Neuro Flashcards
Acute Mx of migraine
triptan (5HT agonist) + NSAID/paracetamol +/- metoclopramide*/prochlorperazine
*may cause acute dystonic reactions in young
who should have migraine prophylaxis?
what drugs?
> 2 attacks/month
1) topiramate or propanolol
* propanolol preferenced for women of child bearing age as ?teratogenic for topiramate
2) acupuncture or gabapentin
causes of restless leg syndrome
Fe deficiency uraemia DM pregnancy idiopathic - positive FH in 50%
Mx of restless leg syndrome
massage/stretching dopamine agonist (ropinirole)
Reasons to start antiepileptics after 1st seizure
unacceptable consequences of second seizure
structural changes on brain imaging
unequivical epileptic activity on EEG
neurological deficit
1st line meds for:
generalised seizures
partial seizures
sodium valproate (weight gain) carbamazepine
pathological changes in Alzheimers disease
intraneuronal neurofibrillary Tau protein tangles
neuronal plaques
deposition of type A beta-amyloid protein in cortex
Mx of Alzheimers disease
mild-mod: acetylcholinesterase inhibitors - donepezil, galantamine, rivastigmine
mod-severe: NMDAr antagonist - memantine
symptoms of normal pressure hydrocephalus
urinary incontinence
gait disturbance
dementia and bradyphrenia (slow thoughts)
pathological cause of normal pressure hydrocephalus
secondary to what?
Mx
reduced CSF absorption at the arachnoid villi
secondary to head injury, SAH, meningitis
Mx: ventriculoperitoneal shunt
medical management of MND
riluzole - prevents glutamate r stimulation
mainly used in amyotrophic lateral sclerosis
increases life by 3months
Chorea - which part of the brain affected
basal ganglia, especially caudate nucleus
what is Uhthoff’s phenomenon?
worsening of neurological symptoms following rise in body temperature with demyelinating conditions
symptoms of MS
vision: Internuclear ophthalmoplegia, optic neuritis, optic atrophy
sensory: Lhermitte’s syndrome, paraesthesia
motor: spastic weakness (legs more commonly)
cerebellar: ataxia
urinary incontinence, sexual dysfunction
what is Lhermitte’s sign?
shooting pain down the spine on flexion of the neck
ass. with MS
Dx criteria for migraine
atleast 5 attacks of: - headache lasting 4-72hrs - n&v or photo/phonophobia - >2 of: pulsating nature unilateral disrupts usual activity mod-severe
features of CN III palsy
eye “down and out”
diplopia
ptosis
mydriasis (dilated pupil if “surgical”) - affected parasympathetic innervation
features of Horner’s syndrome
miosis (constricted pupil)
ptosis
anhydrosis
Features of neurofibromatosis type 1:
cafe-au-lait spots (>6) axillary/groin freckles peripheral neurofibromas Lisch nodules in the iris (pigmented spots) scoliosis phaeochromocytoma
features of neurofibromatosis type 2
bilateral acoustic neuromas
chromosomes affected in neurofibromatosis 1 and 2
NF1 - 17 - 17 characters in neurofibromatosis
NF2 - 22 - all the 2s
risk factors for cluster headaches
male
smoking
features of cluster headache
lacrimation, redness, nasal congestion
pain around 1 eye,
1 or 2 attacks/day
cluster for 4-12 weeks
Mx of cluster headache, acute and prophylaxis
100% oxygen, SC sumatriptan, nasal lidocaine
prophylaxis: verapamil, pred