Neurology Flashcards
TIA
Time component??
Transient episode with neurological deficits that lasts less than 24 hours
Stroke distribution
Anterior cerebral artery
Contralateral hemi paresis of Leg > face, arm
Stroke distribution
Middle cerebral artery Left
Brocas aphasia + contralateral hemiparesis face and arm > leg
Opthalmic artery
Amaurosis fugax
Vertebral and basilar artery
Diplopia, dysarthria, dysphagia, vertigo, gait
Stroke site
Corona radiata
Weakness and sensory deficit of limbs and face.
5h’s of neuroprotection
- Avoid hypotension
- Hypoxemia
- Hypoglycemia
- hyperglycemia
- Hyperterhmia
Hemorrhagic stroke ICP management
- Elevate head 30-45 deg.
- IV mannitol
- Hypertonic saline
- Serum osm 300-320 mosm/kg
- Hyperventilation pCO2 30-35
Cut off for surgery of hemorrhagic stroke
- > 3cm + deficits for cerebellar
- AVM
- large lobar hemoorahage
- Supratentorial hematoma >30cc.
Most common cause of SAH?
Trauma
Most common cause of non traumatic SAH?
Ruptured aneurysm of Acom-ACA junction.
Gold standard of SAH diagnosis?
Cerebral angiography.
Bacterial meningitis
- Adults organisms
- Trauma, surgery
- Immunocompromised
- S. Pneumonia, N. meningitides, H. Influenza
- Staphylococci, gram - bacilli
- S. Pneumonia, l monocytogenes, H. Flu
Treatment of bacterial meningitis
Dexamethasone + antibiotics
TB meningitis
Prodrome?
Treatment
2-4 weeks.
2HRZE, 10HR + corticosteroids.
