CHANGES IN BRAIN BIORHYTHMS DURING FUNCTIONAL TESTS IN PATIENTS WITH CERVICAL SPINAL CANAL STENOSIS

Kinash Irina Nikolaevna, Verkhozina Tatiana Konstantinovna, Ippolitova Elena Gennadievna, Tsyslyak Elena Sergeevna

To study the biopotentials of the brain, an analysis of electroencephalograms (EEG) was carried out in 47 patients (31 men, 16 women) aged 30-42 years with spinal stenosis (M.48.0). All patients had complaints of cervicalgia, brachialgia, cranialgia of a prolonged nature, difficult to treat Evaluate the use of electroencephalography (EEG) to study the functional state of the cerebral cortex in patients with cervical spinal stenosis Registration of EEG parameters was carried out according to standard methods. The diagnosis of spinal stenosis (M.48.0) was made on the basis of a clinical and instrumental examination of patients and radiography of the cervical spine; computed tomography (CT); magnetic resonance imaging (MRI), electroneuromyography (ENMG) When conducting a background EEG recording in the group of subjects, changes in indicators were found indicating the presence of desynchronization of biorhythms. Under functional loads in the form of hyperventilation and photostimulation, more serious changes in the amplitude-frequency characteristics of EEG biorhythms were recorded: changes in the alpha activity of the visual zone of the occipital cortex, motor zone, central gyri, frontal regions; an increase in the amplitude of the beta rhythm in the fronto-central leads; the presence of slow activity - low-frequency with low amplitude delta rhythm in the anterior areas of the brain and low-frequency with high amplitude in the parieto-occipital areas The data obtained indicate the formation of a pathological process, possibly caused by hypoxia and dyscirculatory disorders in the cerebrospinal fluid and circulatory system. Registration of theta rhythm with high frequency and amplitude, with a predominance in the frontal-central-parietal areas, as a result of weakening the inhibitory effects of the cortex on the mesodiencephalic structures responsible for the regulation of functions such as sleep, behavior, aggression or depression, changes in cognitive functions.

Keywords:electroencephalogram, brain biopotentials, stenosis