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肌阵挛为肌肉或肌肉群短时的、相继的、痉挛性的、不自主的收缩。常见于四肢及躯干,两侧对称,但亦可单独累及部份肌肉(如软腭),称之为腭肌阵挛(palatal myoclonus)或腭肌震颤(palatal nystagmus),此病临床少见,Pulec等(1961)在以往文献中只找到170例。腭肌阵挛的临床特征为腭部肌群单侧或双侧节律性收缩,频率每分钟50—240次,有时波及咽弓及咽侧壁,少数病例还可延及咽、喉、眼及横隔,称之为腭-咽-喉-眼-横隔肌阵挛。腭肌阵挛常出现耳鸣及他觉性耳鸣。本文报导两例并加以讨论。
Myoclonus A short, sequential, spasmodic, involuntary contraction of muscles or muscle groups. Common in the limbs and torso, symmetrical on both sides, but may also be involved in a separate part of the muscles (such as the soft palate), called the palatal myoclonus (palatal myoclonus) or palatal nystagmus, the disease is clinically rare, Pulec, etc. (1961) Only 170 cases were found in previous literature. The clinical features of palatal myoclonus are unilateral or bilateral rhythmic constriction of the palate muscles, the frequency of 50-240 times per minute, and sometimes spread to the pharyngeal arch and pharyngeal wall, a few cases can also extend to the pharynx, larynx, eye and Diaphragm, called the palate - pharynx - larynx - eye - diaphragm myoclonus. Tinnitus and his tinnitus tinnitus often appear in the palate myoclonus. This article reports two cases and discusses them.