What can cause abnormal EEG results?

Abnormal results on an EEG test may be due to:

• Abnormal bleeding (hemorrhage)
• An abnormal structure in the brain (such as a brain tumor)
• Tissue death due to a blockage in blood flow (cerebral infarction)
• Drug or alcohol abuse.
• Head injury.
• Migraines (in some cases)
• Seizure disorder (such as epilepsy)

How do I report EEG results?

The EEG report is structured to include demographics of the patient studied and reason for the EEG; specifics of the EEG techniques used; a description of the patterns, frequencies, voltages, and progression of the EEG pattern that were recorded; and finally a clinical impression of the EEG significance.

Is abnormal EEG bad?

Yes, EEG can be bad for you. The consequences of being misdiagnosed with epilepsy are obvious and serious [9]. When the diagnosis is based largely on an abnormal EEG, no amount of subsequent normal EEGs will ‘cancel’ the previous abnormal one, and the wrong diagnosis is very difficult to undo.

How do you document normal EEG?

Personal information should include patient identification, including the medical record number (or other unique patient identifier) and clinical/hospital EEG record number, in addition to the last name, first name, sex, and date of birth and age at the time of the recording.

What does an abnormal EEG indicate?

An abnormal EEG means that there is a problem in an area of brain activity. This can offer a clue in diagnosing various neurological conditions.

Can anxiety cause abnormal EEG?

Background. Since the 1980s, a high EEG abnormality rate has been reported for patients with panic disorder.

What is normal EEG report?

Most waves of 8 Hz and higher frequencies are normal findings in the EEG of an awake adult. Waves with a frequency of 7 Hz or less often are classified as abnormal in awake adults, although they normally can be seen in children or in adults who are asleep.

Does EEG show brain damage?

An EEG can determine changes in brain activity that might be useful in diagnosing brain disorders, especially epilepsy or another seizure disorder. An EEG might also be helpful for diagnosing or treating the following disorders: Brain tumor. Brain damage from head injury.

What happens if EEG is abnormal?

Abnormal EEG results can show up in two ways. First, normal brain activity may be suddenly interrupted and changed. This happens in epileptic seizures. In partial seizures, only part of the brain shows the sudden interruption.

Is EEG better than MRI?

In general, MRI is good at telling us where the lesion is, whereas EEG is good at separating normal and abnormal primarily cortical function. The topologic usefulness of EEG is limited, although it may be improved with computerization.

Can a EEG detect brain damage?

Can EEG show bipolar?

EEG is therefore a useful tool in clinical examination and may, for example, help to distinguish between «bipolar disorder» and «organic disorder with bipolar symptoms» (19).

Can a normal EEG show an abnormal brain wave?

The whole brain shows it in generalized seizures. The other way an EEG can show abnormal results is called non-epileptiform changes. This can be a general change in the way a normal brain wave looks. It may have an abnormal frequency, height or shape. It can also be a brain wave showing up that should not.

How to read and interpret and EEG and its report?

Enough of the technical, can we please learn how to read the EEG! • Break it down into steps:Break it down into steps: 1.BackdAiikground Activity – giillves you an overall sense of what is going on with the patient. 2. Symmetry – is there any focal changes seen.

What are the results of a 21 channel EEG?

Routine 21-channel digital EEG was obtained to rule out any seizure activity or focal abnormalities. FINDINGS: Background rhythm during awake stage shows poorly organized, low voltage fast beta activity in the anterior regions.

What does 24 hour ambulatory EEG monitoring mean?

This would signify some underlying frontal dysfunction of a nonspecific etiology. Clinical correlation is suggested as to the etiology of this. If indicated, repeat EEG and/or 24-hour ambulatory EEG monitoring might be useful in the future.