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Epilepsy and Seizures: Overview

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...

Epilepsy ll: Types

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

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 l: Introduction

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,...

Drug Dosing: Geriatric Patients

Drug Dosing: Geriatric Patients

Elderly individuals encompass a diverse population with varying degrees of age-related physiological changes. Defining the elderly presents challenges, as the geriatric population is often arbitrarily categorized as individuals older than 65. However, many individuals in this group lead active and healthy lives, with an increasing number surpassing 85 years and falling into the older elderly category. Physiological changes associated with aging impact performance capacity and homeostatic...

Antiepileptic Drugs: Potassium Channel Activators

Antiepileptic Drugs: Potassium Channel Activators

Ezocgabine or retigabine, an antiepileptic drug of remarkable efficacy, has revolutionized the management of seizures. It is a potassium channel activator, explicitly targeting the family of Q subtype potassium channels. It enhances the transmembrane potassium currents, regulating neuronal excitability. This action stabilizes the resting membrane potential, a pivotal factor in mitigating the hyperexcitability that characterizes epilepsy.
Ezogabine has gained approval as an adjunctive treatment...

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Related Experiment Video

Updated: Jul 1, 2026

Electromagnetic Source Imaging in Presurgical Evaluation of Children with Drug-Resistant Epilepsy

Electromagnetic Source Imaging in Presurgical Evaluation of Children with Drug-Resistant Epilepsy

Published on: September 20, 2024

Epilepsy in the elderly.

Gina Mapes Jetter¹, Jose E Cavazos

¹Department of Neurology, University of Texas Health Science Center at San Antonio, San Antonio, Texas, USA.

Seminars in Neurology

|September 9, 2008

Summary

This summary is machine-generated.

Elderly epilepsy patients experience the highest seizure incidence, often presenting with complex partial seizures and atypical symptoms. Therapeutic challenges arise from altered pharmacokinetics and drug interactions in this population.

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Area of Science:

Neurology
Geriatrics
Epileptology

Background:

The incidence of epilepsy and seizures increases with age, making the elderly population the most affected group.
Epilepsy in older adults presents unique etiological factors, including cerebrovascular disease, dementia, head injuries, and metabolic disorders, differing from younger populations.
Elderly patients frequently experience complex partial seizures with a higher recurrence rate.

Purpose of the Study:

To highlight the unique characteristics of epilepsy in the elderly population.
To discuss the diagnostic challenges posed by atypical seizure presentations and prolonged postictal symptoms in older adults.
To address the therapeutic complexities associated with antiepileptic drug (AED) selection and management in elderly patients.

Main Methods:

Review of existing literature on elderly epilepsy.
Analysis of seizure characteristics and etiologies specific to the geriatric population.
Examination of pharmacokinetic and pharmacodynamic considerations for AEDs in older adults.

Main Results:

Elderly individuals have the highest incidence of seizures, with a rising trend.
Common etiologies include cerebrovascular disease, dementia, and head injuries.
Complex partial seizures are prevalent, often exhibiting atypical symptoms and prolonged postictal phases, complicating diagnosis.

Conclusions:

Epilepsy in the elderly is characterized by distinct etiologies, seizure types, and diagnostic difficulties.
Age-related pharmacokinetic changes and potential drug-drug interactions necessitate careful AED selection and management.
Further research is needed to optimize epilepsy treatment strategies for the aging population.