Vascular surgery Flashcards
1
Q
Define critical ischaemia
A
rest pain which requires opiates for >2 weeks and tissue loss assc. with ABPI <0.5
2
Q
Critical ischaemia triad
A
- Ischaemic rest pain
- Arterial insufficiency ulcers
- Gangrene
3
Q
Why does rest pain occur?
A
Metabolic demands of LL not met.
Worse at night and disturbs sleep as…
At night- warmth from covers increase metabolic demand, reduced CO and vasodilation, koss of gravity effect on pedal BP
Relieved by swinging legs to hang out of bed or placing feet onto a cold floor
4
Q
Complications of critical limb
A
More sensitive to trauma. Wounds take a long time to heal and ulcers form.
Infection more likely to occur and can lead to gangrene- rapid spread wors ein diabetes
