Hemodialysis Access Surveillance Evaluation Study

"Access recirculation, access flow would be determined using the ultrasound dilution technique (Transonic system).~1. Within 90 min of the beginning of HD session HD03 sensors are clamped HD tubing lines~2. Recirculation, access flow will be performed according to HD03 Manual.~3. Post intervention evaluation is as per each arm follow up unless other follow up deemed necessary by the interventionalist."