Seizure Disorders

What is Seizure Disorders?

Seizure disorders are conditions that cause recurring seizures due to abnormal electrical activity in the brain. A seizure happens when nerve cells in the brain send out sudden, intense bursts of electrical signals. This disrupts normal brain function and can cause changes in behavior, movements, feelings, or levels of consciousness.

Epilepsy is the most common type of seizure disorder. It is diagnosed when someone has two or more unprovoked seizures that happen more than 24 hours apart. Not all seizures mean a person has epilepsy. Some seizures happen once due to fever, low blood sugar, or head injury. Seizure disorders affect about 3.4 million people in the United States, including both children and adults.

Seizures vary widely in how they look and feel. Some cause violent shaking and loss of consciousness. Others cause brief staring spells or unusual sensations. The type of seizure depends on where in the brain the abnormal electrical activity starts and how it spreads. Understanding your seizure type helps doctors create the right treatment plan.

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Symptoms

Temporary confusion or difficulty speaking
Staring spells without response to surroundings
Uncontrollable jerking movements of arms and legs
Loss of consciousness or awareness
Sudden stiffening of the body
Unusual sensations like tingling or strange tastes
Repetitive movements like lip smacking or hand rubbing
Sudden falls without apparent cause
Temporary loss of bladder or bowel control
Brief periods of rapid eye blinking

Some people experience warning signs called auras before a seizure starts. These can include strange smells, visual changes, or feelings of fear. After a seizure, many people feel tired, confused, or have a headache. Some seizures are so brief that people around may not even notice them happening.

Causes and risk factors

Seizure disorders can have many causes, but in about half of all cases, the exact cause remains unknown. Brain injuries from accidents, strokes, or infections can damage brain tissue and lead to seizures. Genetic factors play a role in some types of epilepsy, meaning they run in families. Brain tumors, abnormal blood vessels in the brain, and developmental disorders can also trigger seizure activity. Infections like meningitis or encephalitis can cause both temporary and lasting seizure problems.

Risk factors include a family history of epilepsy, head injuries, brain infections, and stroke. Certain medications can lower the seizure threshold, making seizures more likely to occur. Tramadol is one medication that can increase seizure risk, especially at high doses or in people with existing seizure disorders. Other factors like lack of sleep, alcohol use, stress, and flashing lights can trigger seizures in people who are susceptible. Babies born with brain abnormalities or who experienced oxygen deprivation during birth have higher seizure disorder risk.

How it's diagnosed

Seizure disorders are diagnosed through a detailed medical history, physical exam, and specialized tests. Your doctor will ask about what happens during your seizures, how often they occur, and what might trigger them. A neurological exam checks your brain function, reflexes, and coordination. An electroencephalogram or EEG measures electrical activity in your brain and can identify abnormal patterns between seizures or during them.

Brain imaging tests like MRI or CT scans look for structural problems that might cause seizures. Blood tests check for infections, genetic conditions, blood sugar problems, and electrolyte imbalances. If you take certain medications like tramadol, your doctor may review them to see if they could be contributing to seizure risk. Talk to our doctor about testing options and monitoring that fit your specific situation. Getting the right diagnosis helps you and your care team create an effective treatment plan.

Treatment options

Anti-seizure medications to prevent or reduce seizure frequency
Ketogenic diet, a high-fat, low-carbohydrate eating plan that helps some people
Vagus nerve stimulation, a device implanted to send electrical signals to the brain
Surgery to remove the brain area causing seizures when medication does not work
Responsive neurostimulation, a device that detects and stops seizures as they start
Stress management through meditation, yoga, or therapy
Regular sleep schedule, as lack of sleep can trigger seizures
Avoiding known triggers like alcohol, flashing lights, or specific medications
Wearing medical alert jewelry to inform others about your condition
Regular follow-up appointments to monitor medication levels and adjust treatment

Frequently asked questions

A seizure is a single episode of abnormal electrical activity in the brain. Epilepsy is a seizure disorder diagnosed when someone has two or more unprovoked seizures more than 24 hours apart. Anyone can have a one-time seizure due to fever, injury, or low blood sugar without having epilepsy. The diagnosis of epilepsy means seizures are likely to happen again without treatment.

Yes, certain medications can lower the seizure threshold and trigger seizures in people without epilepsy. Tramadol is one medication known to increase seizure risk, especially at high doses or when combined with other drugs. Antidepressants, antibiotics, and stimulants can also affect seizure risk. Always tell your doctor about all medications and supplements you take to help prevent medication-related seizures.

Most seizures stop on their own within one to three minutes and are not immediately life-threatening. However, injuries can occur from falls or hitting objects during a seizure. Status epilepticus is a seizure lasting more than five minutes or repeated seizures without recovery between them. This is a medical emergency requiring immediate treatment. SUDEP, or sudden unexpected death in epilepsy, is rare but can occur in people with poorly controlled seizures.

Stay calm and keep the person safe from injury by moving hard or sharp objects away. Turn them on their side to keep the airway clear and prevent choking. Do not put anything in their mouth or try to hold them down. Time the seizure and call 911 if it lasts longer than five minutes, if another seizure starts immediately after, or if the person is injured, pregnant, or has diabetes.

Yes, both stress and sleep deprivation are common seizure triggers for many people with seizure disorders. Stress causes chemical changes in the brain that can lower the seizure threshold. Missing even one night of good sleep can trigger seizures in susceptible individuals. Managing stress through relaxation techniques and maintaining a regular sleep schedule are important parts of seizure prevention.

Not everyone needs lifelong treatment. Some people become seizure-free with medication and may be able to stop after several years without seizures under doctor supervision. Others may need ongoing medication to control their seizures. The decision depends on your seizure type, how well medications work, EEG results, and other factors. Never stop seizure medication without consulting your doctor, as stopping suddenly can cause severe seizures.

Driving laws for people with seizure disorders vary by state. Most states require a seizure-free period ranging from three months to one year before you can drive. Some states require doctor notification or medical review board approval. These laws exist to keep you and others safe on the road. Check your state's specific requirements and work with your doctor to determine when driving is safe for you.

Yes, the ketogenic diet has been shown to reduce seizures in some people, especially children whose seizures do not respond to medication. This high-fat, low-carbohydrate diet changes how the brain uses energy. The modified Atkins diet and low glycemic index diet are other options that may help. These diets require medical supervision and careful planning. Regular healthy eating, avoiding skipped meals, and limiting alcohol can also help prevent seizures.

Some types of epilepsy have a genetic component, but most children of parents with seizure disorders do not develop them. If epilepsy runs in your family, the risk is slightly higher but still relatively low. Genetic testing can identify specific gene mutations in some cases. If you have a seizure disorder and are planning to have children, genetic counseling can help you understand your specific risks and options.

Some people with seizure disorders can become seizure-free with treatment, but this is not the same as a cure. About 70% of people with epilepsy can control their seizures with medication. Some children with certain epilepsy types may outgrow them. Surgery can cure some people whose seizures come from one specific brain area that can be safely removed. Even without a cure, most people with seizure disorders can manage their condition and live full, active lives.