کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
6278128 | 1295793 | 2009 | 10 صفحه PDF | دانلود رایگان |
عنوان انگلیسی مقاله ISI
Cerebellar stroke without motor deficit: clinical evidence for motor and non-motor domains within the human cerebellum
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کلمات کلیدی
Cerebellar cognitive affective syndromeAICASCAfcMRIInternational Cooperative Ataxia Rating ScaleCCAsPICAAtaxia - آتاکسی analysis of variance - تحلیل واریانسANOVA - تحلیل واریانس Analysis of varianceFunctional connectivity magnetic resonance imaging - تصویربرداری رزونانس مغناطیسی اتصال به عملکردfunctional magnetic resonance imaging - تصویرسازی تشدید مغناطیسی کارکردیfMRI - تصویرسازی تشدید مغناطیسی کارکردیSuperior cerebellar artery - شریان فوقانی مغز استخوانPosterior inferior cerebellar artery - شریان مخچه پایین ترAnterior inferior cerebellar artery - شریان مغزی قدامی قدامیCerebellum - مخچهMotor control - کنترل حرکتی
موضوعات مرتبط
علوم زیستی و بیوفناوری
علم عصب شناسی
علوم اعصاب (عمومی)
پیش نمایش صفحه اول مقاله
چکیده انگلیسی
Objective. To determine whether there are non-motor regions of cerebellum in which sizeable infarcts have little or no impact on motor control. Experimental procedures. We evaluated motor deficits in patients following cerebellar stroke using a modified version of the International Cooperative Ataxia Rating Scale (MICARS). Lesion location was determined using magnetic resonance imaging (MRI) and computerized axial tomography (CT). Patients were grouped by stroke location-Group I, stroke within the anterior lobe (lobules I-V); Group 2, anterior lobe and lobule VI; Group 3, posterior lobe (lobules VI-IX; including flocculonodular lobe, lobule X); Group 4, posterior lobe but excluding lobule VI (i.e. lobules VII-X); Group 5, stroke within anterior lobe plus posterior lobe. Results. Thirty-nine patients were examined 8.0±6.0 days following stroke. There were no Group 1 patients. As mean MICARS scores for Groups 2 through 5 differed significantly (one-way analysis of variance, F(3,35)=10.9, P=0.000 03), post hoc Tukey's least significant difference tests were used to compare individual groups. Group 2 MICARS scores (n=6; mean±SD, 20.2±6.9) differed from Group 3 (n=6; 7.2±3.8; P=0.01) and Group 4 (n=13; 2.5±2.0; P=0.000 02); Group 5 (n=14; 18.6±12.8) also differed from Group 3 (P=0.009) and Group 4 (P=0.000 02). There were no differences between Groups 2 and 5 (P=0.71), or between Group 3 and Group 4 (P=0.273). However, Group 3 differed from Group 4 when analyzed with a two-sample t-test unadjusted for multiple comparisons (P=0.03). Thus, the cerebellar motor syndrome resulted from stroke in the anterior lobe, but not from stroke in lobules VIIâX (Groups 2 plus 5, n=20, MICARS 19.1±11.2, vs. Group 4; P=0.000 002). Strokes involving lobule VI produced minimal motor impairment. Conclusion. These findings demonstrate that cerebellar stroke does not always result in motor impairment, and they provide clinical evidence for topographic organization of motor versus nonmotor functions in the human cerebellum.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Neuroscience - Volume 162, Issue 3, 1 September 2009, Pages 852-861
Journal: Neuroscience - Volume 162, Issue 3, 1 September 2009, Pages 852-861
نویسندگان
J.D. Schmahmann, J. MacMore, M. Vangel,