Neurological Emergencies Flashcards
(42 cards)
Acute onset neuro conditions
Stroke
Subacute onset neuro conditions
Infection
Malignancy
Chronic onset neuro conditions
Neurodegenerative
How to think about neuro pathology location
Brain
Brainstem
Spinal cord
What are you worried when looking on a CT if someone has a haemmorhagic stroke?
Raised ICP - herniation - coning - death
Management of haemmorhagic stroke
Craniectomy - remove skull to relieve pressure so the patient doesn’t die
Conscious level? Midline shift?
How does something point towards encephalitis instead of meningitis?
seizures
agitation
confusion
Which cause of encephalitis should you not miss? How would you manage?
HSV encephalitis mx - Aciclovir
If someone has encephalitis, how do you manage?
Treat - IV aciclovir
Abx
CT - to exclude raised ICP
LP
Where does HSV encephalitis affect?
Medial temporal lobes- hippocampal
Often asymmetrical
Short term memory difficulties
Long term effect of HSV enchpalitis
Propensity for seizures in the future
Amnesia
Alcoholic with ataxia, confusion, forgetful
Wernicke’s - thiamine deficiency
Wernicke’s features
Ophthalmoplegia
Ataxia
Confusion
Below the level of L1 - what’s the syndrome
Cauda equina due to bleed, tumour, compression due to lumbar disc disease
Features of cauda equina syndrome
Lower back pain
Shpincter distrubance
Saddle anaesthesia - numbnress betweet legs
Pain down leg and limbing gait
Sphincter distrubance - where is the pathology
Spinal cord
Lermitte’s phenomenon - on flexion of spine - associated with cervical lesions
32 year old woman with acute onset of tingling in hands and feet. Heaviness in right leg and numb over left trunk. Several falls, bladder retention, electrical shock down spine on neck flexion.
MRI of brain and cervical spine
If lesion on spine alone - transverse myelitis
If brain and spine - MS
Demyelination
Sub acute - over a few days
Age - middle aged
Aquaporin 4 related disorders
71 year old man with severe back pain, tingling in feet more than fingers, palpitations, weakness of legs and falls, progression over hours/days, mild bilateral facial weakness. Where is the pathology.
Peripheral nerves.
Autonomic dysfunction with palpitations, arrhythmias, gut abnormalities etc
Peripheral nerve pathology causes
GBS
Peripheral neuropathies
GBS signs
Weakness
Back pain
Sensory disturbance (pain)
Numbness
Flaccid tone, sinking into the bed, floppy
Sensory signs but no symptoms - not really a problem