Population
18 patients with a history of poliomyelitis
Design
Case-control
Authors
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Denervation testing does not identify new weakness after polio; leaves open alternative mechanisms and should not yet guide diagnosis.
Electromyographic and muscle-biopsy evidence of ongoing denervation occurs in patients with prior paralytic poliomyelitis regardless of whether they develop new weakness.
Cashman et al. (1987) studied this question.