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32 Cards in this Set
- Front
- Back
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what % ATH HTN is cured by renal artery stent
% that improve |
10-20%
50-80% |
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cure rate in medial FMD after angioplasty
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40-50%
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page kidney
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subcapsular yhematoma --> renovascular HTN by compressive effect
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CT appearance of oncocytoma
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solitary encapsulated lesion with central stellate scar
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important finding that changes staging of RCC
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extent of IVC thrombosis
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angiographic appearance of oncocytoma
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dense enhancement with spoke wheel arrangement of BV
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angiographic appearance of AML
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hypervascular with multiple small aneurysms
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what type of renal cell cancer is hypovascular
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papillary
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minimallyh invasive tx of AML
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embolization
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etiologies of extrarenal artery aneurysm
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degenerative (ATH), FMD, arteritis, infx, trauma
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etiologies of intrarenal aneurysms
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necrotizing arteritis
PAN |
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complications of renal artery aneurysms
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thrombus
rupture |
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appearance of PAN in renal artery
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multiple aneurysms of small intrarenal vessels
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indication for renal artery aneurysm tx
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rupture
sx RAS --> HTN women of child bearing age >2cm, even if asx |
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complications of large renal AVF
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high output CHF
bleeding |
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most common etiology of AVF
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post-traumatic
congenital lesions are very rare |
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angio appearance of AVF
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many dilated tortuous vessels within subepithelium
AVF --> dilated feeding branch and early filling of draining renal vein |
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appearance of AVM on angio
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dilated toruous channels with rapid shunting into renal vein and IVC
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#1 cause of renal vein thrombosis in adult
child |
adult: nephrotic syndrome
kid: dehydration |
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tx of renal vein thrombosis
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anticoagulation
if acute thrombosis, surgical thrombectomy or endovascular tx |
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segmental arterial mediolysis
complication |
smooth muscle is replaced by fibrin and granulation tissue
aneurysm can occur if it extends to other layers |
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what level does renal artery arise
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L1-L2
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what happens to renal artery at hilum
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divides into dorsal/ventral rami
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are renal arteries or veins more anterior
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veins
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most common type of FMD
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medial FMD
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appearance of medial FMD
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string of beads, alternating narrowing and aneurysms
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what circumstances may not lead to a favorable outcome if renal vascular HTN is treated
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non-sig RAS
sig RAS + b/l nephrosclerosis (in this case kidneys themselves may be responsibel for HTN) |
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tx of FMD
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angioplasty alone
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what renal artery conditiions should be tx with angioplasty alone
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FMD
non-ostial ATH takayasu arteritis |
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indications for stent placement for renal artery repair
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ostial renal art stenosis with diameter >5mm
ailure of angioplasty subacute restenosis after angioplasty |
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why should a stent not be placedin renala rtery <5mm
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high rate of restenosis
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where is stent placed in osteal lesions
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abt 1mm inside aortic lumen to cover overhanging plaque
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