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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,...

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...

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:

Increased Body Temperature

Increased Body Temperature

A body temperature above 38°C (100.4 °F) is known as fever or pyrexia, and a person with fever is termed 'febrile.' Typically, the hypothalamus, a part of the brain that acts as the body's thermostat, regulates body temperature through a thermoregulatory setpoint. It receives signals from cold and warm thermal receptors throughout the body and adjusts the body's temperature accordingly. Fever occurs when this hypothalamic setpoint is altered, usually in response to an infection or illness.

Seizures ll: Types

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...

Encephalitis l: Introduction

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...

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Related Experiment Video

Updated: May 14, 2026

A Behavioral Screen for Heat-Induced Seizures in Mouse Models of Epilepsy

A Behavioral Screen for Heat-Induced Seizures in Mouse Models of Epilepsy

Published on: July 12, 2021

Febrile seizures. Update and controversies.

Mohammed M Jan¹, John P Girvin

¹Department of Neurosciences, King Faisal Specialist Hospital & Research Centre, MBC J-76, PO Box 40047, Jeddah 21499, Kingdom of Saudi Arabia. Tel. +966 (2) 6677777 Ext. 5819. Fax. +966 (2) 6677777 Ext. 5813.

Neurosciences (Riyadh, Saudi Arabia)

|February 5, 2013

Summary

This summary is machine-generated.

Febrile seizures are common in young children and usually benign. Recent evidence suggests pediatricians are becoming more selective in investigations, as extensive workups for febrile seizures often yield low results.

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Generation and On-Demand Initiation of Acute Ictal Activity in Rodent and Human Tissue

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Electrophoretic Delivery of γ-aminobutyric Acid (GABA) into Epileptic Focus Prevents Seizures in Mice

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Generation and On-Demand Initiation of Acute Ictal Activity in Rodent and Human Tissue

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Area of Science:

Pediatrics
Neurology

Background:

Febrile seizures are the most common seizure disorder in children under 5.
Most cases are brief, have benign prognoses, and do not require specific treatment.
Physicians often manage parental anxiety and make decisions about investigations and treatment.

Purpose of the Study:

To provide an updated overview of febrile seizures.
To review current diagnostic and therapeutic recommendations.
To address variations in physician evaluation and management.

Main Methods:

Review of recent evidence and diagnostic/therapeutic recommendations for febrile seizures.
Analysis of physician practices regarding investigation and management.
Evaluation of the yield of investigations in altering management.

Main Results:

Despite understanding, physician management of febrile seizures varies.
Pediatricians are increasingly selective in admitting and investigating children with febrile seizures.
Children admitted often present with complex seizures, status epilepticus, or appear ill.

Conclusions:

The yield of investigations for febrile seizures remains low.
Extensive work-ups and prolonged hospitalizations are often not justified.
Selective evaluation and management are becoming more prevalent.