Moro Adriana, Munhoz Renato P, Moscovich Mariana, Arruda Walter O, Raskin Salmo, Teive Hélio A G
Movement Disorders Unit, Neurology Service, Internal Medicine Department, Hospital de Clínicas, Federal University of Paraná, Curitiba PR, Brazil.
Eur Neurol. 2014;72(5-6):360-2. doi: 10.1159/000365285. Epub 2014 Oct 14.
Movement disorders (MDs) are well recognized in all subtypes of spinocerebellar ataxias (SCA), but phenomenology and frequency vary widely.
Three hundred seventy-eight patients, from 169 Brazilian families, with SCAs were assessed with neurological examination and molecular genetic testing.
Dystonia was the most common movement disorder, found in 5.5% of all patients, particularly in SCA3. We observed Parkinsonian features in 6.6% of SCA3 patients, and myoclonus in two patients of our cohort.
Our study demonstrated that MDs are major extracerebellar manifestations of SCA. The observed phenotypes in addition to ataxia may provide significant clues for a particular SCA genotype.
运动障碍（MDs）在所有脊髓小脑共济失调（SCA）亚型中均得到充分认识，但现象学和频率差异很大。
对来自169个巴西家庭的378例SCA患者进行了神经学检查和分子遗传学检测。
肌张力障碍是最常见的运动障碍，在所有患者中占5.5%，尤其在SCA3中。我们在6.6%的SCA3患者中观察到帕金森样特征，在我们队列中的两名患者中观察到肌阵挛。
我们的研究表明，MDs是SCA主要的小脑外表现。除共济失调外观察到的表型可能为特定的SCA基因型提供重要线索。
