Vascular diseases Flashcards
What defines a true abdominal aortic aneurysm?
Through all 3 layers of the arterial wall
What defines a false aneurysm?
Only a single layer of fibrous tissue forms the wall
Which fibres are lost in an abdominal aortic aneurysm?
There is loss of elastic fibres and subsequent degradation of collagen fibres
What are the indications for surgery on AAA?
Symptomatic, increasing in size >5.5cm, rupture
Treatment for an aortic dissection ?
Type A - involves ascending aorta – surgical, Type B - involves ascending aorta – medical
Median arcuate ligament syndrome is caused by what?
arc shaped band of tissue which traps the celiac artery
What symptoms are seen in takayasu arteritis ?
Absent limb pulses, upper limb claudication (large vessel arteritis)
Who does takayasu arteritis commonly affect?
Females, asian, people who have renal artery stenosis
What are the signs of coarctation of the aorta?
syncope, claudication, bp mismatch between upper and lower limbs
What are the signs of subclavian steal syndrome?
syncopal symptoms
What causes subclavian steal syndrome?
proximal stenotic lesion of the subclavian artery
What do you use to investigate claudication?
ABPI, Duplex scanning, formal angiography
What are the signs of acute on chronic mesenteric ischamia?
Post prandial discomfort and weight loss with an acute event
Define Embolis
object carried in the bloodstream to lodge in a vessel
Define thrombosis
a local coagulation/ blood clot in part of the circulatory system
