What is a VEP test?
Evoked potential test in New York is a method of recording the reactions of various structures of the brain to external stimuli (auditory, visual and somatosensory), which makes it possible to determine the state of the nerve pathways, the pathways of deep sensitivity (vibration sensitivity, feeling of pressure, muscular-articular feeling) and to study the work of the autonomic nervous system.
The use of Evoked Potential Tests is an invaluable tool for early detection and prognosis of neurological disorders in various diseases, such as:
- brain tumors;
- consequences of traumatic brain injury;
- multiple sclerosis and others.
On average, the study takes from 30 minutes to an hour.
The purpose of Visual evoked potential test
Generally, the examination in Advanced Sleep Care is conducted for a number of reasons:
- identifying the level of damage to the nervous system;
- determining the prevalence of the process;
- determination of the nature of the defeat;
- determination of the severity of the pathological process;
- assessment of the prognosis of the disease, clarification of the diagnosis, control of the effectiveness of treatment.
What else can be identified with Evoked Potential Tests?
While going through Evoked potential test in New York there is an opportunity to conduct other important studies:
- Auditory evoked potentials. This technology enables to determine the level and nature of damage to the auditory and vestibular system along its entire length from ear receptors to the cerebral cortex. Evoked potential is indicated for vestibular disorders (dizziness, impaired coordination, etc.), early diagnosis of demyelinating illnesses and neuroma of the auditory nerve, hearing loss, tinnitus. The method is also useful in examining patients with pathology of ENT organs (otitis media, otosclerosis, sensorineural hearing loss).
- Visual evoked potentials. The method allows you to determine the presence or absence of damage from the retina to the cerebral cortex. The examination helps in the differential diagnosis of degenerative lesions of the visual tract, multiple sclerosis, retrobulbar neuritis, with pituitary adenoma, decreased vision, etc. Also, VEP test can determine the prognosis of visual impairments in diseases such as glaucoma, temporal arteritis, diabetes mellitus, optic nerve injury to name but a few.
- Somatosensory evoked potentials. Evoked potential test in New York allows examining the state of the sensitive system from the receptors of the skin of the hands and feet to the cerebral cortex. It is used to diagnose multiple sclerosis, funicular myelosis, polyneuropathies, various disorders, injuries of the nerve plexuses, peripheral nerves, spinal cord.
- Cognitive evoked potentials. The examination is shown for the assessment of cognitive disorders in the clinical and preclinical stages, the dynamics of cognitive impairments during treatment. It is used to identify the severity of dementia of various origins and early preclinical detection of cognitive impairments, for example checking the brain function in children with problems of behavior, attention, learning. The method is also used in professional selection and assessment of side drug effects. It is used in both adults and children.
How to prepare for an evoked potential study?
On the day of Visual evoked potential test, it is necessary to follow several recommendations from our specialists:
- stop taking vascular drugs and tranquilizers, as they can distort the results of the examination;
- don’t use chemicals;
- have a good sleep before testing.
It’s prohibited to have pathological processes on the skin during examination. Relative contraindications include the presence of epilepsy, mental disorders, severe angina pectoris or hypertension, as well as a pacemaker.