Seizure and epilepsy Flashcards
Transient occurrence of signs or symptoms caused by a self-limited, abnormal, hypersynchronous electrical discharge of cortical neurons
Seizure
Features of automatism
Lip-smacking
Repeated swallowing
Chewing
Picking motions with hands
Seizure type associated with automatism
Complex partial/impaired awareness focal
Most common focal area in complex partial seizures
Temporal lobes (70-80%)
Phases of tonic-clonic seizure
Abrupt LOC
Bilateral tonic extension
Clonic phase
Postictal phase
Types of motor generalized seizures
Tonic-clonic
Atonic
Myoclonic
EEG hallmark of absence seizures
Generalized symmetric 3 Hz spike
Seizure type associated with burst firing of thalamocortical fibers Ca channels that tends to be provoked by hyperventilation
Absence seizure
Idiopathic generalized epilepsy the presents as bilateral myoclonic jerks between the ages of 10-20 yo
Juvenile myoclonic epilepsy
EEG findings in juvenile myoclonic epilepsy
4-5 Hz generalized spike wave discharges
Severe form of childhood epilepsy with multiple seizure types and cognitive impairment
Lennox-Gestaut syndrome
EEG finding in Lennox-Gestaut syndrome
<3 Hz slow spike and wave discharges
Underlying CNS pathologies that may be identified in Lennox-Gestaut syndrome
Tuberous sclerosis
Perinatal hypoxia/ischemia
Meningitis
Developmental brain malformations
Age of onset in mesial temporal lobe epilepsy
7-20 yo
Focal seizures with impairment of consciousness, commonly with aura, in pts with a history of febrile seizures
Mesial temporal lobe epilepsy