Ashenhurst E M
Can Med Assoc J. 1973 Nov 3;109(9):876-8.
The literature concerning essential tremor is confusing. Some accounts describe tremor of a resting type and its accompaniment by other neurological abnormalities. Critical analysis of the pertinent literature leaves some question as to the validity of these observations.Clinical analysis of 34 patients with essential tremor, personally observed during a four-year period, reveals this to be a monosymptomatic condition. The tremor was usually of both a postural and action type and resting tremor was not observed. There were no other neurological abnormalities. Serious disability was infrequent and, when present, was related to upper limb tremor. Essential tremor should be readily distinguishable from other central nervous system diseases but it may be confused with Parkinson's disease or cerebellar ataxia.
关于特发性震颤的文献令人困惑。一些报道描述了静止型震颤及其伴有其他神经功能异常的情况。对相关文献的批判性分析对这些观察结果的有效性提出了一些疑问。在四年期间亲自观察的34例特发性震颤患者的临床分析表明，这是一种单症状疾病。震颤通常为姿势性和动作性，未观察到静止性震颤。没有其他神经功能异常。严重残疾很少见，若出现则与上肢震颤有关。特发性震颤应易于与其他中枢神经系统疾病区分开来，但可能与帕金森病或小脑共济失调相混淆。
