Quick Answer: What Are The Possible Causes For An Abnormal EEG?

Can an abnormal EEG mean nothing?

An abnormal EEG doesn’t automatically mean that you, for example, have epilepsy.

The EEGs of babies and young children can often record irregular patterns that don’t mean anything, or the irregularities may flag previously diagnosed neurological conditions such as cerebral palsy..

What does abnormal brain activity mean?

Abnormal electrical activity in the brain can cause seizures. When a person has repeated seizures, this condition is called epilepsy. Diagnosis and treatment of these disorders often requires consultation with a neurologist.

What is EEG test used to diagnose?

EEG results show changes in brain activity that may be useful in diagnosing brain conditions, especially epilepsy and other seizure disorders. An electroencephalogram (EEG) is a test that detects electrical activity in your brain using small, metal discs (electrodes) attached to your scalp.

What causes slow brain activity?

Slowing may be intermittent or persistent, with more persistent or consistently slower activity generally indicating more severe underlying focal cerebral dysfunction. … Focal brain lesions of a variety of causes to cortex, underlying white matter, or both may induce focal slowing.

How do you know something is wrong with your brain?

Your doctor will likely perform a neurological exam to check your vision, hearing, and balance. Your doctor may also get images of your brain to help them make a diagnosis. The most common diagnostic imaging tools are CT, MRI, and PET scans. Your doctor might also need to study fluid from your brain and spinal cord.

What are the first signs of a seizure?

General symptoms or warning signs of a seizure can include:Staring.Jerking movements of the arms and legs.Stiffening of the body.Loss of consciousness.Breathing problems or stopping breathing.Loss of bowel or bladder control.Falling suddenly for no apparent reason, especially when associated with loss of consciousness.More items…

What is a Jacksonian seizure?

A Jacksonian seizure is a type of focal partial seizure, also known as a simple partial seizure. This means the seizure is caused by unusual electrical activity that affects only a small area of the brain. The person maintains awareness during the seizure. Jacksonian seizures are also known as a Jacksonian march.

What triggers a seizure?

Triggers are situations that can bring on a seizure in some people with epilepsy. Some people’s seizures are brought on by certain situations. Triggers can differ from person to person, but common triggers include tiredness and lack of sleep, stress, alcohol, and not taking medication.

What happens if EEG is abnormal?

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. Read 10 Conditions Diagnosed With an EEG to learn more. EEG testing is one part of making a diagnosis.

What problems can an EEG detect?

An electroencephalogram (EEG) is a noninvasive test that records electrical patterns in your brain. The test is used to help diagnose conditions such as seizures, epilepsy, head injuries, dizziness, headaches, brain tumors and sleeping problems. It can also be used to confirm brain death.

What are the 3 types of seizures?

These words are used to describe generalized seizures:Tonic: Muscles in the body become stiff.Atonic: Muscles in the body relax.Myoclonic: Short jerking in parts of the body.Clonic: Periods of shaking or jerking parts on the body.

Can an EEG detect mental illness?

Electroencephalography, or EEG, technology that measures brain function could encourage earlier diagnoses of common mental and neurological disorders, including autism, ADHD and dementia, according to findings published in The Neurodiagnostic Journal.

What are the 3 main phases of a seizure?

Seizures take on many different forms and have a beginning (prodrome and aura), middle (ictal) and end (post-ictal) stage.

Can a EEG show past seizures?

The EEG generally records brain waves between seizures, called interictal brain waves. These waves may or may not show evidence of seizure activity.

Why would a neurologist order an EEG?

The EEG may also be used to determine the overall electrical activity of the brain (for example, to evaluate trauma, drug intoxication, or extent of brain damage in comatose patients). The EEG may also be used to monitor blood flow in the brain during surgical procedures.