Arterial Occlusive Disease/Aneurysms Flashcards
3 traits of atherosclerosis?
Degenerative
generalized
segmental`
example of generalized atherothrombosis?
coronary
cerebrovascular
renovascular
what kind of plaques more deadly?
smaller ones that suddenly occlude
Claudication is pain where?
Calf plus or minus thigh and buttock
what does ischaemic rest pain mean?
perfusion is so poor, distal limb only uses anaerobic metabolism
someone with ischaemic pain at night describes how?
wakes up with burning pain in extremity
3 patterns of lower limb occlusive disease:
Aorto-iliac (inflow)
femoro-popliteal (outflow)
Tibial/Crural
Sometimes a combo of all three
angioplasty +/- stenting is best when?
short segments
proximal arteries
endarterectomy is best when?
short segments
what to do for longer blocks?
bypass
what happens in endarterectomy?
take out the intima and media, leave adventitia
Aneurysms are weakness in what of what?
Elastin in Media
Collagen in adventiai
why popliteal aneurysm more risk of rupture?
more movement and bending
theory behind AAA?
back flow at bifurcation
how can you feel and tell it’s a AAA?
pulsatile in all directions
5 common places for aneurysms, not brain:
AAA infrarenal common iliac pop fem thoracic
2 primary risk factors for aneurysms?
smoking
hypertension
who has thoracic aneurysms more?
women
how would ruptured AAA present?
sudden onset of abdo or back pain in older than 60 male