Fasciculations in peripheral neuropathies

Among 115 subjects suffering from peripheral neuropathies of various origins, in 71 (61.7%) no fasciculations were noticed in the lower limbs, while they were present in 27 (23.4%); 17 (14.7%) reported the presence of fasciculations that, however, were not observed during the neurological examination or on EMG. The only difference between the subjects without and with fasciculations seems to be the greater number of polyphasic potentials registered at the EMG in the latter.