aneurysms Flashcards
process of an aneurysm
blood vessel –> HTN –> blood vessel dilates (vessel wall thickens) –> blood vessel bursts (aneurysm)
aneurysm
HTN weakens walls of arteries, increasing development of bulges in arterial walls (aneurysms)
*cause turbulent blood flow, susceptible to rupture
what may be heard of an aneurysm
bruit
most common areas for aneurysms
aorta
cerebral arteries
common types of aneurysms
location:
abdominal aortic aneurysm
thoracic aneurysm
cerebral
type:
saccular
fusiform
berry aneurysm
variations of aneurysms
dissecting aortic aneurysm (blood in-between vessels and rips layers apart)
false (pseudo) aneurysm (localized tear in wall)
how are aneurysms classified?
above or below renal artery
suprarenal (above)
infrarenal (below)
saccular aneurysm
balloon shaped
involves only one side of artery
wide neck
(SAC hanging off artery)
fusiform aneurysm
entire vessel
gradual/progressive dilation
potentially extensive involvement
berry aneurysm
subtype of saccular
small neck
located at bifurcation
common location: circle of willis
**rupture can be deadly d/t this location
circle of willis
provides a connection between anterior and posterior circulation at the base of the brain
false (pseudo) aneurysm
localized dissection or tear in inner artery wall
type of hematoma
which type of aneurysm is a complication of vascular interventional procedures?
false (pseudo) aneurysm
can result d/t a tear in arterial wall
aortic aneurysm types
ascending aorta
aortic arch
descending aorta
abdominal aorta
abdominal aortic aneurysm (AAA)
if bruit heart, presence of aneurysm suggested
if pulsatile mass seen during inspection or found during light palpation – deep palpation should NOT be performed
if aneurysm bursts through THICKEST vessel, pt could bleed out
