[Post-poliomyelitis syndrome. Description of 2 cases].

The authors describe two cases of slowly progressing damage of the peripheral motor neuron which developed in the patients several tens of years following typical acute poliomyelitis anterior in childhood. The clinical features of these cases and the results of electrophysiological investigations are reported in detail. In the light of these cases and a literature review the authors discuss the clinical findings, course, electrophysiological, virological and immunological investigations, and hypotheses concerning the pathological mechanism of the postpoliomyelitis syndrome.