ABD VASCULATURE Flashcards
what are the three types of aneurysms?
true false (pseudo) dissecting
______ is a type of aneurysm where it is commonly located in the cerebrum- small saccular shape.
berry
______ is a type of aneurysm that is infected.
mycotic
______ results from weakening of the media in severe atherosclerosis
atherosclerotic
______ is a spindle shaped dilatation in which the stretching process affects the entire circumference of the artery
fusiform
______ is a localized spherical outpouching of the vessel wall.
saccular
______ is defined as a focal dilatation with at least 50% increase over normal aortic diameter
aneurysm
______ & ______ aneurysms are commonly associated with AO aneurysms
iliac
popliteal
The most common cause of false (pseudo) aneurysms is ______
trauma
______ aneurysms usually originate at the AO arch in the thorax
dissecting
A dissection is a separation between the ______ & ______ of the AO wall.
intima
media
if the AO aneurysm is ______, the patient may be a candidate for a endovascular stent graft repair.
infrarental
symptoms of chronic mesenteric ischemia usually are not present until ______
2 of the 3 major mesenteric arteries are occluded or stenosed
______ presents as recurring postprandial abd pain and weight loss
chronic mesenteric ischemia
SMA velocity ______ is a good predictor of 70% stenosis
> 275 cm/s
CA velocity of ______ is a good predictor of a 70% stenosis
> 200 cm/s
compression of the proximal celiac axis by the median arcuate ligament of the diaphragm
arcuate ligament compression syndrome (celiac axis compression syndrome)
with celiac axis compression syndrome, an abd bruit is noted with ______ and disappears with ______.
expiration
inspiration
on ______, the median arcuate ligament compresses the ventral aspect of the celiac axis producing an āSā shaped celiac axis and a significant stenosis
expiration
on ______, the celiac axis straightens and the stenosis disappears and elevated systolic velocities decrease to normal values (<200 cm/s)
inspiration
______ is an abnormal connection between an artery and a vein
arteriovenous shunt or fistula
sonographic findings of an AVF include:
color flow bruit (tissue vibration)
pulsatile venous flow
low resistive arterial flow
percutaneous renal bx is the most common known cause of acquired ______
AVF
an AVF will produce a ______, ______ waveform
high velocity
low resistance
