Ischemic heart disease is the top cause of death globally. Percutaneous coronary intervention (PCI) and coronary artery bypass grafting (CABG) are options for patients requiring revascularisation. European guidelines advise discussing these patients in a multidisciplinary Heart Team In recent years, 64 slice multi-detector computed tomography (MDCT) has emerged as an alternative to ICA in evaluating the graft and native coronary arteries for its diagnostic potentials, low cost and safety. There need aid a number elements that influence graft patency which incorporate hypercholesterolemia, danger variable modification, for example, such that diet Also smoking auto cessation, and release therapies (counting antiplatelets Furthermore lipid-lowering agents) Purpose: to distinguish danger figures influencing Graft patency after sidestep surgery by utilizing MSCT coronary angiography. It may be single, center, cross sectional, observational investigation that held once Kobry-ElKobba military healing facility –Cardiology Branch Throughout the time from september 2018 should september 2019. There might have been statistically noteworthy the middle of number about grafts What's more patency from claiming grafts. Increment number about grafts reasons higher danger to blocked grafts.