Blepharospasm, Oromandibular Dystonia, and Meige Syndrome: Clinical and Genetic Update

oleh: Hongying Ma, Hongying Ma, Jian Qu, Jian Qu, Liangjun Ye, Yi Shu, Qiang Qu, Qiang Qu

Format: Article
Diterbitkan: Frontiers Media S.A. 2021-03-01

Deskripsi

Meige syndrome (MS) is cranial dystonia characterized by the combination of upper and lower cranial involvement and including binocular eyelid spasms (blepharospasm; BSP) and involuntary movements of the jaw muscles (oromandibular dystonia; OMD). The etiology and pathogenesis of this disorder of the extrapyramidal system are not well-understood. Neurologic and ophthalmic examinations often reveal no abnormalities, making diagnosis difficult and often resulting in misdiagnosis. A small proportion of patients have a family history of the disease, but to date no causative genes have been identified to date and no cure is available, although botulinum toxin A therapy effectively mitigates the symptoms and deep brain stimulation is gaining increasing attention as a viable alternative treatment option. Here we review the history and progress of research on MS, BSP, and OMD, as well as the etiology, pathology, diagnosis, and treatment.