Background: Cycloid psychoses represent a nosological entity not adequately recognised by contemporary psychiatry. They show full recovery after each episode and thus have a favourable prognosis.
Methods: Course, psychiatric status, social function, and quality of life (QoL) of 33 patients with cycloid psychosis and 44 schizophrenics were compared (CGI, PANSS, GAF, Strauss-Carpenter,WHOQOL-BREF).Also, 48 controls were asked to rate their QoL.
Results: The schizophrenics developed symptoms earlier in life (P=0.009) and were hospitalized longer (P=0.001) and more frequently(P=0.01) than patients with cycloid psychosis. The latter showed better scores in the applied scales (P<0.0001). In QoL measures, cycloid psychotic patients were more satisfied than schizophrenic patients in three of four domains(P<0.01). Only in one domain did they differ from controls (P<0.01).
Conclusion: Cycloid psychoses display better course, outcome, and QoL than schizophrenia.Thus, they appear to present a useful concept deserving more clinical and scientific attention.
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