Patency of conduits in patients who received internal mammary artery, radial artery and saphenous vein graft

Abstract

Abstract Background Where each patient has all three conduits of internal mammary artery (IMA), saphenous vein graft (SVG) and radial artery (RA), most confounders affecting comparison between conduits can be mitigated. Additionally, since SVG progressively fails over time, restricting patient angiography to the late period only can mitigate against early SVG patency that may have occluded in the late period. An angiographically normal lumen in a patent graft, in the late period, would predict ongoing patency thereafter; whereas an irregular lumen would predict progression of conduit atheroma and possible failure in the long term. Objectives The primary analysis was perfect patency ..