Epilepsy: Symptoms, Causes & Treatment

Epilepsy is a chronic neurological disorder characterized by recurrent and unpredictable seizures caused by abnormal, excessive electrical activity in the brain. These seizures occur when a group of neurons simultaneously and irregularly send electrical signals, disrupting consciousness, movement, and sensation. Seizures can be focal (confined to one brain region) or generalized (affecting both brain hemispheres).

Epilepsy affects approximately 50 million people worldwide and occurs in about 1-2% of the general population. In the Middle East and Jordan, epidemiological studies indicate similar prevalence rates with variations between urban and rural areas. The condition can develop at any age, but is most common in children and elderly individuals. Early diagnosis and appropriate treatment can significantly improve quality of life and reduce seizure-related complications.

It is important to recognize that epilepsy is not a psychiatric or mental disorder, but a genuine medical condition requiring regular medication management and periodic medical supervision. Most individuals with epilepsy can lead normal lives with treatment adherence and medical guidance.

Epilepsy symptoms vary significantly depending on seizure type and the location of abnormal electrical activity in the brain. A patient may experience a warning before seizure onset called an "aura" (strange sensation), or others may have no warning. Some people maintain consciousness during seizures while others lose it completely. Note that symptoms may differ in children, adults, and elderly individuals.

• Loss of Consciousness: In generalized seizures, the person loses complete awareness and cannot recall the event.
• Muscle Convulsions: Involuntary, forceful contractions of muscles throughout the body (especially limbs).
• Continuous Jerking: Rapid, repeated movements of limbs lasting from seconds to minutes.
• Muscle Rigidity: Strong, sustained muscle tension without movement.
• Unusual Behavior: Irrational actions such as sudden anxiety or unexplained intense fear.
• Loss of Bladder/Bowel Control: Incontinence may occur during the seizure.
• Brief Loss of Consciousness (Absence Seizure): Sudden interruption of awareness for seconds without movement.
• Numbness or Tingling: Abnormal sensations starting in one area that may spread.
• Flashing Lights or Strange Shapes: Visual hallucinations that may precede seizure onset.
• Strange Sounds: Ringing or sounds others cannot hear.
• Dizziness or Vertigo: Loss of balance before or during seizure.
• Severe Fatigue After Seizure: Recovery period lasting from minutes to hours.

• Head Injuries: Severe traumatic brain injuries from accidents or falls can cause epilepsy immediately or years after the injury.
• Stroke: Strokes reduce blood and oxygen supply to the brain, potentially causing scarring and electrical abnormalities.
• Congenital Abnormalities: Brain malformations present since birth, such as anencephaly or cortical dysplasia, increase seizure risk.
• Infections and High Fever: Meningitis, encephalitis, and severe fevers especially in early childhood can cause permanent epilepsy.
• Brain Tumors: Abnormal cell growth in the brain can compress healthy tissue and trigger seizures.
• Toxins and Chemicals: Exposure to certain toxins or excessive alcohol consumption may increase epilepsy risk.
• Genetic Factors: Some epilepsy types have a strong genetic component, making families with epilepsy history more susceptible.
• Dementia and Aging: Cognitive decline in elderly individuals may be accompanied by recurrent seizures.

• Age: Young children (especially under 5 years) and elderly people over 65 have higher risk.
• Family History: Having first-degree relatives with epilepsy significantly increases risk.
• Previous Brain Conditions: Prior strokes, tumors, and infections elevate epilepsy likelihood.
• Repeated Head Injuries: Athletes and workers in hazardous occupations face higher risk.
• Heavy Alcohol Use: Excessive alcohol consumption may cause epilepsy or trigger existing seizures.
• Other Neurological Diseases: Multiple sclerosis, Alzheimer's, and ALS increase risk.
• Birth Oxygen Deprivation: Birth asphyxia may cause brain damage and epilepsy.
• Pregnancy and Childbirth: Pregnant women with epilepsy face higher risk of complications.
• Gender (Sex): Males are at higher risk than females in varying proportions.
• Sleep Deprivation and Stress: Lack of sleep and emotional stress may increase seizure frequency.

Epilepsy diagnosis relies on detailed clinical history, physical examination, and confirmatory tests. The physician must inquire about seizure nature, frequency, duration, and associated behaviors. A witness account is often valuable since the patient may not recall seizure details.

• Electroencephalogram (EEG): The gold standard for epilepsy diagnosis. Records brain electrical activity and detects abnormal patterns characteristic of epilepsy. Recording typically lasts 20+ minutes and may occur during sleep or with stimuli like flashing lights.
• Magnetic Resonance Imaging (MRI): Provides detailed brain images to rule out tumors or structural abnormalities causing seizures.
• Computed Tomography (CT): Faster alternative to MRI when urgent assessment is needed to exclude brain bleeding.
• Blood Tests: Check for infection or chemical imbalances triggering seizures (hypoglycemia, hyponatremia, hypocalcemia).
• Video-EEG Monitoring: Extended recording with simultaneous video monitoring of behavior and electrical activity.
• Antiepileptic Drug Levels: Measurement of drug concentration to ensure adequate dosing (therapeutic threshold varies by medication).

Medications

• Levetiracetam (Keppra): Effective with relatively few side effects. Initial dose 500 mg twice daily, may increase to 3000 mg daily. No routine blood monitoring required.
• Valproic Acid (Depakote): Highly effective but with more side effects including weight gain and liver issues. Dose 500-1000 mg daily divided. Requires periodic liver function tests.
• Lamotrigine (Lamictal): Good option especially for women and during pregnancy. Initial dose very low (25 mg) and increased slowly to avoid dangerous rash.
• Carbamazepine (Tegretol): Highly effective for focal seizures. Initial dose 400-600 mg daily. May cause drowsiness and rare severe skin reactions.
• Lacosamide (Vimpat): Modern drug effective for focal seizures. Oral or IV dosing (200-400 mg daily). Relatively few side effects.
• Ethosuximide (Zarontin): Specialized for absence seizures in children. Dose 250-500 mg daily. Very safe with minimal side effects.

Important Note: Approximately 75% of patients achieve seizure control with monotherapy. Others may require polypharmacy. Never abruptly stop medication as this may cause status epilepticus (life-threatening consecutive seizures).

Procedures and Surgery

• Epilepsy Surgery: For drug-resistant patients (20-30% of cases), surgical resection of seizure-causing brain area may be performed. Requires evaluation with PET, SPECT, and EEG monitoring.
• Corpus Callosotomy: Cutting fibers connecting brain hemispheres. Performed in severe cases, especially for atonic seizures.
• Vagus Nerve Stimulation (VNS): Implantable device delivering electrical pulses to the vagus nerve in the neck. Reduces seizure frequency by 20-50% but does not cure epilepsy.
• Deep Brain Stimulation (DBS): Modern technique implanting electrodes in specific brain regions. Used for drug-resistant cases.
• Ketogenic Diet: High-fat, low-carbohydrate diet reducing seizures, especially in children. Requires careful dietary supervision.

Lifestyle Changes and Supportive Measures

• Regular Sleep: Sleep deprivation strongly triggers seizures. Maintain 7-8 hours nightly on consistent schedule.
• Avoid Triggers: Identify personal triggers (bright lights, loud noise, stress) and avoid them when possible.
• Moderate Exercise: Regular physical activity (30 minutes, 5 days/week) but avoid dangerous activities like swimming alone.
• Stress Management: Relaxation and mindfulness techniques may reduce seizure frequency.
• Avoid Alcohol and Drugs: Alcohol and drugs increase seizures and reduce medication effectiveness.
• Medication Adherence: Take medications regularly at the same times daily even if no seizures occur.
• Regular Medical Follow-up: See neurologist every 3-6 months to assess treatment efficacy and side effects.
• Safety Precautions: Wear protective equipment (helmet) during specific activities and avoid driving until seizures are controlled.

• Status Epilepticus: Consecutive seizures without consciousness recovery between them. Life-threatening emergency potentially causing permanent brain damage or death. Requires hospitalization and immediate intravenous medication.
• Head Injuries and Fractures: Falls during seizures may cause bone fractures and head trauma, especially in elderly patients.
• Drowning: High drowning risk during swimming or water exposure due to sudden seizures, even in shallow water.
• Motor Vehicle Accidents: Seizures while driving can cause serious accidents endangering the patient and others.
• Sudden Unexpected Nocturnal Death in Epilepsy (SUDEP): Sudden unexplained deaths in epilepsy patients without obvious cause. Mechanism unclear but may relate to breathing or heart function.
• Injuries During Seizures: Tongue and lip bites, cuts from nearby sharp objects.
• Depression and Anxiety: Very common psychological complications due to fear of seizures and social isolation.
• Pregnancy Complications: Pregnant women with epilepsy face higher risk of miscarriage, premature delivery, and birth defects (related to seizure medications).

• Prevention of Head Injuries: Use safety helmets when cycling, motorcycling, and during sports activities.
• Road Safety: Do not drive until seizures are controlled for a specified period (typically 3-6 months per local regulations).
• Infection Prevention: Obtain vaccinations against infectious diseases like measles and influenza; treat meningitis promptly.
• Blood Pressure and Diabetes Control: Prevent stroke and complications that may lead to epilepsy.
• Avoid Alcohol and Drugs: Substance use increases epilepsy risk or triggers seizures.
• Treatment Adherence for Chronic Conditions: Manage hypertension, obesity, and heart disease to reduce epilepsy risk.
• Swimming Pool Safety: Never swim alone; ensure close supervision of children in water.
• Avoid Known Triggers: Avoid flashing lights and noisy environments if they are personal triggers.
• Education and Awareness: Teach family and colleagues how to manage seizures and provide first aid.
• Regular Medical Monitoring: Periodic consultation with physician to ensure treatment efficacy and prevent complications.