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Neurology 2002;58:644-647
© 2002 American Academy of Neurology
Brief Communications

Familial nocturnal facio-mandibular myoclonus mimicking sleep bruxism

R. Vetrugno, MD, PhD;, F. Provini, MD, PhD;, G. Plazzi, MD;, C. Lombardi, MD, PhD;, R. Liguori, MD;, E. Lugaresi, MD; and P. Montagna, MD

From the Institute of Clinical Neurology, Bologna, Italy.

Address correspondence and reprint requests to Dr. Roberto Vetrugno, Istituto di Clinica Neurologica dell’Università di Bologna, Via Ugo Foscolo 7, 40123 Bologna, Italy; e-mail: vetrugno{at}neuro.unibo.it

A mother and son presented with a multi-decade history of nocturnal tongue biting and bleeding. In both patients, video polysomnographic recordings documented bursts of electromyographic activity originating in the masseter and spreading to orbicularis oris and oculi muscles, present only during sleep. Faciomandibular myoclonic activity during sleep mimics sleep bruxism and may be familial.






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