Epilepsy Flashcards
What is the lifetime incidence of epilepsy?
2-4%
In epilepsy terminology, what does ‘simple’ mean?
Consciousness is not impaired
In epilepsy terminology, what does ‘complex’ mean?
Consciousness is impaired
In epilepsy terminology, what does ‘partial’ mean?
Focal onset
In epilepsy terminology, what does ‘generalised’ mean?
Onset in both hemispheres simultaneously
What are partial seizures most often caused by?
Focal structural lesions
What are generalised seizures most often caused by?
Genetic/inherited
Does idiopathic generalised epilepsy or complex partial seizures tend to respond better to anti-epileptic drugs?
Idiopathic generalised
What is the firstline drug for idiopathic generalised epilepsy?
Sodium valproate
What type of seizures is surgical resection usually best for?
Partial seizures
What histopathology is seen in mesial temporal sclerosis?
Neuronal loss and gliosis in CA1, CA3 and dentate hilus
Seizures beget ______
Seizures beget seizures
What do the majority of people with chronic, drug-resistant epilepsy have?
A structural lesion
What are the MRI features of mesial temporal sclerosis?
Hippocampal atrophy, T1 hypointensity, T2 hyperintensity, loss of internal architecture
If an MRI shows a nodular mass of grey matter lining the ventricular walls, what would this indicate?
Periventricular nodular heterotopia