期刊
JOURNAL OF THE NEUROLOGICAL SCIENCES
卷 266, 期 1-2, 页码 31-33出版社
ELSEVIER SCIENCE BV
DOI: 10.1016/j.jns.2007.08.024
关键词
dystonia; writer's cramp; mirror dystonia; overflow
Focal hand dystonia (FHD) is a syndrome of sustained muscle contraction, frequently causing twisting and repetitive movements or abnormal postures of the hand. Motor overflow, defined as unintentional muscle contraction that accompanies but is anatomically distinct from the primary dystonic movement, is a frequent but often unrecognized feature of FHD. In this series of eight patients with FHD, we describe two patterns of motor overflow, termed ipsilateral overflow and contralateral overflow, and contrast it with the phenomenon termed mirror dystonia. These findings extend the phenomenology and provide evidence for widespread abnormalities of motor control in patients with focal hand dystonia. (c) 2007 Elsevier B.V All rights reserved.
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