THE ISSUE of trauma in the production or precipitation of amyotrophic lateral sclerosis is difficult to assess, as it is in all nervous diseases. Experience with 2 patients in whom symptoms of the disease appeared to follow the use of a pneumatic drill raised the problem of whether repeated trauma might play a role in precipitation of the disease, and for this reason we report the cases in question.
REPORT OF CASES
—Amyotrophic lateral sclerosis in a 63 year old man who had worked with a pneumatic hand drill for nine months, symptoms appearing in the eighth month of its use; signs of anterior horn cell disease confined largely to the cervical portion of the spinal cord.
—E. H., a 63 year old Armenian man, was admitted to the Jefferson Hospital on May 5, 1947, with the complaint of weakness and twitching of the arms. Twenty months
ALPERS BJ, FARMER RA. ROLE OF REPEATED TRAUMA BY PNEUMATIC DRILL IN PRODUCTION OF AMYOTROPHIC LATERAL SCLEROSIS. Arch NeurPsych. 1949;62(2):178–182. doi:10.1001/archneurpsyc.1949.02310140055005
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