[Clinico-electromyographic characteristics of amyotrophic lateral sclerosis and the syndrome of amyotrophic lateral sclerosis of vertebrogenic etiology].

Fifteen patients with lateral amyotrophic sclerosis (LAS) and 37 patients with the LAS syndrome of vertebrogenic etiology were examined by global electromyography and recording of the H-reflex. The findings confirmed the diagnostic significance of electromyography in specifying the localization and severity of the pathological process. The method of monsynaptic testing was found to be especially valuable for diagnosing the disease at the early stage of development which helps to differentiate between LAS and the LAS syndrome of vertebrogenic etiology.

[Importance of analysis of nonspecific activating influences on the cerebral cortex of patients with sequelae of closed cranio-cerebral injuries].

Clinico-electrophysiological examinations of 10 healthy subjects and 44 patients with sequelae of closed craniocerebral injuries were carried out. The injury sequelae were characterized by subclinical organic symptoms and prevalence of disturbances of CNS general function Changes of electroencephalograms within a frequency range of 8 to 13 Hz (the alpha-range) occurring in the response to a light flash within an interval of 0 to 1 sec were analyzed. Statistically significant correlations between the response character in the alpha-range and the prevailing localization of the injury (the cortex or the trunk structure) were revealed.

[Primary polyradiculoneuritis (course, outcome, work capacity of the patients)].

Clinical manifestations and outcomes of primary polyradiculoneuritis were examined in 82 patients, in 60 of whom these examinations were conducted for up to 5 years. The acute period was characterized by motor, sensor, and vegetative-trophic disturbances with prevalent involvement of the distal (rather than proximal) parts of the extremities according to the peripheral type. The immediate and late outcomes depended on the gravity of the disease course: on dismissal from hospitals recovery was registered in 47% of the patients, while the rest still showed various manifestations of the disease.