Two Task-Specific Dystonias in One Hand

Tremor and Other Hyperkinetic Movements

article

Manon Linssen¹  Cathérine Delnooz¹  Bart van de Warrenburg¹ 

[1] Department of Neurology, Radboud University Nijmegen Medical Centre, Donders Institute for Brain

关键词: Task-specificity;    writer’s cramp;    tremor;    dystonia;   

DOI  :  10.5334/tohm.149

学科分类：社会科学、人文和艺术（综合）

来源: Ubiquity Press

【 摘 要 】

Background: Dystonia is characterized by involuntary muscle contractions that lead to abnormal postures and/or repetitive movements. Task-specific dystonia only manifests during a specific activity. Case report: We report a case of a female with writer’s cramp who developed a second task-specific hand dystonia (tremor and abnormal posturing of the hand while using a computer mouse) many years after the initial onset. Discussion: This observation is in agreement with the concept that task-specific hand dystonia is induced by repetitive, skilled hand movements in those who have an intrinsic vulnerability towards developing ‘‘dystonic’’ motor programs.

【 授权许可】

CC BY