The Use of Glyceryl Trinitrate Patches in Arteriovenous Fistulas

Status Completed

Clinical Trial Summary

The aim of the study is to determine whether the application of a glyceryl trinitrate patch (GTN patch) helps arteriovenous fistulas, created for renal dialysis access, mature so that they can be used.

Clinical Trial Description

Patients with end stage renal failure on haemodialysis must have a mechanism for achieving access to their vascular system for dialysis. Arteriovenous fistulas (surgically created connections between the artery and vein) are critical for the majority of patients. Not all the fistulas that are created work, a proportion fail early on and need to be revised or an alternative fistula created. A recent multicentre study demonstrated a 40% primary failure rate(1). In an attempt to increase the numbers of fistulae that reach maturation sufficient for dialysis access cannulation some renal centres apply GTN patches to the fistula at the time of surgery. It is thought that this works by increasing the size of the blood vessels and promoting blood flow through them and some preliminary work seems to support this(2).

The evidence for the use of GTN patches in arteriovenous fistula creation is theoretical or based on preliminary work rather than robust evidence. Similarly no evidence exists within the literature to determine the safety and definite efficacy of this procedure in this population. We propose to conduct a double-blinded randomised control trial to answer the study question: does the application of a GTN patch increase the venous outflow diameter post fistula formation and does this result in improved fistula patency. ;

Study Design

Allocation: Randomized, Endpoint Classification: Efficacy Study, Intervention Model: Parallel Assignment, Masking: Double Blind (Subject, Caregiver, Investigator, Outcomes Assessor), Primary Purpose: Treatment

Related Conditions & MeSH terms

Clinical Trial Details

NCT number	NCT01685710
Study type	Interventional
Source	University Hospital Birmingham
Contact
Status	Completed
Phase	Phase 4
Start date	April 2013
Completion date	June 2015

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