Seizures Epilepsy MBBS V Group C Tutor: Prof V Wong 16hFeb2004
Seizures & Epilepsy MBBS IV Group C Tutor: Prof. V. Wong 16th Feb 2004
Outline Definitions n PathophysIology Aetiology Classification Video demonstration Diagnostic approach Treatment
Outline Definitions Pathophysiology Aetiology Classification Video demonstration Diagnostic approach Treatment Quiz
Definition t Seizure(Convulsion) Clinical manifestation of synchronised electrical discharges of neurons Epilepsy Present when 2 or more unprovoked seizures occur at an interval greater than 24 hours apart
Definition Seizure (Convulsion) • Clinical manifestation of synchronised electrical discharges of neurons Epilepsy • Present when 2 or more unprovoked seizures occur at an interval greater than 24 hours apart
Definition Provoked seizures Seizures induced by somatic disorders originating outside the brain E.g. fever, infection, syncope, head trauma hypoxia, toxins, cardiac arrhythmias
Definition Provoked seizures Seizures induced by somatic disorders originating outside the brain E.g. fever, infection, syncope, head trauma, hypoxia, toxins, cardiac arrhythmias
Definition * Status epilepticus (SE) Continuous convulsion lasting longer than 30 minutes or occurrence of serial convulsions between which there is no return of consciousness Idiopathic SE Seizure develops in the absence of an underlying CNS lesion/insult SymptomatIc SE e Seizure occurs as a result of an underlying neurological disorder or a metabolic abnormality
Definition Status epilepticus (SE) Continuous convulsion lasting longer than 30 minutes OR occurrence of serial convulsions between which there is no return of consciousness Idiopathic SE Seizure develops in the absence of an underlying CNS lesion/insult Symptomatic SE Seizure occurs as a result of an underlying neurological disorder or a metabolic abnormality