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Toxic Polyneuropathy Due to Methyl n-Butyl KetoneAn Industrial Outbreak
Norman Allen, MD;
Jerry R. Mendell, MD;
Donald J. Billmaier, MD;
Robert E. Fontaine, MD;
John O'Neill, PhD
Arch Neurol. 1975;32(4):209-218.
Abstract
Cases of a toxic distal polyneuropathy have been studied in a plant producing plastic-coated and color-printed fabrics. After the screening of 1,157 employees, a total of 86 verified cases were detected. Of these, 11 were moderate to severe in intensity and usually with motor and sensory involvement; 38 were mild, with sensory signs prevailing; and 37 were minimal, but with characteristic electrodiagnostic abnormalities.
Muscle weakness and electromyographic abnormalities were predominantly distal. Reflex loss was minimal. Sensory deficits were distal and limited to pain, touch, and temperature discrimination with occasional loss of vibration sense. The distribution of involvement, severity of the disorder, and temporal course of the outbreak correlated with exposure with methyl n-butyl ketone. After elimination of this agent, improvement was noted in the majority of cases.
Author Affiliations
From the Division of Neurology (Drs. Allen and Mendell) and the Department of Pharmacology (Dr. O'Neill), Ohio State University College of Medicine and the Division of Occupational Health, Ohio Department of Health (Dr. Billmaier), Columbus, Ohio, and the Center for Disease Control, Atlanta, Ga (Dr. Fontaine).
Footnotes
Accepted for publication July 16, 1974.
Reprint requests to Ohio State University Hospitals, 410 W Tenth Ave, Columbus, OH 43210 (Dr. Allen).
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