To date, electroencephalography is one of the most common and available methods for diagnosing changes occurring in the brain. This study of the nervous system makes it possible to evaluate the electrical activity of the brain. During the procedure, the brain lesions are identified, convulsive alertness, electrical activity. Special preparation for the study is not needed, it has no contraindications and does not cause unpleasant sensations.
Indications for Electroencephalography
There are certain conditions in which a person should definitely consult a doctor to conduct an EEG.These include seizures of involuntary movements, unusual sensations, unexplained behavior, fainting. One of the most common causes of such conditions is epilepsy.
Also this study is necessarily conducted by after traumatic brain damage .Through this technique, it is possible to determine the site of damage and to assess the degree of complexity of brain changes.
So, to the established indications for the performance of electroencephalography, the following states can be attributed:
- Epilepsy. This procedure allows you to identify the places of the brain, which are responsible for launching seizures. It provides an opportunity to evaluate the effectiveness of medicines, to decide on the cessation of drug therapy, to assess the severity of brain disruption in the period outside the seizures.
- Seizures of an unidentified etiology.
- Fainting states.
- Suspected tumor. Electroencephalography makes it possible to determine the need for additional studies.
- Sleep disorders of a paroxysmal nature.
- Brain Injuries. The study provides an opportunity to assess the degree of brain damage and the effectiveness of its recovery. Repeated procedures allow you to determine the rate of disappearance of symptoms of impaired brain function.
- Circulatory encephalopathy.
- Condition after brain surgery.
- Disturbances in the blood circulation of the brain.
- Inflammatory processes in the central nervous system - meningitis, cerebral arachnoiditis, encephalitis.
- Delayed psychological or speech development of uncertain etiology.
- Perinatal disorder in the nervous system.
- Endocrine pathology.
- Disorders of paroxysmal nature.
In addition, the computer EEG allows you to diagnose to people who complain of the following symptoms:
- Headaches;
- Hypertension, fluctuations in blood pressure;
- Dizziness;
- Vegetosovascular dystonia;
- Neurotic disorders;
- Vertebral-basilar insufficiency in the case of cervical osteochondrosis.
The main advantage of electroencephalography is the fact that has no contraindications to its implementation .In addition, this procedure is carried out rather quickly and does not cause discomfort.
Preparing for the
procedure Before testing, you should wash and dry your hair. Thus it is impossible to use means for stacking - varnishes, sprays, mousses. In addition, you need to untwist the braids, remove hair clips from your hair, you can not wear jewelry on your head. Sometimes the doctor asks to reduce the length of sleep before performing the study. This is necessary for a person to fall asleep during the course of electroencephalography. In this case, the duration of sleep is reduced by an average of 3-4 hours. Use sedatives are not possible, because they can affect the results.
Also it is necessary to take a towel - it will help to erase the remains of electrode gel from the head.
Methodology of the
In adults
During the study, the patient, as a rule, sits in an armchair or lies on a bed. At the same time electrodes are attached to his head - this is done with the help of a special hat-helmet. If there is a need for a long-term study, the electrodes are fixed with a special paste and glue. When recording, a person must sit or lie still - the any movement creates interference, which complicates the decoding of the recording.
The photo shows the process of recording the brain activity
During the procedure, almost always make samples with hyperventilation and photostimulation. During hyperventilation, the patient should take deep breaths within a few minutes. Photostimulation consists in exposure to bright light, which is directed into the eyes of the patient. Both samples provide an opportunity to identify certain violations that can not be determined at rest. If necessary, electroencephalography is carried out and during sleep. However, the study does not imply the introduction of medicines into the body or the effects of electric current.
During the procedure, a video recording can be conducted - in this case the study is called EEG-video monitoring .
The duration of the procedure can be different - this indicator affects the diagnosis, the patient's condition, the presence of epileptic seizures and the laboratory's capabilities. In most cases, the necessary information can be obtained within half an hour. But sometimes the doctor increases or decreases the duration of the recording.
In children
This procedure is prescribed for those children who have any deviations in the development of - motor, speech, mental. Even if the child has no seizures, electroencephalography will reveal disorders in the functioning of the brain.
For children, this procedure is usually prescribed in the following cases:
- To determine the stages of the development of the brain, taking into account the age of the child.
- For a thorough study of epilepsy and monitoring the effectiveness of treatment.
- If the child has fainting, seizures, etc.
- If there is a development gap or a psycho-emotional disability.
- With a decline in the child's performance, a tendency to inexplicable behavior.
- With fears and nightmares.
- After traumatic brain damage.
- In cases of cerebral blood flow disorders.
Of course, carrying out the electroencephalography in young children has certain features. In particular, it is quite difficult to prohibit a child from moving during the procedure. It is recommended to keep or distract attention with the help of toys. In any case, conducting electroencephalography in a child will have inevitable hindrances, which will have to be tolerated.
Where can I make a survey?
In Moscow , there are quite a few medical centers that conduct this research:
- Medical Center "NEARMEDIC".The cost of the procedure is 2500 r. Address: 38 Marshala Zhukova Ave., Cor.1
- Medical Center "Doromed".The cost of the procedure is 2700 rubles. Address: st. Lyapidevskogo, 14 p. 1
- Medical center «Spectra».The cost of the procedure is 1700 rubles. Address: st. Gerasima Kurina, etc. 16.
- Medical center "PENTA-CLINIC".The cost of the procedure is 2750 r. Address: Chistoprudny Boulevard, 12 bldg.2.
- Medical center "Clinic number 1".The price of the procedure is 2100 rubles. Address: Khimki, st. Moscow, house 14
Video about electroencephalography:
Electroencephalography is one of the most accessible methods of studying the state of the brain. It allows you to assess the state of a person with epilepsy, circulatory disorders in the brain, injuries, etc. In addition, this procedure has non-invasive character, does not cause pain and does not harm health, therefore it can be carried out even for children.