Venovenous Fistula Formation for Complete Venous Occlusion in Patient with Radiocephalic AVF

Radiocephalic AVF is commonly the primary vascular access for hemodialysis.However, complications such as outflow vein stenosis or occlusion often occur with long-term use, leading to a high negative pressure during hemodialysis.Endovascular angioplasty is an effective and safe treatment for stenotic or occluded outflow veins; however, it may pose difficulties in cases of complete occlusion, particularly if anatomical access is challenging.This case study describes the successful creation of a venovenous fistula using a sharp recanalization technique to address a total occlusion of the cephalic vein in a patient with radiocephalic AVF, resulting in a well-functioning fistula during follow-up.