Epilepsy is classified as one of the most widespread chronic and debilitating neurological disorders in the world, affecting the lives of approximately 70 million people globally, equivalent to 1% to 2% of the planet's population. Its impact is not limited to physical seizures; it extends to pose a serious health and economic threat to both individuals and societies.
First: Etiology
The causes of epilepsy vary, ranging from structural abnormalities and genetic mutations to acute brain injuries (such as strokes or tumors), autoimmune diseases, and central nervous system infections. However, medicine still faces a significant challenge in determining the precise origin of the disease in approximately half of patients. At the molecular and cellular level, the mechanistic explanations of epilepsy can be summarized as follows: Neurological hyperexcitability: an imbalance between excitatory and inhibitory neurotransmitters.
- Ion channel disorders: Impaired flow of ions across the neuronal cell membrane.
- Brain microenvironment: Includes neuroinflammation, gliosis, and damage to the blood-brain barrier.
- Structural disorders: Oxidative stress, neurogenesis, and abnormal neural circuit formation.
First: Etiology
The causes of epilepsy vary, ranging from structural abnormalities and genetic mutations to acute brain injuries (such as strokes or tumors), autoimmune diseases, and central nervous system infections. However, medicine still faces a significant challenge in determining the precise origin of the disease in approximately half of patients. At the molecular and cellular level, the mechanistic explanations of epilepsy can be summarized as follows: Neurological hyperexcitability: an imbalance between excitatory and inhibitory neurotransmitters.
- Ion channel disorders: Impaired flow of ions across the neuronal cell membrane.
- Brain microenvironment: Includes neuroinflammation, gliosis, and damage to the blood-brain barrier.
- Structural disorders: Oxidative stress, neurogenesis, and abnormal neural circuit formation.
Second: Clinical Characteristics and Modern Classification
Epilepsy is characterized by excessive and simultaneous neuronal discharges from a large number of brain cells. Clinically, it manifests as behavioral changes (seizures) and abnormalities in the
Second: Clinical Characteristics and Modern Classification
Epilepsy is characterized by excessive and simultaneous neuronal discharges from a large number of brain cells. Clinically, it manifests as behavioral changes (seizures) and abnormalities in the electroencephalogram (EEG). Seizure manifestations vary and may include convulsions, loss of consciousness, myoclonus, or myasthenia.
According to the 2017 International League Against Epilepsy (ILA) classification, epilepsy is divided into four main categories:
Generalized epilepsy: Involving both hemispheres of the brain.
Focal epilepsy: Begins in a specific area. Mixed epilepsy (generalized and focal). Idiopathic epilepsy (of unknown type). The disease is not limited to seizures; it is often accompanied by psychological and neurological conditions such as anxiety, depression, cognitive decline, and autism spectrum disorders.
According to the 2017 International electroencephalogram (EEG). Seizure manifestations vary and may include convulsions, loss of consciousness, myoclonus, or myasthenia. League Against Epilepsy (ILA) classification, epilepsy is divided into four main categories: Generalized epilepsy: Involving both hemispheres of the brain. Focal epilepsy: Begins in a specific area. Mixed epilepsy (generalized and focal). Idiopathic epilepsy (of unknown type). The disease is not limited to seizures; it is often accompanied by psychological and neurological conditions such as anxiety, depression, cognitive decline, and autism spectrum disorders.
Third: Therapeutic Approaches and Existing Clinical Limitations
There are numerous strategies for controlling epileptic seizures, but each treatment approach faces a number of challenges that limit its full effectiveness. Drug therapy remains the cornerstone and first line of clinical management of the disease, with more than 30 types of antiepileptic drugs being licensed. However, medical statistics indicate that approximately 30% of those affected suffer from "drug-resistant epilepsy," where their bodies do not respond adequately to these medications. Furthermore, these drugs often act as symptomatic relief by suppressing seizures, without being able to modify the biological processes of the disease or cure it at its root. Moreover, long-term use can lead to serious complications, including liver and kidney toxicity, and disturbances in cognitive and psychological functions.
Third: Therapeutic Approaches and Existing Clinical Limitations
There are numerous strategies for controlling epileptic seizures, but each treatment approach faces a number of challenges that limit its full effectiveness. Drug therapy remains the cornerstone and first line of clinical management of the disease, with more than 30 types of antiepileptic drugs being licensed. However, medical statistics indicate that approximately 30% of those affected suffer from "drug-resistant epilepsy," where their bodies do not respond adequately to these medications. Furthermore, these drugs often act as symptomatic relief by suppressing seizures, without being able to modify the biological processes of the disease or cure it at its root. Moreover, long-term use can lead to serious complications, including liver and kidney toxicity, and disturbances in cognitive and psychological functions.
In a related context, the ketogenic diet (high in fat and low in carbohydrates) has emerged as an effective alternative used for decades, particularly in cases of intractable childhood epilepsy. However, recent research has begun to raise concerns about its potential long-term side effects, such as negative impacts on cardiovascular health and the possibility of cognitive decline. On the other hand, surgical intervention stands out as a radical option aimed at removing the brain region responsible for initiating epileptic seizures (the epileptic focus). This approach can achieve remarkable results in permanently stopping seizures, but it remains fraught with surgical risks and potential post-operative complications, making it a limited option reserved for very specific cases and subject to careful evaluation.
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