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  • Title: Cognitive deficits in multiple sclerosis patients with cerebellar symptoms.
    Author: Valentino P, Cerasa A, Chiriaco C, Nisticò R, Pirritano D, Gioia M, Lanza P, Canino M, Del Giudice F, Gallo O, Condino F, Torchia G, Quattrone A.
    Journal: Mult Scler; 2009 Jul; 15(7):854-9. PubMed ID: 19542264.
    Abstract:
    BACKGROUND: Cerebellar dysfunction is common in patients with multiple sclerosis (MS). However, neuropsychological studies of this clinical feature are lacking. OBJECTIVE: We investigate the neuropsychological features in relapsing-remitting MS (RR-MS) patients with and without cerebellar dysfunction. METHODS: Twenty-one RR-MS patients with cerebellar dysfunction (RR-MSc), characterized by prevalent ataxic gait and nystagmus, and 21 RR-MS patients without any cerebellar manifestation (RR-MSnc) pair-matched for demographical and clinical variables were studied. All patients from each group underwent an extensive battery of neuropsychological tests. Magnetic resonance imaging analysis included hyperintense fast fluid-attenuated inversion-recovery lesion load in the whole brain as well as in the four lobes separately. RESULTS: Any significant differences were detected in total and regional lesion load measurements between the two groups. RR-MSc group performed equally as well as the RR-MSnc group on many of the cognitive exploration measures. Nevertheless, the RR-MSc group performed more poorly than the RR-MSnc group on attention tests (Symbol Digit Modalities Test) and verbal fluency tests (Controlled Oral Word Association Test); neither of the test results proved to be affected by regional lesion loads. CONCLUSION: These results highlight the importance of considering cognitive deficits associated with the presence of cerebellar symptoms in RR-MS.
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