Abstract
We saw 166 patients with motor neuron disease over a ten-year period, 116 with amyotrophic lateral sclerosis–111 sporadic and 5 familial–and 50 with progressive muscular atrophy. The age at onset varied widely, with the youngest mean onset occurring in the familial group. The most common presenting symptoms were leg or arm weakness and difficulty speaking or swallowing; fewer patients reported cramping, fasciculation, or fatigue. Mean survival time was less in familial cases, women, older patients, and in those with difficulty speaking and swallowing. A total of 50% of all patients were alive after four years; 13% were alive after ten years. Previous reports on the natural history of motor neuron disease may be overly pessimistic in suggesting that survival time rarely exceeds two years.
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Selected References
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