Introduction:
Robert Goetz first performed and published the coronary artery bypass
graft surgery in humans in 1961, now CABG has become an important
revascularization methods of coronary heart
disease[2]. Since the mid-1980s, owing
to the high patency, the use of the left internal mammary artery (LIMA)
for left anterior descending artery (LAD) grafting has been a
cornerstone of CABG surgery[3].
However, owing to stenosis or occlusion of LIMA or harvested damage,
surgeons have to choose other conduit materials to revascularize the
LAD. The surgeons and fluid
mechanics experts hold that the great saphenous vein has higher mean
graft flow with less interference from external factors and is easier to
anastomosis, due to its own vascular properties. A previous study
demonstrated that studies on TTFM should consider conduit materials and
different coronary territories, while few studies on the comparison of
different conduit materials used for LAD in TTFM parameters have been
reported[5]. The purpose of this study
was to explore whether the great saphenous vein has more advantages in
terms of TTFM parameters than the left internal mammary artery for the
revascularization of left anterior descending arteries.