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Childhood-onset schizophrenia. Progressive ventricular change during adolescence.

BACKGROUND: There is controversy about progression in brain abnormalities in later-onset schizophrenia. This study looked for more striking progression in brain abnormalities during adolescence in a chronically ill, treatment-refractory sample of patients with childhood-onset schizophrenia who had had more prepsychotic developmental disturbance, but clinical and neurobiological characteristics similar to those of patients with treatment-refractory adult-onset schizophrenia who have poor outcome. METHODS: Anatomic brain magnetic resonance images were obtained for 16 children and adolescents with onset of schizophrenia by 12 years of age and 24 temporally yoked, age- and sex-matched healthy controls. Subjects were scanned on initial admission and rescanned after 2 years with the identical equipment and measurement methods. RESULTS: Childhood schizophrenics showed a significantly greater increase in ventricular volume than did controls, for whom ventricles did not increase significantly (analysis of variance, diagnosis x time, F = 16.1, P < .001). A significant decrease in midsagittal thalamic area was also seen for the schizophrenics (P = .03), which was unchanged at rescan for controls. These differential brain changes correlated significantly with each other and tended to be predicted by both prepsychotic developmental abnormality (Premorbid Assessment Scale, P = .06) and Brief Psychiatric Rating Scale at follow-up (P = .07). CONCLUSIONS: More consistent progressive ventricular enlargement was seen during adolescence for this childhood-onset sample than has been reported for adult-onset populations. The brain imaging results support other clinical data showing both early and late deviations in brain development for at least this rare subgroup of treatment-refractory, very-early-onset schizophrenic patients.

Pubmed ID: 9337768


  • Rapoport JL
  • Giedd J
  • Kumra S
  • Jacobsen L
  • Smith A
  • Lee P
  • Nelson J
  • Hamburger S


Archives of general psychiatry

Publication Data

October 4, 1997

Associated Grants


Mesh Terms

  • Adolescent
  • Adult
  • Age Factors
  • Age of Onset
  • Basal Ganglia
  • Brain
  • Cerebral Ventricles
  • Child
  • Chronic Disease
  • Disease Progression
  • Female
  • Follow-Up Studies
  • Humans
  • Magnetic Resonance Imaging
  • Male
  • Psychiatric Status Rating Scales
  • Schizophrenia, Childhood
  • Severity of Illness Index
  • Thalamus