Aneurysms Flashcards Preview

CLP - Vascular > Aneurysms > Flashcards

Flashcards in Aneurysms Deck (11):
1

what are they?

dilatations of blood vessels (>150% of its normal diameter)
includes all 3 layers

2

how do they present?

mass effects
embolic events: development of mural thrombi
haemorrhage - rupture

3

types

atherosclerotic
syphilits (ascending aorta)
developmental eg berry (cerebral)
infective (mycotic)
dissecting (only involves 2 layers)

4

AAA

dilations of AA >3cm
USS offered >65

5

pathophysiology of aortic dissection

tear in intima
blood into media
produces second pocket of blood
can break back into original lumen (double barrelled aorta), rupture outwards through adventitia (haemorrhage) or spread in retrograde fashion to involve pericardial cavity (haemopericardium)
cuts off branches of arch of aorta

6

types of aortic dissection

A - proximal to L subclavian (surgery)
B - distal to L subclavian (medicine)

7

symptoms of aortic dissection

tearing pain
back of chest
down arms
shock
neuro symptoms
absent pulses
renal failure
acute lower limb ischaemia
visceral ischaemia

8

signs and symptoms of ruptured AAA

severe continuous or intermittent epigastric pain
radiates to back, groin
pulsatile, expansile abdo mass
signs of hypovolaemic shock
trash feet (if emboli)

9

differential diagnosis of AAA

renal colic
diverticulitis
pancreatitis
gastric/duodenal ulcer perforation
MI

10

surveillance of AAA

<3cm - discharged
3-4.4/4.5-5.4 - small 12 month USS and medium 3 month USS
>5.5 - large surgery

11

what is a pseudo-aneurysm?

not all layers involved