The first step in managing epilepsy is the accurate identification of epilepsy symptoms. These symptoms are not limited to visible convulsions, but rather include a wide spectrum of changes in sensation, awareness, and behavior, depending on the location of the seizure in the brain.
1. Classification of Epilepsy Symptoms (Classification)
Seizure symptoms are mainly divided into two primary categories:
A. Focal Seizures (Focal Seizures):
These seizures originate in a specific neural network or a single area of the brain. Epilepsy symptoms here vary depending on whether the person remains aware during the seizure or not.
Focal Aware Seizures (Simple Partial Seizures):
Awareness remains intact: the person is conscious and remembers what happened.
Motor symptoms: repetitive jerking or twitching movements in one part of the body (such as the hand or one side of the face).
Sensory symptoms: tingling, numbness, or sensing smells or tastes that do not exist (sensory aura). These auras are considered an early warning sign of a seizure for some individuals.
Psychological or emotional symptoms: sudden intense fear or a strange feeling that the situation has happened before (Deja Vu).
Focal Impaired Awareness Seizures (Complex Partial Seizures):
Awareness is affected: partial or complete loss of awareness occurs, and the person may appear to be in a temporary state of absence.
Automatisms: repetitive involuntary movements that the person does not remember later, such as:
chewing or lip smacking.
rubbing or scratching the hands.
making sounds or uttering unintelligible words.
A focal aware seizure (aura) may begin and then evolve into an impaired awareness seizure as the electrical activity spreads from the original focus.
B. Generalized Seizures (Generalized Seizures):
These seizures affect both hemispheres of the brain from the start and always result in loss of consciousness. The most prominent generalized epilepsy symptoms include:
Tonic-Clonic Seizures (Tonic-Clonic Seizures): previously known as “grand mal” seizures.
Loss of consciousness: occurs suddenly and may be accompanied by falling.
Tonic phase (Tonic): sudden stiffening of all body muscles (usually lasting a few seconds).
Clonic phase (Clonic): rhythmic, repetitive jerking movements of the limbs.
Postictal Period: a phase of severe fatigue, confusion, and muscle pain following the seizure, which may last for several hours.
Absence Seizures (Absence Seizures):
These epilepsy symptoms are common among school-aged children.
A sudden and brief توقف in activity (such as staring into space), usually lasting less than 15 seconds, and may occur dozens of times per day.
The child usually does not fall and immediately resumes activity without remembering what happened.
Tonic Seizures (Tonic Seizures):
Muscle stiffening only, often causing sudden falls. These seizures are usually shorter than the tonic phase of tonic-clonic seizures.
Atonic Seizures (Atonic Seizures):
Sudden loss of muscle tone (Tone), leading to dropping of the head or complete body collapse (sometimes referred to as “drop attacks”). This type carries a high risk of head injury.
2. Differential Diagnosis of Epilepsy Symptoms
It is important to distinguish true epilepsy symptoms from non-epileptic seizures (Non-Epileptic Seizures), which may be psychological in origin or caused by other medical conditions such as:
Syncope (Syncope):
Occurs due to a sudden drop in blood pressure rather than abnormal electrical activity in the brain. Consciousness is usually regained quickly after lying down.
Hypoglycemic Episodes (Hypoglycemia):
Especially in patients with diabetes, where low blood sugar can lead to confusion and convulsions, and can be treated immediately by administering glucose.
Migraine with Aura (Migraine with Aura):
May cause temporary sensory or visual symptoms that resemble focal seizures, but typically develop gradually.
Conclusion
Understanding the complex and varied nature of epilepsy symptoms is the cornerstone of accurate diagnosis and the beginning of an effective treatment journey. Whether seizures are subtle and focal or clearly generalized, recognizing the characteristic signs of each type allows for determining the most appropriate treatment pathway, which may include anti-seizure medications or other interventions. Early and accurate intervention based on observed epilepsy symptoms significantly contributes to improving the quality of life of people living with epilepsy.
