Atherosclerotic Cerebrovascular Disease with CVA and TIA - Pales Flashcards
3rd leading cause of death in US
stroke
CVA
stroke
abrupt onset of neuro eficit - attributable to focal vascular cause
types of strokes
hemorrhagic
ischemic (majority)
ischemic penumbra
brain tissue around necrosis that is reversible - with appropriate tx
large artery thrombosis
rupture of plaque with fibrous plaque
blood clot forms - occluding artery
emboli
from atherosclerotic plaque or thrombus
paradoxical emboli
from lower leg DVT
atrial cardiac emboli
A-fib
atrial septal aneurism
tumor - myxoma
A-fib
fast/ineffective atrial contraction
-stasis and thrombus formation
atrial septal aneurysm
weak and outpouch of septum - stasis and thrombus formation
atrial myxoma
piece of tumor tear off and embolize
ventricular emboli
cardiomyopathy
MI
ventricular aneurysm
cadiomyopathy
weak dilated ventricle - stasis and thrombi formation
libman sacks endocarditis
with SLE
marantic
non-bacterial thrombi from cardiac source
malignancy or hypercoag state
tighter the stenosis
higher risk of stroke
hole in heart
with paradoxical emboli
lacunar infarct
subcortical areas of brain
-asymptomatic/minor sx
large artery branch to small artery right away - get lipohyalinosis from high pressure
hyperplasia and hyalinosis of vessel walls - narrow and occluded
watershed infarct
with profound hypotension
sepsis, bleeding, dehydration
hemostasis
3 parts working other
coag system
anticoag system
thrombolytic system
hypercoagulable state
factor V - leiden mutation protein C and protein S antithrombin deficiency plasminogen deficiency prothrombin mutation
antiphospholipid Ab syndrome
arterial clotting
anticardiolipid Abs
lupus anticoagulantas
hyperhomocysteinemia
hyperhomocysteinemia
hypercoag
other hypercoag states
pregnancy cancer HRT prolonged bed rest/immobile myeloproliferative
vasculitis
inflammed vessels
-cause of stroke