肌肉颤搐

肌肉颤搐
类型神經肌肉疾病[*]
分类和外部资源
醫學專科神經學
ICD-10G51.4
DiseasesDB31530
eMedicineneuro/235
MeSHD020385
[编辑此条目的维基数据]
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肌肉颤搐（英語：myokymia）或肌颤[1]、肌纤维颤搐、肌颤搐，是一种不自主的、自发性的局部肌肉或肌肉群抖动现象。

肌颤发生时，一块或一群肌肉的肌纤维在数厘米范围内发生小幅度、小范围、缓慢、持续、不规则的波动性颤动。这种连续的不同部位的肌纤维活动形成波动样、虫蠕样或水波纹样运动，触之有滚动感，运动可加重或诱发，休息或睡眠时仍可持续存在[2]。可见于特发性肌肉颤搐、神经性肌强直、艾萨克综合征[3]等。

肌颤和痉挛不同的是，肌肉的颤搐现象所产生的力并不足以使关节移动。英语 myokymia 常会被用来指代眼睑肌颤的情况（俗称“眼皮跳”），该现象在普通人身上时常发生，通常持续时间很短，但也有可能持续三周。

参考

  1. ^ 袁世荧,姚尚龙.不同麻醉诱导药对血钾浓度变化及肌颤和肌痛的影响[J].中华麻醉学杂志, 2000, 20(1):3.DOI:10.3760/j.issn:0254-1416.2000.01.004.
  2. ^ Gutmann L, Gutmann L. Myokymia and neuromyotonia 2004. J Neurol. 2004 Feb;251(2):138-42. doi: 10.1007/s00415-004-0331-5. PMID 14991346.
  3. ^ Ahmed A, Simmons Z. Isaacs syndrome: A review. Muscle Nerve. 2015 Jul;52(1):5-12. doi: 10.1002/mus.24632. Epub 2015 Mar 31. PMID 25736532.

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