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Response to Clonazepam Therapy

Robert Levy, MD; Walter Plassche, MD; Jack Riggs, MD; Ira Shoulson, MD

Arch Neurol. 1983;40(4):254-255.

	Since this article does not have an abstract, we have provided the first 150 words of the full text PDF and any section headings.

Spinal myoclonus consists of sudden, involuntary muscle contractions innervated by a limited segment of the spinal cord and unassociated with EEG abnormalities or alterations in consciousness.^1-10 Causes of spinal myoclonus include infection (viral^1,5,8-11 and postvaccinal¹²), intramedullary glioma,^3,13-15 extradural cord compression (cervical spondylosis,¹ metastatic carcinoma,⁴ and extramedullary cyst¹¹), trauma,¹⁶ and degenerative processes (atrophy,¹ motor neuron disease,^16,17 meningomyelocele,⁶ and syringomyelia¹⁶). We report a case of spinal myoclonus related to an arteriovenous malformation (AVM) of the spinal cord.

REPORT OF A CASE

A 57-year-old man experienced a gradual onset, over a three-year period of "shiverlike" movements affecting his thorax and upper abdomen. These involuntary movements lasted for 5 to 10 seconds and initially occurred two to three times a week. Approximately six months before the patient's hospital admission, the frequency of the paroxysmal attacks gradually increased to nearly 100 episodes . . . [Full Text PDF of this Article]

Author Affiliations
From the Departments of Neurology (Drs Levy, Riggs, and Shoulson) and Radiology (Dr Plassche), University of Rochester (NY) School of Medicine.

Footnotes
Accepted for publication Oct 7, 1982.

Reprint requests to Department of Neurology, University of Rochester Medical Center, 601 Elmwood Ave, Rochester, NY 14642 (Dr Levy).

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