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.
Study Type
INTERVENTIONAL
Allocation
RANDOMIZED
Purpose
TREATMENT
Masking
NONE
Use of radial artery as a bypass conduit/graft to the left circumflex coronary artery region of the heart in CABG surgery
Use of long saphenous vein as a graft/conduit vessel to the left circumflex coronary artery region of the heart in CABG surgery
Royal Brompton & Harefield NHS Foundation Trust
London, United Kingdom
Proportion of radial artery and saphenous vein grafts patent at 10 years
Comparison of the patency of radial artery and long saphenous aorto-coronary bypass grafts at 10 years, assessed by an independent observer
Time frame: 10 years post surgery
Angiographic visual grading
Compare secondary angiographic visual grading in radial artery and long saphenous vein grafts
Time frame: 10 years post surgery
Patency (patent or complete occlusion, and secondary visual grading) of radial artery and internal mammary artery coronary bypass grafts
Compare the patency (patent or complete occlusion, and secondary visual grading) of radial artery and internal mammary artery coronary bypass grafts
Time frame: 10 years post surgery
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