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  • Title: Neuropsychological outcome following unilateral stereotactic pallidotomy in intractable Parkinson's disease.
    Author: Lacritz LH, Cullum CM, Frol AB, Dewey RB, Giller CA.
    Journal: Brain Cogn; 2000 Apr; 42(3):364-78. PubMed ID: 10753485.
    Abstract:
    Neuropsychological functioning was examined at baseline and 2- to 3-month follow-up in 40 subjects with advanced Parkinson's disease (PD) who underwent unilateral posteroventral pallidotomy. Most subjects demonstrated improved verbal learning, visual memory, confrontation naming, and figural fluency at follow-up. Right pallidotomy was associated with decreased cognitive flexibility and increased verbal fluency, whereas Left pallidotomy uniquely resulted in a decline in verbal fluency. Significant motor improvement was demonstrated in both groups. Pallidotomy appears to be an effective treatment for advanced PD, providing a significant improvement in motor functioning, while resulting in few deleterious neurocognitive changes in most cases.
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