Contactless Optical Monitoring of AV Access Using the PatenSee System in Outpatient Hemodialysis Patients

Inclusion Criteria: 1. Male and female adult patient aged ≥18 years old 2. Patient has a non-reversible kidney failure that requires long-term hemodialysis 3. Patient has a functioning AV access (AVF/G) in the upper extremity 4. Patient is able and willing to provide consent by signing an EC/IRB approved informed consent form 5. Patient is willing and able to follow the requirements of the study Exclusion Criteria: 1. An active AV access infection 2. An AV access condition that will likely require revision, e.g., symptomatic steal syndrome 3. Expected to recover kidney function, receive a kidney transplant, transfer to peritoneal dialysis (PD) or transfer to non-study site during the study period. 4. Any reason per investigator's discretion for which the patient is not suitable for the study 5. Any medical or psychiatric illness, which in the opinion of the investigator would compromise the patient's ability to adhere to study requirements 6. Previous participation in an interventional study within 30 days prior to study enrollment that may interfere with evaluation of the study endpoints 7. Female patient is pregnant or breastfeeding