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The course and outcome of cycloid psychosis

Published online by Cambridge University Press:  09 July 2009

I. F. Brockington ,
C. Perris ,
R. E. Kendell ,
V. E. Hillier  and
S. Wainwright
I. F. Brockington*
Affiliation:
Institute of Psychiatry, London
C. Perris
Affiliation:
Institute of Psychiatry, London
R. E. Kendell
Affiliation:
Institute of Psychiatry, London
V. E. Hillier
Affiliation:
Institute of Psychiatry, London
S. Wainwright
Affiliation:
Institute of Psychiatry, London
*
1Address for correspondence: Dr I. F. Brockington, Department of Psychiatry, University of South Manchester, West Didsbury, Manchester M20 8LR.
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Synopsis

Thirty patients with cycloid psychosis were found among 244 general psychotic and schizo-affective patients studied in London. The main clues to the diagnosis were the presence of ‘confusion’, a pleomorphic clinical picture or an acute onset. Most of the patients were classified as schizophrenic by British psychiatrists and the Catego system, and as schizo-affective or mood-incongruent affective psychotics by the American Research Diagnostic Criteria and DSM-III. There was little overlap between the cycloids and any Anglo-American category, and cycloid psychosis is not synonymous with schizo-affective psychosis. The outcome of the cycloids was better than that of psychotic patients as a whole, and much better than schizophrenia as defined by Catego, Schneider's, Langfeldt's or Carpenter's rules, or by the guidelines set by the International Classification of Diseases. Compared with manic-depressive patients (defined by the presence of mania at some stage), cycloids had more schizophrenic and fewer depressive and manic symptoms. There was a negligible concordance between the diagnosis of cycloid psychosis and the final diagnosis of manic-depressive disease. It is concluded that these patients should not be diagnosed as schizophrenic, but that the relation of cycloid psychosis to manic-depressive disease is not yet resolved.

Type
Research Article
Information
Psychological Medicine , Volume 12 , Issue 1 , February 1982 , pp. 97 - 105
Copyright
Copyright © Cambridge University Press 1982

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References

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