Electroencephalogram (EEG): Uses, Indications & What to Expect

Uses of Electroencephalogram (EEG)

An electroencephalogram (EEG) is a non-invasive medical test that records the electrical activity of the brain. It is commonly used to diagnose and monitor a variety of brain conditions, including:

* Epilepsy: EEG is the primary tool used to diagnose epilepsy and identify different types of seizures.

* Head injuries: EEG can detect abnormalities in brain activity caused by a head injury, such as a concussion.

* Encephalitis: EEG can identify inflammation in the brain, such as that caused by encephalitis, a viral infection of the brain.

* Meningitis: EEG can help diagnose meningitis, a bacterial infection of the brain and spinal cord.

* Brain tumors: EEG can detect changes in brain activity caused by a brain tumor.

* Sleep disorders: EEG is used to diagnose and study sleep disorders, such as narcolepsy and sleep apnea.

* Psychiatric disorders: EEG may be used to study psychiatric disorders, such as schizophrenia and depression.

Indications for EEG

An EEG may be recommended in individuals with the following symptoms or conditions:

* Seizures or recurrent episodes of unexplained loss of consciousness

* Confusion or disorientation

* Memory loss

* Difficulty speaking or understanding speech

* Vision problems

* Headaches

* Dizziness

* Movement disorders

* Sleep disorders

* Psychiatric symptoms, such as hallucinations or delusions

Additional Information

* An EEG is a painless procedure that typically takes about 20 to 30 minutes.

* During an EEG, the patient is seated in a comfortable chair and electrodes are placed on the scalp. These electrodes record the electrical activity of the brain.

* The EEG results are interpreted by a neurologist, who will provide a diagnosis and recommend appropriate treatment.