Dou Ning-Ning, Zhong Jun, Zhou Qiu-Meng, Zhu Jin, Wang Yong-Nan, Li Shi-Ting
From the Department of Neurosurgery, XinHua Hospital Shanghai JiaoTong University School of Medicine, Shanghai, China.
J Craniofac Surg. 2014 May;25(3):916-8. doi: 10.1097/SCS.0000000000000662.
Hemimasticatory spasm is a rare disease; with little knowledge of the pathogenesis, it has still been intractable today. We presented a 56-year-old woman with involuntary painful spasm in her left masseter muscle for 11 years. The patient was successfully treated with microvascular decompression surgery. An offending superior cerebellar artery was found to contact with the motor branch of the trigeminal nerve root, which was then removed away and pieces of soft wadding were interposed between the nerve and the vessel to assure the separation. Postoperatively, the symptom totally disappeared and no recurrence was observed during the 7 months' follow-up. The treatment as well as the pathogenesis of the disease was reviewed, and we put forward a new hypothesis.
偏侧咀嚼肌痉挛是一种罕见疾病；由于对其发病机制了解甚少，至今仍难以治疗。我们报告了一位56岁女性，其左侧咬肌出现非自愿性疼痛痉挛11年。该患者通过微血管减压手术成功治愈。发现一条肇事的小脑上动脉与三叉神经根的运动支相接触，随后将其移开，并在神经与血管之间插入软棉片以确保分离。术后，症状完全消失，在7个月的随访期间未观察到复发。我们对该疾病的治疗方法及发病机制进行了综述，并提出了一个新的假说。
