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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 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 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:

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...

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.

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Does Saint Nicholas provoke seizures? Hints from Google Trends.

Jolien S van Campen¹, Eric van Diessen², Willem M Otte³

¹Department of Pediatric Neurology, Brain Center Rudolf Magnus, University Medical Center Utrecht, The Netherlands; Department of Translational Neuroscience, Brain Center Rudolf Magnus, University Medical Center Utrecht, The Netherlands.

Epilepsy & Behavior : E&B

|February 20, 2014

Summary

Stress may increase seizure frequency in children with epilepsy. Internet searches for epilepsy rose 14% during the Dutch Saint Nicholas holiday, suggesting a link between stress and seizures.

Keywords:

Epilepsy Holidays Internet Search queries Seizures Stress

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Area of Science:

Neurology
Public Health
Digital Epidemiology

Background:

Stress is a commonly reported trigger for seizures in individuals with epilepsy.
Existing evidence primarily relies on self-reports, necessitating objective measures to confirm the stress-epilepsy relationship.
A Dutch national holiday, Saint Nicholas' Eve, is frequently cited as a stressor that increases seizure frequency in children.

Purpose of the Study:

To investigate the association between stress and epilepsy by analyzing online information-seeking behavior.
To use internet search data as an indirect indicator of seizure occurrence around a specific cultural event.

Main Methods:

Utilized Google Trends data to track relative search volumes for 'epilepsy' in the Netherlands, United States, and United Kingdom from 2004 to 2013.
Compared search percentages during the Saint Nicholas period (early December) with baseline periods.
Analyzed search data specifically within the Netherlands, where the holiday is prominent.

Main Results:

A statistically significant 14% increase in epilepsy-related internet searches was observed during the Saint Nicholas period in the Netherlands (p<0.001).
No comparable increase in epilepsy searches was detected during the same period in the United States or the United Kingdom.
This geographical difference highlights the potential impact of the specific cultural stressor.

Conclusions:

The rise in epilepsy searches during the Saint Nicholas period suggests a possible increase in seizure occurrences.
This study demonstrates the utility of monitoring online health information-seeking behavior for clinical research.
Provides indirect evidence supporting a link between stress and the manifestation of epileptic seizures.