Pseudoaneurysm Flashcards
1
Q
What is pseudoaneurysm?
A
- breach to the arterial wall, resulting in an accumulation of blood between the tunica media and tunica adventitia of the artery.
2
Q
What causes pseudoaneurysm?
A
- Iatrogenic
- cardiac catheterisation
- IVDU
- Trauma
- Vasculitis
3
Q
Which arteries are prone to pseudoaneurysm?
A
- Femoral artery (most common)
- radial artery
- carotid artery
4
Q
What type of pseudoaneurysm is more likely to rupture?
A
- Infected pseudoaneursym
5
Q
What is a complication of acute pancreatitis?
A
- splenic pseudoaneurysm
6
Q
What are the clinical features of pseudoaneurysm?
A
- pulsatile lump, tender, painful
- distal arterial compression - limb ischaemia
- herald bleed
7
Q
What is herald bleed?
A
- haemorrhage + abdominal pain + catastrophic haemorrhage (after hours or weeks)
8
Q
What are the differential diagnosis of pseudoaneurysm?
A
- true aneurysm
- haematoma
- abscess
9
Q
What Ix would you order?
A
- Check distal pulses
- DUS
- CT
- Bloods
- FBC, CRP, U&E, Clotting, cultures, pus MCS
10
Q
How would you mx small pseudoaneurysm?
A
- leave alone
11
Q
How would you mx larger and symptomatic pseudoaneurysm?
A
- ultrasound-guided thrombin injection
- surgical repair/ligation
12
Q
How would you mx infected pseudoaneeurysm?
A
- surgical ligation
- bypass graft
- amputations (small proportion)
