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Paraphrenia redefined.

A V Ravindran1, L N Yatham, A Munro

  • 1Royal Ottawa Hospital, Ontario.

Canadian Journal of Psychiatry. Revue Canadienne De Psychiatrie
|March 31, 1999
PubMed
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Paraphrenia, a distinct psychotic disorder, is identifiable and viable for diagnosis. Further research is recommended to benefit patients with paraphrenia and schizophrenia.

Area of Science:

  • Psychiatry
  • Psychology
  • Neurology

Background:

  • Paraphrenia is a distinct psychotic disorder, differing from paranoid schizophrenia with better affect and rapport.
  • It is infrequently diagnosed and not explicitly listed in DSM-IV or ICD-10, often mislabeled as atypical psychosis or delusional disorder.
  • Systematic research on paraphrenia has been minimal for the past 60 years.

Purpose of the Study:

  • To differentiate paraphrenia from late paraphrenia.
  • To provide a neo-Kraepelinian description of paraphrenia compatible with DSM-IV and ICD-10.
  • To survey and identify cases of paraphrenia in Canadian psychiatric centers.

Main Methods:

  • Distinguished paraphrenia from "late paraphrenia."
  • Developed a neo-Kraepelinian description for DSM-IV and ICD-10 compatibility.

Related Experiment Videos

  • Surveyed intake cases in Ottawa and Dartmouth using an adapted questionnaire, distinguishing paraphrenia from schizophrenia and delusional disorder.

    • Main Results:

    • Identified 33 cases fitting paraphrenia criteria over 18 months.
    • Enumerated outstanding features of identified paraphrenia cases.
    • Derived an outline description of paraphrenia based on the findings.

    Conclusions:

    • Paraphrenia is a definable and recognizable diagnostic entity.
    • Further research on paraphrenia and schizophrenia is warranted.
    • Study cases were coded for future follow-up investigations.