Introduction: In patients with chronic coronary arteries disease (CAD), special in total coronary occlusions, collateral arteries are usual visible in angiography, and they regular direct into the distal occludent arteries, where was jeopardized by ischemia. .There are some discordant information about the influence of metabolic disorders, such as diabetes mellitus (DM), and coronary arteries bypass graft (CBAG) on collateral development.