Defect extension Myocardium regions involved stented coronary branches (1) Myocardium regions uninvolved stented coronary branches All Coronary branches stenosis< 70% (2) Coronary branches stenosis ≥ 70% (3) n (n=122)% n (n=110)% n (n=23)% n (n=255)% No defect 66 54, 1 78 70, 9 12 52, 2 156 61, 2 Small 21 17, 2 12 10, 9 2 8, 7 35 13, 7 Medium 20 16, 4 14 12, 7 6 26, 1 40 15, 7 Large 15 12, 3 6 5, 5 3 13, 0 24 9, 4 p (1 - 2) > 0, 05; p (1 - 3) > 0, 05; p (2 - 3) > 0, 05 LV myocardium devided to 3 regions involved 3 main coronary artery branches: LAD, LCx, RCA 13 3.1.2.3.