Test 1: Epilepsy and Alzheimer's Flashcards
Type of Partial seizures
simple
complex
partial simple seizures characteristics
aura
consciousness not impaired
memory intact
partial complex seizures characteristics
consciousness impaired
memory impaired
automatism
Type of generalized seizures
absence atonic tonic myoclonic tonic clonic
absence seizure characteristics
brief 2-5 seconds
onset 4-14 years
mild atonia
automatisms
atonic seizure characteristics
brief <15 seconds
sudden loss of muscle tone
tonic seizure characteristics
brief <20 seconds
sudden loss of muscle tone, dropping things
myoclonic seizure characteristics
brief
bilateral jerk of neck, shoulders, legs
tonic clonic seizure characteristics
loss of consciousness
tongue biting
incontinence
treatment of status epilepticus
IV benzo
(Fos)phenytoin
phenobarbital
3 ways to decrease excitatory stimulus in seizures
reduce sustained AP
reduce excitatory NT release
inhibit excitatory receptors
target to reduce sustained AP generation
Na channels
target to reduce excitatory NT release
synaptic vesicles
Ca channels
-T-type channels
-alpha2delta1 channels
target to inhibit excitatory receptors
glutamate receptor
how to increase inhibitory stimulus in seizures
enhance inhibitory neurotransmission via GABA
3 targets of AED on GABA to increase inhibitory stimulus
positive allosteric modulation
GABA reuptake inhibiton
inhibit metabolism
MOA of Na channel inhibiton
bind to and stabilize Na channels that are inactivated
AED that target synaptic vesicles
Levetiracetam
Brivaracetam
MOA of Keppra and Briviacet
bind with high affinity to a specific synaptic vesicle protein (SV2A) to inhibit release of neurotransmitter release
AED that target Ca channel
Gabapentin
Pregabalin
MOA of Gabapentin, Pregabalin
do not work on GABAr
bind w/ high affinity to alpha2-delta site of voltage-gated Ca channel to reduce release of glutamate and NE
AED that targets glutamate receptors
Perampanel
MOA of perampanel
noncompetitive AMPA receptor antagonist
AED that targets GABA transporter
Tiagabine
MOA of Tiagabine
inhibits GABA transporter to decrease GABA reuptake into neurons and glial cells=increase inhibitory transmission
AED that targets GABA transaminase
Vigabatrin
MOA of Vigabatrin
inhibit GABA transaminase (inativates GABA) to raise CNS GABA levels
AED that targets GABA-A receptors
Benzodiazepines
Barbiturates