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Cycloid psychoses: clinical symptomatology, prognosis, and heredity1
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Orientador(es)
Resumo(s)
The development of the concept of cycloid
psychoses goes back to the problem of “atypical psychoses” which arose from Kraepelin’s dichotomy of endogenous psychoses1. It concerned those forms of psychoses which could be assigned neither to dementia praecox nor to manic-depressive illness. One strategy for a
solution of this problem was the broadening of the concept of schizophrenia as inaugurated by Bleuler (1911)2. Schizophrenia was then thought to include lots of clinical conditions with entirely
different cross-sectional
symptomatology, long-term
course and outcome, thus
considerably reducing the
heuristic value of the diagnosis.
Furthermore, reliable prognoses became impossible according to Bleuler’s
concepts (table 1).
Inevitably, the idea was generated that there
might be a nosologically independent group
of endogenous psychoses in addition to
schizophrenias and manic-depressive illness.
Based upon the previous work of Wernicke and
Kleist3, Leonhard (1999)4 further established
the concept of cycloid psychoses. Rejecting
nosological hybridisation, the independency of these psychoses was emphasized. Representing one of the three main groups in his subdivision of psychoses with “schizophreniform”
symptomatology, Leonhard meticulously elaborated on precise clinical diagnostic criteria for cycloid psychoses.
In the current diagnostic manuals, those psychoses spread over various diagnostic entities like bipolar affective disorder, schizoaffective disorder, acute polymorphic psychotic disorder (ICD), brief psychotic disorder (DSM), or even schizophrenia, if 1st-rank symptoms are
observed for more than one month.
Descrição
Palavras-chave
Psychotic disorders Cycloid psychoses
Contexto Educativo
Citação
Psilogos.2007; 4(1): 10-16
Editora
Serviço de Psiquiatria do Hospital Prof. Dr. Fernando Fonseca, E.P.E.