cardiopathy in children younger than 6 years of age].
abstract: Most of the published papers on Rheumatic Fever (RF) have not included the younger population. We selected 211 cases of children with RF younger than 6 years of age from 9,471 clinical files from 1944 to 1982. These were followed retrospectively to identify the presence of rheumatic activity, subsequent attacks and penicillin profilaxis. From de 211 cases, 209 had carditis; 57% of them were girls and 43% boys. There were no previous infections of the upper respiratory tract in 36% of the patients. The number of cases with RF increased abruptly after 3 years of age and continued increasing until 5 years of age when 70.5% of the population had there first clinically recognized attack. Lesions were present in the mitral valve in 80% of the cases, in the aortic valve in 12%, in the tricuspid in 5% and in the pulmonary valve in 3%. The death rate during the first attack was 20% being refractory heart failure the main cause of death. Thirteen cases suffered rheumatic pneumonia, 9 of whom died (69.2%).
  
  
  CONCLUSIONS
  1) The incidence of acute rheumatic fever in children under 6 years of age has decreased with time. 2) The death rate as well as the valvular damage decreased with the parents cooperation with the treatment. 3) The changes in the clinical picture and the severity of valve sequelea may be due to penicillin profilaxis and the better understanding of the disease.
authors.affiliation: Instituto Nacional de Cardiología Ignacio Chávez, México, D.F.
authors.forename: C
authors.initials: C
authors.lastname: Vázquez-Antona
authors.forename: J
authors.initials: J
authors.lastname: Calderón-Colmenero
authors.forename: F
authors.initials: F
authors.lastname: Attié
authors.forename: C
authors.initials: C
authors.lastname: Zabal
authors.forename: A
authors.initials: A
authors.lastname: Buendía-Hernández
authors.forename: L H
authors.initials: LH
authors.lastname: Díaz-Medina
authors.forename: J
authors.initials: J
authors.lastname: Bialkowski
authors.forename: F
authors.initials: F
authors.lastname: García Arenal
mesh_terms: D002675:Child, Preschool; D005260:Female; D006349:Heart Valve Diseases / Q000453:epidemiology / Q000209:etiology; D006801:Humans; D008297:Male; D012189:Retrospective Studies; D012214:Rheumatic Heart Disease / Q000150:complications / Q000453:epidemiology* / Q000401:mortality
vernacular_title: Cardiopatía reumática en niños menores de 6 años.