Therapeutic embolization of idiopathic renal arteriovenous fistula using the "stop-flow" technique.
OBJECTIVE
To present a case of massive idiopathic arteriovenous fistula (AVF) successfully treated with an endovascular procedure.


METHODS
A 42-year-old woman with microscopic hematuria was found to have a massive idiopathic renal AVF. Percutaneous embolization was undertaken using a dual approach to deliver an occluding balloon through the draining vein and an arterial access to selectively catheterize the aneurysmal afferent artery. With the balloon inflated to interrupt flow ("stop-flow" technique), acrylic glue was delivered precisely to occlude the lesion. Duplex scans at 12 months have documented continued complete occlusion of the anomalous communication.


CONCLUSIONS
The dual arterial and venous approach with the "stop-flow" technique makes it possible to successfully treat idiopathic AVFs that have constant high-flow connections.
Mansueto
G
G
Department of Radiology, University of Verona, Italy. mansueto@borgoroma.univr.it
D'Onofrio
M
M
Minniti
S
S
Ferrara
R M
RM
Procacci
C
C
D000328:Adult; D001164:Arteriovenous Fistula / Q000628:therapy*; D004621:Embolization, Therapeutic / Q000379:methods*; D005260:Female; D006801:Humans; D012077:Renal Artery / Q000002:abnormalities* / Q000473:pathology*; D012082:Renal Veins / Q000002:abnormalities* / Q000473:pathology*