Epilepsy

What Is Epilepsy?

Causes 

• Some forms of epilepsy run in families, indicating a genetic predisposition. Researchers have identified certain genes that may contribute to the risk of epilepsy.

• Head trauma resulting from accidents or injuries can lead to epilepsy. The likelihood of developing seizures increases if the injury causes bleeding, scarring, or other damage to the brain.

• A stroke, which occurs when the brain’s blood supply is interrupted, can cause epilepsy, especially in older adults.

• Meningitis, encephalitis, and other infections that affect the brain can lead to epilepsy.

• If a baby sustains brain damage before birth, often due to maternal infection or oxygen deficiency, the risk of epilepsy may increase.

• Conditions such as autism and neurofibromatosis are sometimes associated with an increased risk of epilepsy.

Symptoms 

• Focal seizures originate in one part of the brain and may cause symptoms such as altered sensory perception, jerking movements in one part of the body, or temporary confusion.

• Generalized seizures involve the entire brain and include several subtypes:

• Absence seizures characterized by brief, sudden lapses in attention, often mistaken for daydreaming.

• Tonic-clonic seizures previously known as grand mal seizures, involve a combination of muscle stiffness (tonic phase) and rhythmic jerking (clonic phase).

• Atonic seizures involve a sudden loss of muscle strength, leading to falls.

• Myoclonic seizures: Sudden, brief jerks or twitches, often affecting the arms or legs.

• Aura: Some individuals experience an aura before a seizure, which can serve as a warning. Auras may include strange sensations, emotions, or visual disturbances.

Diagnosis

• Electroencephalogram (EEG) is the most common diagnostic test for epilepsy. It records the electrical activity of the brain and can reveal abnormal patterns indicative of epilepsy.

• Neuroimaging: MRI or CT scans may be used to detect structural abnormalities in the brain that could be causing seizures, such as tumors, cysts, or scars.

• Blood tests may be conducted to check for infections, genetic conditions, or other factors that could be contributing to seizures.

• Video-EEG Monitoring: In some cases, especially when epilepsy is difficult to diagnose, video-EEG monitoring is used to record seizures and correlate them with EEG findings.

Treatment Options

• Anti-epileptic drugs (AEDs) are the first line of treatment for most people with epilepsy. These medications help control seizures by stabilizing the electrical activity in the brain. However, finding the right medication and dosage can be a trial-and-error process, and some individuals may experience side effects.

• For some individuals, surgery may be an option, especially if seizures originate from a specific area of the brain that can be safely removed or altered.

• A ketogenic diet with high-fat, low-carbohydrates has been shown to reduce seizures in some people, particularly children with certain types of epilepsy.

• Vagus Nerve Stimulation (VNS) involves implanting a device that sends electrical impulses to the vagus nerve in the neck, which can help reduce the frequency and intensity of seizures.

• Responsive Neurostimulation (RNS) is a device implanted in the brain that detects abnormal electrical activity and responds with stimulation to prevent seizures.

Living with Epilepsy

The Importance of Awareness