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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...

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,...

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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Related Experiment Video

Updated: May 30, 2026

Behavioral Characterization of Pentylenetetrazole-induced Seizures: Moving Beyond the Racine Scale

Behavioral Characterization of Pentylenetetrazole-induced Seizures: Moving Beyond the Racine Scale

Published on: July 8, 2025

Complex partial cluster seizures in cats with orofacial involvement.

Akos Pakozdy¹, Andrea Gruber, Sibylle Kneissl

¹Clinic for Internal Medicine and Infectious Diseases, Vienna, Austria. akos.pakozdy@vetmeduni.ac.at

Journal of Feline Medicine and Surgery

|July 29, 2011

Summary

Complex partial seizures in cats, often involving facial movements, can indicate hippocampal necrosis (HN). This condition is not always fatal, and supportive care can lead to good long-term outcomes.

Related Experiment Videos

Last Updated: May 30, 2026

Behavioral Characterization of Pentylenetetrazole-induced Seizures: Moving Beyond the Racine Scale

Behavioral Characterization of Pentylenetetrazole-induced Seizures: Moving Beyond the Racine Scale

Published on: July 8, 2025

Area of Science:

Veterinary Neurology
Comparative Pathology

Background:

Complex partial seizures in cats present with orofacial involvement, motor arrest, and behavioral changes.
Acute seizures may be linked to underlying neurological damage.

Purpose of the Study:

To investigate the association between acute complex partial seizures with orofacial involvement and hippocampal necrosis (HN) in cats.
To evaluate the prognosis and long-term outcome for cats diagnosed with HN.

Main Methods:

Seventeen cats with acute onset of complex partial seizures were evaluated.
Histopathology and magnetic resonance imaging (MRI) were used to diagnose hippocampal necrosis.
Long-term monitoring of surviving cats was conducted.

Main Results:

Hippocampal necrosis (HN) was confirmed in 11 cats and suggested in 6 cats via MRI.
Eight cats not euthanized acutely were monitored for a mean of 408 days; four survived.
Surviving cats showed a good quality of life, with potential for remission through supportive and antiepileptic therapy.

Conclusions:

Acute complex partial seizures with orofacial involvement are frequently associated with HN in cats.
HN is not necessarily a fatal condition, and long-term outcomes can be excellent with appropriate management.
Euthanasia in the acute phase should be reconsidered given the potential for recovery and good quality of life.