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What is an electroencephalogram?

Electroencephalography is a type of examination of the nervous system that helps to visualize the general electrical activity of neurons in the brain.

The examination result is influenced by a number of factors. In particular, the nature of the recording depends on the patient’s age, his emotional state, the level of wakefulness, the presence or absence of visual sensations (when opening and closing the eyes, the nature of the recorded electrical activity changes). Therefore, patients are advised to properly prepare for the examination.

Photo: Depositphotos

Why is an electroencephalogram needed and what does this examination give?

1. Electroencephalography is of great importance in the diagnosis of diseases accompanied by convulsive syndromes, including epilepsy… Registration during an epileptic seizure of characteristic rhythmic repetitive discharges is considered an objective confirmation of the diagnosis. However, during the interictal period, electrical activity in the brain may appear normal.

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2. The importance of the electroencephalogram in identifying non-convulsive epilepsy and similar states. Typical paroxysms in this case are not observed. In this case, the diagnosis is made based on the results of the examination.

3. In addition to detecting epilepsy and confirming the diagnosis of this serious disease, an electroencephalogram is used and to monitor the effectiveness of treatment… It is the gradual extinction of outbreaks of seizure activity in the brain that is the criterion for the correctness of the prescribed treatment. And the absence of any manifestations of convulsive readiness for a long time is the basis for starting a gradual decrease in the dose of anticonvulsants that the patient takes. Such a decision is made, as a rule, by a specialist epileptologist in the case of a persistent absence of seizure activity.

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4. Another area of ​​using the electroencephalogram for diagnostic purposes is determination of the depth of oppression of consciousness in patients in serious condition. Each of the degrees of coma corresponds to characteristic changes in the electroencephalogram, which allows you to assess the severity of the condition, choose the appropriate treatment and make the most reliable prognosis.

What is an electroencephalogram?
Photo: Depositphotos

An electroencephalogram is a highly specialized examination that is prescribed according to certain indications. Thanks to this type of examination in an ordinary polyclinic, it becomes possible to timely identify serious diseases and determine the correct treatment tactics for patients with convulsive syndrome.

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Source : shkolazhizni.ru

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