Keywords:
Kidney, Arteries / Aorta, Vascular, CT-Angiography, MR-Angiography, Fluoroscopy, Angioplasty, Stents, Hypertension, Arteriosclerosis
Authors:
R. Gandini, E. Pampana, D. Morosetti, G. Loreni, A. Chiaravalloti, G. Simonetti; Rome/IT
DOI:
10.1594/ecr2013/C-0784
Purpose
Renal artery aneurysms (RAA) are uncommon conditions,
with a reported prevalence of 0.01% and 1.0% (01-09).
They correspond to the 22% of visceral aneurysms and most are due to fibromuscolar dysplasia and atherosclerosis.
However,
these aneurysms can also arise from congenital disorders (i.e.,
Ehlers- Danlos syndrome and neurofibromatosis),
trauma,
dissection,
infectious sources,
and inflammatory causes,
such as polyarteritis nodosa (02,06-13).
The risk of rupture seems to increase as the diameter exceeds 1,5 cm,
with a 20-100% rupture-related mortality rate (03,07,10,14,15). Often,
before the rupture,
this pathology is asymptomatic and the diagnosis is accidental,
but,
in some patients,
it can be associated with hypertension and,
in advanced stages,
chronic renal insufficiency (03,04,13,16).
Up to 80% of the aneurysms have saccular shape and can be treated either with coil embolization or with stent deployment (04,16).
The aim of the study is to examine feasibility,
effectiveness and results of treatment of the renal artery aneurysms positioned in the main artery using covered stents.