Epilepsy is a common neurological disorder caused by unusual nerve cell activity in the brain. Normal brain activity involves flow of electrical energy. When the energy flows in a controlled manner, you function well. When the brain cells malfunction and keep firing electrical signals, you experience an epileptic seizure. The energy surging through your brain causes the seizure. The electrical disturbance always begins in the brain, but may affect any part of your body.
MedStar Health epilepsy specialists have made it their life's work to study epilepsy and find innovative solutions and treatments. You are in excellent hands at MedStar St. Mary's Hospital, and we will work with you to find the right combination of treatments that work for you.
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Minor symptoms may include:
- Clouded awareness
- Difficulty communicating
Symptoms that are more extensive may involve:
- Loss of consciousness
- Uncontrolled muscle movements
The severity of your symptoms depends on several factors, including where the disturbance is occurring in your brain and how long your seizure lasts. While most seizures last only a minute or two, you may experience lingering confusion afterwards.
In order for you to be diagnosed with epilepsy, you must have had at least two unprovoked seizures.
The beginning stages of epilepsy diagnosis are very important. This is because treatment will largely depend on several factors, mainly:
- Where in the brain your seizure originated?
- What type of seizure you have had
Epileptic seizures can be mild to life threatening depending on their duration and when they occur. If your seizures are epileptic, they fall into two main categories, each with several specific types:
- Generalized seizures involve the entire brain. Because of the extensive area affected, symptoms always include loss of consciousness.
- Absence seizures (formerly referred to as petit mal seizures) cause a brief (10-20 second) loss of consciousness and staring. Symptoms are so fleeting that they may go unnoticed for some time. This type of generalized seizure is more likely to affect children.
- Myoclonic seizures cause you to lose consciousness and experience rapid, brief muscle contractions. The affected muscles will usually contract on both sides of the body at the same time. To a bystander, it may look like sudden jerks or clumsiness.
- Atonic seizures can be particularly dangerous. Along with loss of consciousness, abrupt, sudden muscle weakness occurs without any warning. This can cause you to fall down suddenly, sometimes resulting in head or face injuries.
- Tonic-clonic seizures (formerly referred to as grand mal seizures) can cause you to cry out or fall as your seizure begins. You will lose consciousness for one to two minutes, and begin to experience stiffening of the limbs (the tonic phase), followed by jerking of the limbs and face (the clonic phase). Afterwards, you will have a recovery period. Do not be surprised if you experience amnesia regarding seizure events, confusion, and deep sleep.
- Partial seizures originate in a single area of the brain. Depending on the affected area, partial seizures can affect different physical, emotional, or sensory functions. While partial seizures can vary in their symptoms, they all tend to be brief, lasting at most a minute or two.
- Simple partial seizure does not involve loss of consciousness. You may experience sudden jerking, unusual sensations or movements.
- Complex partial seizures involve impaired consciousness or total loss of consciousness. You may experience an aura, have a period of staring (30-60 seconds), and be generally unaware of your environment. After the seizure is over, you may be somewhat confused and sleepy.
- Secondarily generalized tonic-clonic seizures: Occasionally, a partial seizure may lead to a generalized, full-blown tonic-clonic seizure. When this occurs, the resulting seizure is called a secondarily generalized tonic-clonic seizure. The symptoms are the same as if the tonic-clonic seizure occurred spontaneously.
Non-Epileptic Seizures (NES)
Not all seizures are caused by epilepsy. These are known as non-epileptic seizures, or NES, and they are not caused by electrical discharges and do not show on an electroencephalogram (EEG). Non-epileptic seizures are very common. They are found in about 40 percent of the patients. They can affect adults, teens and children, but occur more often in females and people in their thirties and forties.
Some NES can be caused by migraine headaches, drops in blood pressure, movement disorders, or other medical problems. The most common type of NES is the psychogenic seizure, which can be caused by mental or emotional stress or past trauma. This trauma can rest underneath the surface of a person's day to day life and come out in the form of these seizures—to stop the seizures, they must address the trauma.
An effective treatment for past trauma and stress is counseling and may include:
- Stress reduction
- Behavioral therapy
With proper treatment, seizures disappear in about 70 percent of adults. Children and adolescents have even higher rates of improvement after treatment.