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12-month follow-up of the surveillance of arteriovenous fistulae in haemodialysis (SONAR) study

Surveillance of arteriovenous fistulae in haemodialysis- 12 Month (SONAR-12M) follow-up study: a prospective observational cohort study to determine whether ultrasound surveillance can reliably predict arteriovenous fistulae failure in patients with chronic kidney disease

Status
Recruiting
Phases
Unknown
Study type
Observational
Source
ISRCTN
Registry ID
ISRCTN17399438
Enrollment
311
Registered
2021-03-04
Start date
2021-04-01
Completion date
Unknown
Last updated
2024-06-03

For informational purposes only — not medical advice. Sourced from public registries and may not reflect the latest updates. Terms

Conditions

Clinically indicated need for the creation of an arteriovenous fistula (AVF), established (dialysis dependant) renal disease, approaching End-Stage Renal Disease (ESRD) Urological and Genital Diseases End-stage kidney disease: on dialysis

Interventions

For this prospective observational cohort study, there will be no formal interventional comparison. Participating patient’s medical records will be reviewed to collect data on their fistula. Data will

Sponsors

Cambridge University Hospitals NHS Foundation Trust
Lead Sponsor
University of Cambridge
Collaborator

Eligibility

Sex/Gender
All

Inclusion criteria

Inclusion criteria: 1. Previously participated in the SONAR study 2. Provides full informed consent to participate

Exclusion criteria

Exclusion criteria: 1. Death since SONAR participation 2. Withdrew from the SONAR trial

Design outcomes

Primary

MeasureTime frame
Primary fistula patency at 6-months post-creation measured as the interval (in days) between access creation to the earliest of fistula thrombosis, abandonment (except abandonment because of steal or pseudoaneurysm), intervention on the fistula (to re-establish patency), or the time of measurement of patency measured from medical records at 12 months after fistula creation

Secondary

MeasureTime frame
1. Formation of a new fistula (including fashioning of proximal neoanastomosis) or radiological salvage procedure measured from medical records at 12 months after fistula creation 2. Fistula thrombosis measured from medical records at 12 months and 5 years after fistula creation 3. Secondary fistula patency at 6- and 12-months post-creation measured from medical records at 12 months after fistula creation 4. Assisted primary fistula patency at 6- and 12-months post-creation measured from medical records at 12 months after fistula creation 5. Primary fistula patency at 12-months post-creation 6. Functional patency and, if functionally patent, time to the event, measured from medical records at 12 months and 5 years after fistula creation 7. Haemodialysis discontinued (due to improvement in renal function, withdrawn from dialysis, switched to peritoneal dialysis, or kidney transplant received) measured from medical records at 12 months after fistula creation 8. Continued dialysis, transplantation, or death measured from medical records at 5 years after fistula creation 9. Primary and secondary fistula patency measured from medical records at 5 years after fistula creation

Countries

England, Scotland, United Kingdom

Contacts

Public ContactAnna Sidders
sonar@nhsbt.nhs.uk+44 (0)1223 588915

Outcome results

None listed

Source: ISRCTN (via WHO ICTRP) · Data processed: Feb 8, 2026