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Localized Myokymia Caused by Peripheral Nerve Injury
Jose L. Medina, MD;
Sudhansu Chokroverty, MBBS, MRCP;
Marcelino Reyes, MD
Arch Neurol. 1976;33(8):587-588.
Abstract
• One year after a gunshot wound in the popliteal fossa, a 30-year-old man began to experience cramps and myokymia in the left gastrocnemius muscle. Myokymia was characterized by vermicular fibrillary movements localized to the gastrocnemius muscle and accompanied by plantarflexion and dorsiflexion of the toes. Neurologic examination, nerve conduction velocities, electromyograms, and muscle biopsy findings showed affection of left common peroneal and posterior tibial nerves. The myokymia disappeared during sleep, spinal anesthesia, and treatment with carbamazepine.
Author Affiliations
From the Neurology Service, Hines Veterans Administration Hospital, Hines, Ill, and the Department of Neurology (Neuropathology), Mount Sinai Hospital Medical Center, Chicago.
Footnotes
Accepted for publication March 10, 1976.
Read in part before the Fifth International Congress of Electromyography, Rochester, Minn, 1975.
Reprint requests to Neurology Service (180), Hines Veterans Administration Hospital, Hines, IL 60141 (Dr Medina).
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