Related Experiment Video
Updated: May 19, 2026

09:57
Electromagnetic Source Imaging in Presurgical Evaluation of Children with Drug-Resistant Epilepsy
Published on: September 20, 2024
Epileptic encephalopathies (including severe epilepsy syndromes)
1Department of Neurology, Childrens Hospital Agia Sophia, Athens, Greece. acovanis@otenet.gr
Epilepsia
|September 6, 2012
Summary
Epileptic encephalopathies are severe early-onset epilepsy disorders causing cognitive decline. Early diagnosis and effective treatment are crucial, as current drugs are often ineffective, necessitating new therapeutic approaches.
Area of Science:
- Neurology
- Pediatric Neurology
- Epileptology
Background:
- Epileptic encephalopathies are severe early-onset epilepsy syndromes.
- Characterized by drug-resistant seizures, EEG abnormalities, and cognitive decline.
- Seizures and EEG discharges are age-specific and drive cognitive deterioration.
Purpose of the Study:
- To review common epileptic encephalopathies.
- To analyze key clinical issues in managing these disorders.
- To highlight the need for novel treatments.
Main Methods:
- Review of existing literature on epileptic encephalopathies.
- Analysis of clinical presentations and etiologies.
- Discussion of diagnostic and therapeutic challenges.
Main Results:
- Epileptic encephalopathies present with pharmacoresistant seizures and cognitive impairment.
- Causes include structural, congenital, acquired, and metabolic factors.
- Immune-mediated mechanisms may play a role in some cases.
Conclusions:
- Early diagnosis and effective treatment improve cognitive outcomes.
- Current antiepileptic drugs show limited efficacy.
- Urgent need for new therapeutic strategies and clinical trials.
Related Concept Videos
Epilepsy ll: Types
Recurrent seizures, stemming from abnormal electrical activity in the brain, are the defining characteristic of epilepsy, a chronic neurological condition. Because seizure features vary greatly, epilepsy is classified using two systems: by seizure type and by epilepsy syndromes. These classifications enable clinicians to describe seizure patterns and select suitable treatment strategies.I. Classification by Seizure Type1. Focal EpilepsyFocal epilepsy begins in one hemisphere of the brain.
Seizures: Classification
Epilepsy is primarily characterized by unpredictable seizures, either provoked by an identifiable factor, such as injury or illness, or unprovoked, occurring spontaneously without apparent cause.
Seizures are typically classified into two main categories: focal and generalized seizures.
Focal Seizures
Focal seizures originate from specific regions of the brain. These seizures are further sub-classified into two types:
Seizures are typically classified into two main categories: focal and generalized seizures.
Focal Seizures
Focal seizures originate from specific regions of the brain. These seizures are further sub-classified into two types:
Epilepsy and Seizures: Overview
Epilepsy is a chronic neurological disease marked by recurrent, unpredictable seizures. These seizures are caused by abnormal electrical discharges in the brain, leading to behavior, sensation, or consciousness alterations. They can also cause transient impairment of awareness, interfering with daily activities.
Various factors can trigger epilepsy, including genetic factors, brain damage, metabolic causes, and unknown etiology. Diagnosis of epilepsy involves electroencephalography (EEG), which...
Various factors can trigger epilepsy, including genetic factors, brain damage, metabolic causes, and unknown etiology. Diagnosis of epilepsy involves electroencephalography (EEG), which...
Seizures l: Introduction
Understanding seizures and epilepsy relies on key definitions that help in recognizing, classifying, and managing these disorders. These definitions provide a framework for recognizing, classifying, and managing seizure disorders.DefinitionsA seizure is a sudden, abnormal burst of electrical activity in the brain that can cause changes in awareness, movement, sensation, or behavior, depending on the area involved. Epilepsy is a chronic condition characterized by recurrent, unprovoked seizures,...
Encephalitis l: Introduction
Encephalitis is inflammation of the brain parenchyma, most often due to infections or autoimmune processes. It presents with neuropsychiatric features such as fever, altered mental status, behavioral changes, cognitive dysfunction, seizures, focal deficits, and sometimes autonomic instability. In some cases, the meninges are also involved, resulting in meningoencephalitis.Infectious CausesInfectious encephalitis is most commonly viral but can also result from bacterial, fungal, or parasitic...
Seizures ll: Types
Seizures are sudden bursts of abnormal electrical discharge in the brain that interfere with normal function. They are commonly divided into three groups: focal seizures, generalized seizures, and other types that do not fit neatly into either category.Focal SeizuresFocal seizures begin in a single brain region. When awareness is preserved, they are called focal aware seizures and may cause sensations such as tingling, unusual smells, or flashing lights. When awareness is impaired, they are...

