vascualar disease Flashcards
pathophysiology of vascular disease
atherosclerosis
inflammatory
vasopastic
compression
traumatic
pro thrombotic conditions
describe plaque formation
- fatty streak
- transitional plaque
- advanced fibrolipid plaque
- complicated plaque with thrombosis formation
how to describe plaque formation
progressive
components of plaque
foam cell - intra cellar lipid
extracelllar lipid
smooth muscle cell
thrombus
acute clinical complications of atherosclerosis
ulceration - acute thrombosis with occlusion and dislodging and peripheral embolism
thrombosis - acute ischameia/ necrosis i
growth - chronic ischaemia
necrosis - aneurysm development
modificable risk actors for peripheral arterial disease
• Smoking
• Hypertension
• Diabetes
• Hypercholesterolaemia
non modifiable risk factors for peripheral arterial disease
age
sex
describe acute ischaemia
• 6Ps
• Acute-embolus (AF, MI)
• Acute on chronic-thrombus
describe chronic ischaemia
• IC
• Rest pain
• Tissue loss • Burgers test
anterior circulation of brain
MCA, ACA and anterior choroidal artery
posterior circulation of brain
vertebral artery, basilar artery and posterior cerebral artery
what is carotid endartectomy
can be under local anaesthetic
isolate 3 vessels with a clamp
- interna, external, carotid
clean out vessels
how many strokes are ishacemic
60%
how many strokes are haemorrhagic
30%
what are true aneurysms
Weakening of the arterial wall leading to dilatation
• Commonest location is the infra- renal aorta