Slow-flow venous pressure for detection of arteriovenous graft malfunction.

Background: Early detection with elective intervention of malfunctioning arteriovenous (AV) grafts improves access viability. Herein, we evaluated outlet venous pressure (OP), normalized by mean arterial blood pressure (MABP), at varying blood flow (Qb) rates in the detection of venous outlet stenosis.

Methods: This single-center, observational study included stable dialysis patients with polytetrafluoroethylene (PTFE) AV grafts.