An EEG test is helpful to diagnose and treat seizure disorders, to look for
the cause of confusion, and to evaluate head
injuries, tumors, infections, degenerative diseases, and metabolic
disturbances that affect the brain. It is also used
to evaluate sleep disorders and to investigate periods of unconsciousness.
An EEG is not painful. Small button-like electrodes are placed in precise
spots on the head. For most patients a
combination of special paste and glue is used to ensure the electrodes stay
in place. At the end of the EEG study a
solution is used to remove the glue, and electrodes and paste are washed
away with damp wash cloths.
An EEG shows brain wave activity by using electrodes to record and pick up
electrical signals from brain cells. When
someone has an epileptic seizure, their brain activity changes. This change
can be seen on the EEG.
Your doctor may order a video EEG in order to provide you with the best care.
The video will allow viewing of the
brainwave activity AND a video/audio recording simultaneously. A neurologist
examines the EEG recording for
abnormalities in the brain-wave pattern, which may reflect diseases of the
EEG results are reported by the neurologist who reads the EEG everyday. The
neurologists communicate with the primary
care physician. The EEG is a part of a patient's medical record, and upon
request, can be obtained.