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Effects of repetitive transcranial magnetic stimulation on auditory hallucinations refractory to clozapine.
Rosa, Marina O; Gattaz, Wagner F; Rosa, Moacyr A; Rumi, Demetrio O; Tavares, Hildeberto; Myczkowski, Martin; Sartorelli, Maria C; Rigonatti, Sergio P; Elkis, Helio; Cabral, Sergio B; Teixeira, Manoel J; Marcolin, Marco A.
Afiliación
  • Rosa MO; Institute of Psychiatry, University of Sao Paulo, Faculty of Medicine, Sao Paulo-SP, Brazil. marinarosa@usp.br
J Clin Psychiatry ; 68(10): 1528-32, 2007 Oct.
Article en En | MEDLINE | ID: mdl-17960967
OBJECTIVE: To study the therapeutic effects on auditory hallucinations refractory to clozapine with 1-Hz repetitive transcranial magnetic stimulation (rTMS) applied on the left temporoparietal cortex. METHOD: Eleven patients with schizophrenia (DSM-IV) experiencing auditory hallucinations (unresponsive to clozapine) were randomly assigned to receive either active of rTMS (N = 6) or sham stimulation (N = 5) (with concomitant use of clozapine) using a double-masked, sham-controlled, parallel design. A total of 160 minutes of rTMS (9600 pulses) was administered over 10 days at 90% motor threshold. The study was conducted from January 2003 to December 2005. RESULTS: There was a reduction in hallucination scores in both groups, which persisted during follow-up in the active group for the items reality (p = .0493) and attentional salience (p = .0360). Both groups showed similar patterns of symptomatic changes on subscales (negative symptoms, general psychopathology) and total scores of the Positive and Negative Syndrome Scale, Clinical Global Impressions scale, and Visual Analog Scale. CONCLUSION: Active rTMS in association with clozapine can be administered safely to treat auditory hallucinations, although its clinical utility is still questionable. No significant clinical effects were observed in the sample studied, possibly because it was too small and/or due to its high refractoriness.
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Colección: 01-internacional Base de datos: MEDLINE Asunto principal: Esquizofrenia / Psicología del Esquizofrénico / Resistencia a Medicamentos / Clozapina / Estimulación Magnética Transcraneal / Alucinaciones Tipo de estudio: Clinical_trials / Risk_factors_studies Límite: Adult / Female / Humans / Male Idioma: En Revista: J Clin Psychiatry Año: 2007 Tipo del documento: Article País de afiliación: Brasil Pais de publicación: Estados Unidos
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Colección: 01-internacional Base de datos: MEDLINE Asunto principal: Esquizofrenia / Psicología del Esquizofrénico / Resistencia a Medicamentos / Clozapina / Estimulación Magnética Transcraneal / Alucinaciones Tipo de estudio: Clinical_trials / Risk_factors_studies Límite: Adult / Female / Humans / Male Idioma: En Revista: J Clin Psychiatry Año: 2007 Tipo del documento: Article País de afiliación: Brasil Pais de publicación: Estados Unidos