Seizures Flashcards
Myoclonic seizures, in particular, may have a focus where in the brain?
Subcortical
What are the ions concentrations that are present at rest within a neuron?
K is in, Na is out
What is the role (physiological mechanism) of antiepileptics in preventing seizures?
Stop the spread of abnormal impulse, not stopping the abnormal impulse from happening
Odd numbers on an EEG represents what? Even?
Even = Right side Odd = Left side
What is the definition of epilepsy?
More than 1, unprovoked seizure
Which gender has a higher prevalence of epilepsy?
Males
What percent of epileptic patients function normally?
80%
What percent of epileptics are free of seizures with medication?
60%
What percent of epileptics report side effects from the medications?
50%
There is an increased incidence of epilepsy with what conditions (2), and in what population?
- Developmental delay
- Psychosis
- Prison population
Can you drive a car with occasional epilepsy?
Nah dawg
What are the endocrine problems with epilepsy meds?
Amenorrhea
Hirsutism
What is the major metabolic effects of epilepsy meds
Osteoporosis
What is SUDEP?
Sudden unexplained death in epilepsy
Are seizures a symptom or a disorder?
Symptom
How do you classify seizures?
By where the seizure begins (partial vs generalized)
What are the 7 types of generalized seizures?
- Tonic
- Clonic
- Tonic-clonic
- Atonic
- Myoclonic
- Absence
- Infantile spasms
What is decerebrate posturing? Decorticate? What does each mean?
Decerebrate = arms extended d/t subcortical lesion
Decorticate = arms flexed d/t cortal insult
Is there always LOC with generalized seizures?
Yes–definition of generalized seizure
What is the usual duration of generalized seizures?
3-5 minutes–more than 5 is status epilepticus
Do seizures in themselves cause brain damage?
No–but aspiration, pneumonia, etc can
True or false: seizures beget seizures
True
What are the EEG patterns of absence seizures?
3 hz spike and slow wave
What are the EEG patterns of frontotemporal seizures?
Frontal temporal spikes
What are the EEG findings of Juvenile myoclonic seizures?
Less than 3-6 hz polyspike and wave
What is the prognosis for absence seizures?
Normal development, and no lasting issues
What is myoclonus?
Intermittent Jerking
True or false: atonic seizures are usually associated with MR
True
What percent of seizures are partial seizures?
80%– the other generalized, obviously
What is the difference between complex and simple partial?
Alteration or LOC or w/ complex
What are the four major simple partial seizures?
- Motor
- Sensory
- Autonomic
- Psychic