痉挛性失音为神经性疾患,病因不明,治疗方法各异。痉挛为肌肉的不随意收缩,可为阵挛性的,也可为强直性的。阵挛时,肌肉纤维收缩和松弛快速交替不断,强直时肌肉长时间保持在收缩状态。为治疗痉挛性声嘶,作者试图有选择地阻滞和肌肉痉挛有关的动作电位,不影响肌肉正常收缩,试图确定采用阻断电极 Spasmodic aphonia is a neurological disorder with unknown etiology and different treatment methods. Spasms involuntary muscle contraction can be clonic, but also for the tonic. Clonorchia, muscle fiber contraction and relaxation rapidly alternating continuously, when the muscle strength to maintain a long contraction. In order to treat spasmodic hoarseness, the authors attempted to selectively block the action potentials associated with muscle spasms without affecting the normal muscle contractions, trying to determine whether blocking electrodes