1 Video View·Feb 17, 2025 #eeg #medtoday An electroencephalogram, or EEG, is a recording of brain activity.
During the test, small electrodes are attached to the scalp to pick up electrical signals from the brain.
These signals show up as wavy lines on an EEG recording.
This procedure is usually carried out by a highly trained specialist called a clinical neurophysiologist.
An electroencephalogram can be used to help diagnose and monitor several conditions affecting the brain.
The main use of an electroencephalogram is for the diagnosis and monitoring of epilepsy, a condition characterized by recurrent seizures.
Some other indications of an electroencephalogram include the following.
To assess the degree of encephalopathy.
In patients with altered mental status.
Syncope or loss of consciousness.
To induce therapeutic coma.
In comatose patients in the ICU.
For the prognostication of a cardiac arrest.
Memory problems and dementia.
During anesthetic procedures to monitor the depth of anesthesia.
And to assess the brain function in patients diagnosed with chronic brain disorders such as multiple sclerosis, brain tumors, and in patients with head injuries.
#eeg #medtoday
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an electroencephalogram or EEG is a
recording of brain activity
during the test small electrodes are
attached to the scalp to pick up
electrical signals from the brain these
signals show up as wavy lines on an EEG
recording
this procedure is usually carried out by
a highly trained specialist called the
clinical neurophysiologist an
electroencephalogram can be used to help
diagnose and monitor several conditions
affecting the brain the main use of an
electroencephalogram is for the
diagnosis and monitoring of epilepsy a
condition characterized by recurrent
seizures some other indications of an
electroencephalogram include the
following to assess the degree of
encephalopathy in patients with altered
mental status
syncope or loss of consciousness to
induce therapeutic coma in comatose
patients in the ICU
for the prognostication of a cardiac
arrest memory problems and dementia
during anesthetic procedures to monitor
the depth of anesthesia and to assess
the brain function in patients diagnosed
with chronic brain disorders such as
multiple sclerosis brain tumors and in
patients with head injuries no patient
preparation is needed before the test
and fasting is not required to undergo
an electrons phallogram patients should
make sure their hair is clean and dry
and they should be advised to avoid
applying hair gel and wax before coming
for the procedure before starting the
test the scalp should be cleaned after
that about 20 electrodes which are
connected to a recording machine are
attached to this Gap a routine EEG
recording usually takes around 20 to 40
minutes
patients are asked to rest quietly
during the procedure and open or close
eyes from time to time in most cases
they have to breath in and out deeply
for a few minutes at the end of the
procedure a flashing light may be placed
nearby to monitor the brain activity
with the light
sleep deprived EEG is another type of
electroencephalogram
this test is done while the patient is
asleep it may be used if a routine EEG
does not provide enough information or
to evaluate for Sleep disorders
most often patients are asked to stay
awake the night before the test to help
ensure they can sleep during the test an
ambulatory EEG is where brain activity
is recorded throughout the day and night
over a period of one or more days the
electrodes are attached to a small
portable EEG recorder patients can
continue their normal daily activities
during this test video Telemetry is
another type of electroencephalogram
it is a special type of EEG where the
patient is filmed while the recording is
taken
this test provides more information
about brain activity it is usually
carried out over a few days while
staying in a purpose-built hospital
Suite after an EEG patients usually can
be discharged soon EEG procedure is
painless comfortable and generally very
safe
sometimes patients might experience a
mild tiredness and lightheadedness after
the test
some people might have a tingling
sensation in the lips and fingers for a
few minutes finally patients with
epilepsy have a minor risk of having a
seizure during the test
