Medical Research Project

Effect of inorganic nitrate on contrast-induced nephropathy in patients undergoing coronary angiography/percutaneous coronary intervention for Acute Coronary Syndrome (ACS): A randomised single-centre, double-blind placebo-controlled trial

Using beetroot to prevent kidney damage during heart tests

Complete

12/10/2017

South East

Clinical trial

Awarded amount: £144,825

Grant scheme: TRP

Institution: Queen Mary University of London

Principle Investigator: Prof Amrita Ahluwalia


Coronary angiography is a diagnostic tool used for a number of heart conditions. The test involves the injection of a contrast dye to visualise the blood vessels around the heart.

Whilst this is generally safe, it can cause a complication called contrast induced nephropathy (CIN). CIN is the third highest reason for kidney failure occurring in hospital and often involves costly treatment, including dialysis. This project sought to investigate whether ingestion of inorganic nitrate could reduce the risk of CIN in patients undergoing coronary angiography.

The team recruited 640 patients to the trial, split into two groups; one given inorganic nitrate (beetroot capsules) and the other a placebo. The results indicated that those given the inorganic nitrate had a 20% lower rate of CIN than those given the placebo. It also significantly reduced the chance of complications during the procedure and the risk of post-procedure heart attack and death. These results are significant in terms of translational potential given the effectiveness of the intervention mapped against its relative simplicity.

The team are preparing a publication for submission to the Lancet and intend to make proposals for further funding.

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