renal artery stenosis Flashcards
1
Q
what are causes of renal artery stenosis?
A
Atherosclerosis in 80%
Fibromuscular dysplasia
Thromboembolism
External mass compression
2
Q
what are features of RAS?
A
Refractory hypertension
Worsening renal function after ACEi/ARB
Flash pulmonary oedema (no LV impairment on echo)
3
Q
what are investigations for RAS?
A
US + doppler- small kidney and reduced flow
CT/MR angio
renal angiography is gold standard
4
Q
what is the gold standard investigation for renal artery stenosis?
A
renal angiography
5
Q
what is the treatment of renal artery stenosis
A
treat medically cardiovascular risk factors
angioplasty + stenting
