The ventricular system in chronic schizophrenic patients. A controlled computed tomography study.

Area of Science:

• Neuroimaging
• Psychiatry
• Neurology

Background:

• Schizophrenia is associated with brain structural abnormalities.
• Previous studies reported ventriculomegaly (enlarged ventricles) in schizophrenia patients.
• The causes of ventriculomegaly, such as cerebrospinal fluid (CSF) flow disturbance or atrophy, remain unclear.

Purpose of the Study:

• To investigate the specific patterns of ventricular and sulcal enlargement in chronic schizophrenia.
• To differentiate between CSF flow disturbance and cerebral atrophy as potential causes of observed ventricular changes.

Main Methods:

• Computed tomography (CT) scans were performed on 23 male chronic schizophrenia patients and 23 age-matched male controls (20-40 years).
• Measurements included lateral, third, and fourth ventricles, Sylvian fissures, and sulci in frontal, parietal, and occipital lobes.
• Statistical analysis was used to compare measurements between schizophrenic patients and controls.

Main Results:

• Schizophrenic patients exhibited significantly enlarged third and fourth ventricles compared to controls.
• Both Sylvian fissures were also significantly enlarged in the schizophrenia group.
• No significant enlargement was found in the lateral ventricles or cerebral sulci of schizophrenic patients.

Conclusions:

• The observed ventricular enlargement in schizophrenia is specific to the third and fourth ventricles and Sylvian fissures.
• The findings suggest that cerebrospinal fluid flow disturbance or cerebral atrophy are unlikely explanations for these specific ventricular changes.
• Further research is needed to explore alternative etiological factors contributing to these structural brain abnormalities in schizophrenia.