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Study identifier: NCT06800430 Synced from ClinicalTrials.gov · July 28, 2026
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Graft Failure and Consequences of Coronary Artery Bypass Graft Surgery

Condition: Coronary Artery Bypass · Graft Failure · Coronary Artery Bypass Graft  ·  Sponsor: University of Edinburgh

PhaseN/A
Planned participants70
Who can joinAll sexes, 18 Years to no upper limit
Healthy volunteersNo

About this study

Coronary artery bypass graft (CABG) surgery is the commonest type of heart operation performed. During this, arteries or veins (termed 'grafts') are used to supply blood around blockages within the blood vessels that supply the heart. Unfortunately, these grafts can sometimes fail, and patients can also experience complications like heart attacks and strokes, after surgery. It is known that vein grafts are more likely to narrow over time. Additionally, treating vein graft failure is very challenging, as repeat surgery is riskier and procedures to stent open the veins can also fail. However, it is not fully understood why these complications occur. In this study, the investigators will use an imaging technique called a total-body Positron Emission Tomography (PET) scan. This uses special radioactive dyes (radiotracers) to look at what is happening inside vein grafts. With this technique, the investigators will also be able to see what is happening to the heart, brain and wider parts of the body after CABG surgery. This study will aim to recruit 70 participants in total (maximum 150). 40 (maximum of 120) of these participants will have recently undergone CABG surgery and received ≥1 vein graft. The remaining 30 will have undergone CABG surgery ≥5 years ago and will have symptoms suggestive of vein graft failure. The study will last a total of 36 months and will involve participants undertaking the following assessments: 1. Total-body Positron Emission Tomography and Compute…

This description comes directly from the study's public registry record.

Talk to the study team

Laura E Clark, BSc, MBChB, MRCS(Ed)  ·  +447717478087  ·  lclark15@ed.ac.uk

David E Newby, BSc (Hons) PhD BM DM DSc FRCP  ·  d.e.newby@ed.ac.uk

Always discuss trial participation with your own doctor first.

Locations (1)

Royal Infirmary of EdinburghEdinburgh, Midlothian, United KingdomRecruiting

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Source record: clinicaltrials.gov/study/NCT06800430