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Prolonged Delirium After Metrizamide Myelography

Richard L. Elliott, MD, PhD; John H. Wild Jr, MD; Walter T. Snow, MD
JAMA. 1984;252(15):2057-2058. doi:10.1001/jama.1984.03350150057022.
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MYELOGRAPHY with metrizamide (Amipaque) is an increasingly popular technique useful in the evaluation of radiculopathy. The most common neurologic side effects are headache, nausea, vomiting, and dizziness.1-3 More serious neuropsychiatric side effects reported include confusional states, hallucinations, sleep disturbances, agitation, and other signs of altered mental status.1-5 These changes have been reported as brief, lasting less than 48 hours, and benign in outcome.

We report a case, the first, to the best of our knowledge, in which the symptoms appearing after metrizamide myelography were severe and prolonged. A brief discussion of the etiology and treatment of these side effects follows the case presentation.

Report of a Case  A 56-year-old woman had a three-year history of low back and right leg pain precipitated by a minor injury. After an exacerbation of the pain that was not relieved by 14 days of bed rest, she was admitted to the hospital.


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