Background. The aim of the study was to validate a hypothesis about the presence of a concomitant peripheral nerves injury in patients suffering from neurodegenerative disorders. The study was focused on the correlation between motor involvement in Parkinson’s disease and peripheral nerves injury. Methods and Results. 23 patients suffering from Parkinson’s disease, which was diagnosed in terms of strict UK-PDBB criteria, were examined. There were 14 men (mean age: 57 years, mean age at the disease onset: 51years, mean disease duration: 7 years, mean duration of dopaminergic treatment: 4 years) and 9 women (mean age: 67 years, mean age at the disease onset: 63 years, mean duration of disease: 4 years, mean duration of dopaminergic treatment: 1 year). Polyneuropathy was clinically present and confirmed using EMG examination in 10 patients (43.5 %), 5 men and 5 women. Conclusions. Our observation indicates that the neurodegenerative process can be involved not only in the degeneration of central nervous system, but also in the peripheral disorders in this population.

        Key words: Parkinson’s disease, polyneuropathy, electromyography, correlation.