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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,...

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:

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 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...

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.

Antiepileptic Drugs: Sodium Channel Blockers

Antiepileptic Drugs: Sodium Channel Blockers

Antiepileptic drugs are specialized medications that prevent seizures in individuals diagnosed with epilepsy. These drugs primarily function by blocking the movement of sodium ions through channels in the neuronal membrane, inhibiting the repetitive firing of action potentials often associated with seizures.
Sodium channel blockers modulate ion channels, particularly voltage-gated sodium channels. They block only sodium ion movement.
Among the most commonly prescribed antiepileptic drugs are...

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Continuous Video Electroencephalogram during Hypoxia-Ischemia in Neonatal Mice

Continuous Video Electroencephalogram during Hypoxia-Ischemia in Neonatal Mice

Published on: June 11, 2020

Approach to neonatal seizures.

Lalitha Sivaswamy¹

¹Department of Neurology, Children’s Hospital of Michigan, 3901 Beaubien, Detroit, MI 48201, USA. lsivaswamy@med.wayne.edu

Clinical Pediatrics

|September 23, 2011

Summary

Recognizing neonatal seizures is challenging due to varied presentations, potentially delaying diagnosis and treatment. This review covers seizure types, causes, and management, emphasizing treatable conditions and those with severe neurological outcomes.

Area of Science:

Neurology
Neonatal Medicine
Pediatrics

Background:

Neonatal seizures present with diverse clinical manifestations, complicating early recognition and timely intervention.
Delayed diagnosis and treatment of neonatal seizures can lead to adverse neurological outcomes.
Understanding the varied presentations is crucial for effective management.

Purpose of the Study:

To provide a comprehensive overview of neonatal seizure recognition, etiology, and management.
To highlight treatable conditions and those requiring specific diagnostic approaches.
To guide pediatricians in discussing prognoses with parents.

Main Methods:

Review of seizure morphology and common etiological factors in newborns.
Emphasis on vitamin-responsive disorders and benign seizure types.

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Last Updated: May 29, 2026

Continuous Video Electroencephalogram during Hypoxia-Ischemia in Neonatal Mice

Continuous Video Electroencephalogram during Hypoxia-Ischemia in Neonatal Mice

Published on: June 11, 2020

Preterm EEG: A Multimodal Neurophysiological Protocol

Preterm EEG: A Multimodal Neurophysiological Protocol

Published on: February 18, 2012

Recording EEG in Freely Moving Neonatal Rats Using a Novel Method

Recording EEG in Freely Moving Neonatal Rats Using a Novel Method

Published on: May 29, 2017

Discussion of conditions with potential for severe neurological sequelae.

Outline of diagnostic workup, including imaging, laboratory tests, and electroencephalogram (EEG) interpretation.

Overview of current and emerging antiepileptic treatments.

Main Results:

Neonatal seizures require careful clinical observation due to non-specific signs.
A range of etiological factors contribute to neonatal seizures, from metabolic to genetic.
Prompt diagnosis and targeted treatment, especially for identifiable causes like vitamin deficiencies, are critical.
EEG plays a vital role in confirming seizure activity and guiding treatment.
Various antiepileptic drugs are available, with ongoing research into novel therapies.

Conclusions:

Accurate and timely diagnosis of neonatal seizures is essential for optimal outcomes.
A systematic approach to evaluation, including EEG and targeted investigations, is necessary.
Management strategies should be tailored to the underlying etiology, differentiating between benign and severe conditions.
Pediatricians must be equipped to provide accurate information regarding prognosis to families.