Table 1. Eligibility Criteria for Patient Enrollment.

Inclusion Criteria
Malfunctioning RCAVF*
Lesions (de novo or restenosis) located at juxta-anastomotic venous site within 8 cm of anastomotic point of RCAVF
Angiographic confirmation of stenosis greater than 50% (vs. proximal reference diameter)
Ability to cross lesion with guide wire

^*Clinical signs of failing dialysis access: i) abnormally decreased inflow, including decreased thrill or bruit, collapsed draining veins, increased bleeding and prolonged hemostasis time after dialysis, and progressive decrease in flow obtained with needles of same gauge; ii) prescribed blood inflow rate < 250–300 mL/min; or iii) decreased inflow rate ≥ 25% from baseline. RCAVF = radiocephalic arteriovenous fistula