Neurology Flashcards
(92 cards)
What are focal seizures?
Occur within discrete regions of the brain
What are features of a temporal lobe seizure?
Aura
Deja Vu
Affects mentally
What are features of a Jacksonian seizure?
Starts proximally
‘Marches down limb’
How are focal seizures managed?
Carbamazepine
Lamotrigine
What are side effects of carbamazepine?
Can put patients into status epilepticus
Visual disturbances
SIADH
Agranulocytosis
What is the mode of action of carbamazepine?
Bines to sodium channels
What is the management of tonic-clonic seizures?
Sodium valproate
Lamotrigine
What is an atonic seizure?
Sudden loss of muscle tone lasting 1-2seconds with brief loss of consciousness
What is the management of atonic seizures?
Sodium valproate
What are absent seizures?
Sudden brief lapses of consciousness lasting around 10 seconds - patient doesn’t know anything has happened
3Hz on EEG
What are myoclonic seizures?
Sudden and brief muscle contractions
What is the triad of Parkinsonism?
Bradykinesia
Resting tremor
Rigidity
What are other features of Parkinsonism?
Shuffling gait Reduced arm swing Micrographia Hypomimia Drooling REM sleep disorder Reduced olfaction Depression
What is parkinson’s disease?
Degeneration of dopaminergic neutrons in substantia nigra with Lewy Bodies seen
What are the treatments for Parkinsons?
Levodopa + carbadopa
Bromocriptine
Cabergoline
What are the side effects of levodopa?
Dyskinesia
Psychosis
Postural hypotension
What are the side effects of bromocriptine?
Impulse control problems
hallucinations
postural hypotension
What are the features of multi-system atrophy?
Parkinsonism
Autonomic features
Cerebellar signs
What are the features of progressive supra nuclear palsy?
Parkinsonism
Look down before looking up
Early falls
What drugs can induce parkinsonism?
Anti-psychotics: particularly haloperidol + chlorpromazine
metoclopramide
What is the management of drug induced parkinson’s?
Remove drug
procyclidine
Benzotropine
What are the features of vascular parkinson’s?
predominant affects lower limbs
Spasticity
Hemiparesis
Pseudobulbar palsy
What are features of type 1 neurofibromatosis?
Cafe au lait spots
Axillary freckling
Dermal neurofibromas
Lisch nodules on iris
What are the features of type 2 neurofibromatosis?
Bilateral vestibular schwannomas - tinnitus, vertigo, SN hearing loss