Radial Artery Versus Saphenous Vein Patency (RSVP) Trial - 10 Year Follow-up

Randomised, Controlled Trial Comparing Angiographic Patency of the Radial Artery Versus the Saphenous Vein Used as Free Aorto-coronary Grafts in Coronary Revascularisation (RSVP Trial) - 10-year Follow-up

During coronary bypass surgery, veins are taken from the leg and applied to the heart and aorta to 'bypass' narrowings in the coronary arteries. However using an artery in the chest, the internal mammary artery, means that the bypass lasts longer than using veins. The investigators recently showed that using an artery from the arm as a bypass vessel, the radial artery, also had less furring up than veins 5 years after surgery. Now the investigators would like to ask patients to come back for an angiogram 10 years following surgery.

Inclusion Criteria:

• Included in the RSVP study
• Willing to attend for coronary angiography
• Willing to give written informed consent

Exclusion Criteria:

• Contraindication to coronary angiography
• participation in research project within previous 60 days
• unwilling to give written informed consent