Embolization of a renal artery aneurysm using ethylene vinyl alcohol copolymer (Onyx).
OBJECTIVE
To report the embolization of a renal artery aneurysm using Onyx, a radiopaque nonadhesive liquid embolic agent.


METHODS
A 28-year-old woman with hypertension and fibromuscular dysplasia presented with a 20-mm renal artery aneurysm. In order to avoid any migration of embolic material into the parent vessel, a compliant balloon was inflated to exclude the aneurysm from the blood flow while injecting the liquid embolic agent. Complete aneurysm exclusion was achieved immediately, with no angiographic or duplex evidence of distal embolization or intra-aneurysmal flow. The Doppler ultrasound at 6 months confirmed aneurysm exclusion.


CONCLUSIONS
The ease of use and nature of this material makes Onyx an effective and safe option in the treatment of wide-necked renal aneurysms.
Lupattelli
Tommaso
T
Department of Radiology, St. George's Hospital, London, England, UK. tommasolupattelli@hotmail.com
Abubacker
Ziyad
Z
Morgan
Robert
R
Belli
Anna-Maria
AM
D000328:Adult; D000783:Aneurysm / Q000628:therapy*; D004121:Dimethyl Sulfoxide / Q000627:therapeutic use*; D004621:Embolization, Therapeutic; D005260:Female; D006801:Humans; D011145:Polyvinyls / Q000627:therapeutic use*; D012078:Renal Artery Obstruction / Q000628:therapy*
C450660:Onyx copolymer; D011145:Polyvinyls; D004121:Dimethyl Sulfoxide