Laskawi R, Damenz W, Roggenkämper P, Brauneis J
Hals-Nasen-Ohrenklinik, Universität Göttingen.
Laryngorhinootologie. 1991 Feb;70(2):62-5. doi: 10.1055/s-2007-997989.
In 31 patients with an essential blepharospasm investigations were undertaken with transcranial cortical and cisternal magnetic stimulation of the facial nerve. Cortical stimulation was performed contralaterally, whereas cisternal stimulation was ipsilateral; the latencies and amplitudes of the potentials were determined. However, the extracranial part of the facial nerve was stimulated in the region of the stylomastoid foramen for neuromyography electrically. In most measurements the response potentials in the orbicularis oculi muscle and the levator labii muscle were determined. Cisternal stimulation yielded normal latencies, whereas cortical stimulation showed an increase of latency in some blepharospasm patients. A difference between the orbicularis oculi muscle and the levator labii muscle as known in patients with hemifacial spasm (20) could not be observed. The mean values of all latencies after cortical stimulation were normal. The method of transcranial magnetic stimulation is an important part of the complete investigation of patients with facial hyperkinesias as shown here in blepharospasm patients.
对31例特发性睑痉挛患者进行了经颅皮质和脑池面神经磁刺激检查。皮质刺激在对侧进行，而脑池刺激在同侧进行；测定了电位的潜伏期和波幅。然而，用电刺激在茎乳孔区域对颅外面神经进行神经肌电图检查。在大多数测量中，测定了眼轮匝肌和提上唇肌的反应电位。脑池刺激产生的潜伏期正常，而在一些睑痉挛患者中，皮质刺激显示潜伏期延长。未观察到睑裂肌与提上唇肌之间存在如半面痉挛患者中所熟知的差异。皮质刺激后所有潜伏期的平均值均正常。如本文在睑痉挛患者中所示，经颅磁刺激方法是对面部运动亢进患者进行全面检查的重要组成部分。
