T-banding: a technique for flow reduction of a hyperfunctioning arteriovenous fistula.

A common procedure for hyperfunctioning arteriovenous fistulas is banding, baring the potential for complications such as pre- and poststenotic dilatations and recurrence of high flow caused by slipping of the band itself. We describe a new technique that ensures proper fixation of the graft to prevent anastomotic aneurysms and enlarge the length of stenosis of the shunt vein in order to amplify the effect of flow reduction. This technique was used in 22 patients, with a mean flow reduction of about 50%. The procedure was effective and safe at 1 to 3 months follow-up.