Snowballing Technique for High Flow Arteriovenous Fistula: A Technical Note.

A novel endovascular technique to occlude high flow direct arteriovenous fistulae is presented, where the distal tip of the microcatheter acts as a nucleus that the operator can grow a plug from a liquid embolic agent. Its advantages (such as cost-saving and distal reachability), disadvantages (such as embolic material instability), and technique are discussed.