Acute Onset Dystonia after Infarction of Premotor and Supplementary Motor Cortex

作者：Dhakar Monica B^*; Watson Carla; Rajamani Kumar

来源：Journal of Stroke and Cerebrovascular Diseases, 2015, 24(12): 2880-2882.

DOI：10.1016/j.jstrokecerebrovasdis.2015.09.016

• Dystonia
• supplementary motor area
• poststroke
• premotor cortex

Objective: Poststroke dystonia is the second most common movement disorder after chorea and often has a delayed manifestation. Lesions of the contralateral lenticular nucleus, particularly the putamen, have been implicated in the pathogenesis of dystonia. We present an unusual case of rapid onset of focal dystonia of the left upper extremity, which developed after infarction of the right premotor cortex (PMC) and the supplementary motor area (SMA). Method: A retrospective chart review of the patient was performed. Results and Conclusion: We propose that disruption of the afferents from PMC and SMA in the setting of chronic striatal abnormality can result in acute dystonia due to disinhibition of the thalamocortical circuit.

• 出版日期2015-12