Aneurysms Flashcards
progression of an aneurysm
blood vessel –> high BP –> blood vessel dilates –> blood vessel bursts
aneurysms
bulges in arterial walls
how do aneurysms develop?
hypertension weakens the walls of arteries, increasing likelihood of aneurysms
what do aneurysms cause?
–turbulent blood flow
–bruits
most common areas for aneurysms
–aorta
–cerebral arteries
common aneurysms (names)
–abdominal aortic aneurysms (AAA)
–thoracic aortic aneurysm
–cerebral
variations of aneurysms
–dissecting aortic aneurysm
–false (pseudo) aneurysm
inferrenal aneurysm
below the renal artery
superrenal aneurysm
above the renal artery
saccular aneurysm
–balloon shaped
–involves only one part of circumference
–wide neck
fusiform aneurysm
–entire circumference of aneurysm
–gradual/progressive dilatation
–potentially extensive involvement
berry aneurysms
–subtype of saccular
–small neck
–located at bifurcation
–common location = Circle of Willis
side effect of rupture at Circle of Willis
death
false (pseudo) aneurysm
–localized dissection or tear in inner artery wall
–type of hematoma
–complication of vascular interventional procedures
how to identify an abdominal aortic aneurysm?
–auscultation of a bruit over the abdominal aorta
–pulsatile mass evident in abdomen via inspection or light palpation (NO deep palpation = rupture)
