Electroencephalography during sleeep / after sleep deprivation (EEG) for adults

Electroencephalography while sleeping / after sleep deprivation (EEG) for adults

The examination involves registering the changes in the electrical potential on the surface of the scalp, coming from the activities of the neurons in the cerebral cortex. The examination is performed with the patient in a horizontal position, wearing a special cap with registering electrodes.

Encephalography is used, amongst others:

• in the diagnostics of epilepsy;
• in determining the causes of sleep disturbances;
• in assessing the condition of brain, e.g. after poisoning with neurotoxic substances, after neurosurgical operations;
• after head injuries;
• in frequent headaches.

Praparation for test

• It is important not to sleep throughout the night before the examination.
• The patient should be after a meal, preferably an easily digestible one.
• The hair should be freshly washed, without any hairspray, gels, oils, decorations, dreadlocks, etc.
• The patient should be healthy without any infections.
• On the examination day, prescription drugs should be taken as usual, while all other substances used out of the patient’s own free will should be discontinued 2-3 weeks before the examination. Moreover, the patient should know the names and doses of the medicines used.
• Before the examination, it is necessary to refrain from drinking coffee, strong tea and energy drinks.
• The day before the examination, it is forbidden to consume alcohol and use any substances such as recreational drugs and designer drugs.
• On the examination day, it is important to refrain from eating chocolate and drinking sparkling beverages, such as Coca-Cola.
• The patient must not fall asleep on the way to the clinic.
• It is important to arrive 30 minutes before the examination hour. The patient should have enough time to calm down before the examination.
• After sleep deprivation, it is forbidden to drive any vehicles. It is recommended to arrive at the centre under somebody else’s care.

Important information

• After sleep deprivation, it is forbidden to drive any vehicles. It is recommended to arrive at the centre under somebody else’s care.
  • In the case of resignation from or rescheduling of the EEG examination, we kindly ask our patients to cancel their booking not later than 24 hours before the planned examination. The earliest possible cancellation will make it possible for us to perform the examination for another patient, while keeping an adequate amount of time for such patient to prepare for the examination.
  • It is very important for the patient to arrive on time.
  • Information on the collection of the EEG results is given by the technician during the examination. The result of the examination is issued in a paper form, but at the patient’s request it may also be issued on a CD (at no additional charge).
  • If the patient has to undergo sleep electroencephalography (EEG) and waking electroencephalography (EEG), it is necessary to schedule the examinations for two separate days due to different preparation procedures.
  • Children under the age of 4 years are examined only while sleeping.