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J Samusik

Publications and source records attributed to J Samusik.

24 records · Page 2Linked to original sources
PubMedDate not supplied

[Sensory nerve conduction of upper extremity nerves in degenerative cervical vertebral disease].

Sensory conduction was measured in the median, ulnar and radial nerves in patients with clinical and radiological evidence of degenerative disease of cervical spine. A significant reduction of conduction velocity and decreased amplitude of action potentials in nerves were demonstrated. In the group of 50 patients in only one case no changes in sensory conduction in upper extremity nerves were found. In the remaining 49 cases reduction of conduction velocity in sensory nerves or decreased amplitude of nerve action potentials were found in at least one of these nerves. Since evident disturbances in sensory conduction were observed even in the extremities without any subjective or objective abnormalities it may be supposed that determination of sensory nerve conduction in upper extremities may be an adjunct method in early diagnosis of degenerative cervical vertebral disease.

Action Potentials↗
PubMedDate not supplied

[Conduction in the motor neurons of the peripheral nerves in hemiplegia of cerebral origin].

A study of motor nerve conduction velocities in median, ulnar, peroneal and tibial nerves bilaterally in 50 hemiplegic patients revealed a statistically significant slowing in the affected limbs compared with the unaffected side. The decrease of nerve conduction velocity was not related to any of the following factors: duration of stroke, degree of paralysis, degree of spasticity, side of paralysis, age of patients, and sex ef patients. The results can indicate that lower motor neurons are indeed affected by upper motor neuron lesions. The slowing of the nerve conduction velocity of motor peripheral nerves is probably due to the loss of trophic influence from higher centres or its decline. The author suggests that this phenomenon leads to a selective deterioration of thick nerve fibres while only thinner ones continue conducting impulses.

Adult↗