A Computational Analysis of the Influence of Anastomosis Angle on Stenosis-Prone Locations during Radio-Cephalic Arteriovenous Fistula Maturation

In dialysis treatment, the radio-cephalic arteriovenous fistula (RCAVF) is a commonly used fistula, yet its low maturation rate remains challenge. To enhance surgical outcomes, relationship between stenosis-prone locations and RCAVF anastomosis angle studied during by developing two sets of models for early (non-mature) mature RCAVFs at five angles. The impact hemodynamics wall shear stress (WSS) examined to determine optimal anastomotic Results indicate that acute angles produce more physiological WSS distributions fewer disturbed regions, with regions located near shift bending venous segment remodeling. A pilot study comparing clinical numerical results conducted validation.