Ischemia/Stroke Flashcards
Most common complication of berry aneurysm is
rupture
berry aneurysm Most common site is ________. Associated with ________
junction of ACom and ACA
ADPKD, Ehlers-Danlos syndrome, coarctation of aorta
Obstruction due to HTN:
Rupture due to HTN:
Lacunar stroke
CBMA
berry aneurysm occurs at
bifurcations in the circle of Willis
Diffusion-weighted MRI can detect ischemia within
3–30 min.
Neonatal IVH is due to ________
reduced glial fiber support and impaired autoregulation of BP in premature infants
Therapeutic hypothermia
32-34’C (89.6-93.2) can be used after hypoxic or ischemic brain injury due to cardiac arrest. it lowers verebral metabolic activity.
Subgleal hemorrhage: b/w layers Consistency extent structure damaged
►periosteum and gleal aponeurosis
►diffuse, fluctuant
►extends beyond suture lines and potentially into neck
►emissary veins
Cephal hematoma:
b/w layers
Consistency
extent
►skull and periosteum
► firm, non-fluctuant
► doesnot cross suture line
Epidural hematoma is limited by
suture lines
Subdural hematoma is limited by
dural reflections
Most common complication of SAH is
- ↑ICP
2. Vasospasm
Mostly hemorrhagic stroke due to HTN occur in ________
deep brain
Mostly hemorrhagic stroke due to old age/amyloid angiopathy occur in _____
cortex
Hypertensive hemorrhages (Charcot-Bouchard microaneurysm) most often occur in
(PTPC)
putamen of basal ganglia (lenticulostriate vessels), followed by thalamus, pons, and cerebellum .
Intraparenchymal hemorrhage: Most commonly caused by ______
systemic hypertension
Parietal lobe hemorrhage:
Frontal lobe hemorrhage:
contralateral hemisensory loss
contralateral hemiparesis
Only motor or only sensory loss rules out which arteries?
MCA, ACA
____ is specific for PICA
Nucleus ambiguous IX, X,XI
_____ is specific for AICA
Facial nucleus
Pure motor contralateral paralysis in the absence of cortical signs → lesion of _____
internal capsule (posterior limb)
Locked in syndrome + preserved consciousness (RAS sparing) → _____
Locked in syndrome + coma (RAS incolved) → _____
► Basilar artery
► pontine arteries
