[Reaction of the vestibular apparatus during transverse linear acceleration].
Explore the source record for details and available documents.
Biomedical subjects
Publications and source records attributed to M Lukomski.
Explore the source record for details and available documents.
Explore the source record for details and available documents.
Explore the source record for details and available documents.
The aim of the study was objective assessment of the results of betahistyne treatment in patients with chronic insufficiency of the vertebrobasilar artery system by means of elektronystagmography (ENG). The patients had mostly vertigo and/or dizziness, headache, ear buzzing and disequilibrium sensations. In 46 patients clinical, audiological and ENG examinations were carried out. All symptoms decreased in frequency after the treatment. Vertigo and/or dizziness improvement was noted in 58.5% patients of cases, headache decreased in 56.5% of cases, ear buzzing decreased in 42.8% and hearing improved in 22.2%. Before treatment 76% of patients had pathologic changes in ENG, after treatment improvement of ENG was noted in all tests, particularly in 17 cases (48.6%). This was most frequent in spontaneous nystagmus (83%), positional test (85%), caloric test (83%), and optokinetic test (71%). Comparison of complaints and ENG findings before and after treatment showed improvement both in symptoms and signs. Betaserc was effective in the treatment of patients with vertebrobasilar system insufficiency both in subjective opinions of patients and in objective assessment by ENG.
Explore the source record for details and available documents.
Fifty women with migrainous headaches were studied. The state of the vestibular system was assessed by ENG, including recording of spontaneous nystagmus, positional, thermal and kinetic nystagmus, recording of following of pendulum movements with eyes, and optokinetic nystagmus. ENG investigations were done in all cases between migrainous attacks, and in 20 cases also during migraine attack. During the attack in 18 women changes in the time of visual stimuli predominated, between the attacks ENG changes were observed in 24 cases.
The authors report the results of electronystagmographic investigations of the eyes in patients with damage to the motor nerves of the eyes, their neuromuscular junctions in cases of internuclear ophthalmoplegia, and lesions of the cerebellar and extrapyramidal systems. In all these cases pathological records of these movements were found which were fairly characteristic of a given type of damage.
The authors used a modification of ENG investigation which makes possible recording of the movements of each eyeball separately in two planes: horizontal and vertical. The authors used this method for analysis of cases with lesions of the motor nerves of to the eyeballs. The group included 20 patients with lesions of the motor nerves of the eyeballs of various origin. The control group included 20 healthy subjects. In nerve lesions a decrease of intensity of ENG tracings was observed when the rapid phase of nystagmus agreed with the direction of action of the eliminated motor nerves. Provocation of eyeballs to movements of lower amplitude but greater angular velocity (the test of induced nystagmus) increased changes. The change of deviation angle during investigation had also an effect on the appearance of pathological changes in the record. Changes were observed also in the motor activity of the unaffected eyeball.
The study was carried out on 223 alcoholics, 96 drug addicts and 50 healthy persons as a control group. Clinical otolaryngological examination, ENG examination, and audiometry diagnosis were made. The results showed lesions of the central part of the vestibular system in alcohol and drug addicts which are much more evident on ENG examination than in clinical otolaryngological findings. We have observed that trauma capitis does not cause increased vestibular disturbances in addicted persons. Audiologic findings indicate significant hearing loss in both groups.
18 patients suffering from ALS underwent ENG examinations. Motor function of eyeballs in respect of optic and vestibular stimulus was evaluated. The study demonstrated that 8 patients exhibited lesion of central part of the vestibular system and in 2 cases features of peripheral type of vestibular disturbances were found.