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  • Title: Neuropsychological effects of third ventricle tumor surgery.
    Author: Friedman MA, Meyers CA, Sawaya R.
    Journal: Neurosurgery; 2008 Jun; 62(6 Suppl 3):1093-100. PubMed ID: 18695530.
    Abstract:
    OBJECTIVE: This study assessed the neuropsychological outcome of patients after surgical treatment for third ventricle brain tumors. Neuropsychological consequences of surgical intervention can have a major impact on patients' quality of life and therefore have important implications for treatment planning. METHODS: A retrospective analysis of 33 patients' neuropsychological data was performed. All patients received a comprehensive neuropsychological evaluation after treatment for a primary brain tumor in the third ventricular region. Twenty-six patients underwent surgery, 14 via the transcallosal approach and 12 via a subfrontal, left transcortical, right pterional, or infratentorial supracerebellar approach. Seven patients were not treated by surgical intervention. RESULTS: There was a significantly elevated frequency of cognitive impairment relative to normative values in memory, executive functioning, and fine manual speed and dexterity. There were no differences in mean neuropsychological scores between patients who underwent surgery and those who did not. There were no differences in mean performance on the basis of surgical approach, tumor infiltration, or history of cranial irradiation. Repeated measures data available for two patients revealed memory impairment before and after surgery, and one patient experienced major improvement after surgery on a measure of mental flexibility and problem solving. CONCLUSION: Patients with third ventricle tumors are at risk for developing impairments in memory, executive function, and fine manual speed and dexterity, which are domains associated with frontal subcortical functions. In the current study, different types of treatment were not associated with differential cognitive sequelae, and surgical intervention did not account for cognitive deficits.
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