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Asterixis or Myoclonus After Metrizamide Myelography
M. Gimenez, MD;
F. Martinez, MD;
M. Feijoo, PhD
Seccion de Neurologia Residencia Sanitaria S. Social Burgos, Spain
Arch Neurol. 1981;38(7):472.
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To the Editor.—
With regard to the article by Rubin et al (ARCHIVES 1980;37:522), we wish to make some observations. In particular, we wish that the involuntary movements in the two patients had been described in more detail, instead of summed up with the term "asterixis."
Report of a Case.—
On May 24, 1979, we performed cervical myelography with metrizamide by lumbar injection in a 51-year-old patient to rule out cervical myelopathy. Five hours afterward, he had an attack of nausea and vomiting. Later, he became confused and had slurred speech. Occasional spontaneous involuntary jerks were present in the extremities and were greatly exacerbated by voluntary motion; when he protruded his tongue, they were present also. A perfusion with diazepam, 80 mg/day, was started; the spontaneous myoclonus disappeared and the action myocolonus faded during the first six hours of treatment. Thirty hours after the beginning of his attack, the patient's
. . . [Full Text PDF of this Article]
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