Lack of progression of brain abnormalities in first-episode psychosis: a longitudinal magnetic resonance imaging study.
Psychol Med
; 41(8): 1677-89, 2011 Aug.
Article
en En
| MEDLINE
| ID: mdl-21144111
ABSTRACT
BACKGROUND:
Some neuroimaging studies have supported the hypothesis of progressive brain changes after a first episode of psychosis. We aimed to determine whether (i) first-episode psychosis patients would exhibit more pronounced brain volumetric changes than controls over time and (ii) illness course/treatment would relate to those changes.METHOD:
Longitudinal regional grey matter volume and ventriclebrain ratio differences between 39 patients with first-episode psychosis (including schizophrenia and schizophreniform disorder) and 52 non-psychotic controls enrolled in a population-based case-control study.RESULTS:
While there was no longitudinal difference in ventriclebrain ratios between first-episode psychosis subjects and controls, patients exhibited grey matter volume changes, indicating a reversible course in the superior temporal cortex and hippocampus compared with controls. A remitting course was related to reversal of baseline temporal grey matter deficits.CONCLUSIONS:
Our findings do not support the hypothesis of brain changes indicating a progressive course in the initial phase of psychosis. Rather, some brain volume abnormalities may be reversible, possibly associated with a better illness course.
Texto completo:
1
Bases de datos:
MEDLINE
Asunto principal:
Trastornos Psicóticos
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Encéfalo
Tipo de estudio:
Observational_studies
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Prognostic_studies
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Risk_factors_studies
Límite:
Adult
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Female
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Humans
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Male
Idioma:
En
Revista:
Psychol Med
Año:
2011
Tipo del documento:
Article
País de afiliación:
Brasil