Angiographic characteristics
| SVD (n=1411; 70%) | MVD—CTO (n=447; 22%) | MVD +1 CTO (n=145; 7.2%) | MVD >1 CTO (n=17; 0.8%) | p Value | |
| Radial access, n (%) | 1365 (97) | 414 (93) | 120 (83) | 10 (59) | <0.0001 |
| IABP, n (%) | 40 (3) | 41 (9) | 31 (21) | 4 (29) | <0.0001 |
| Tracheal intubation, n (%) | 27 (2) | 20 (4) | 12 (8) | 7 (41) | <0.0001 |
| Single vessel disease, n (%) | 1411 (100) | 0 | 0 | 0 | <0.0001 |
| 2-vessel disease, n (%) | 0 | 341 (76) | 91 (63) | 0 | |
| 3-vessel disease, n (%) | 0 | 106 (24) | 54 (37) | 17 (100) | |
| IRA LM, n (%) | 1 (0.1) | 8 (2) | 3 (2) | 0 | <0.0001 |
| IRA LAD, n (%) | 593 (42) | 138 (31) | 67 (46) | 10 (59) | <0.0001 |
| IRA RCA, n (%) | 641 (45) | 229 (51) | 51 (35) | 2 (12) | 0.0002 |
| IRA CX, n (%) | 176 (12) | 72 (16) | 24 (17) | 5 (29) | 0.036 |
| TIMI flow 0 pre-PCI, n (%) | 802 (57) | 273 (61) | 86 (59) | 7 (41) | 0.23 |
| Symptom onset to hospital time (h, median, IQR) | 3.2 (1.7, 6.1) | 3.4 (1.9, 5.9) | 3.8 (2.0, 7.4) | 4.1 (2.1, 9.2) | 0.27 |
| Ischaemic time (h, median, IQR) | 4.0 (2.4, 7.1) | 4.3 (2.6, 7.2) | 4.8 (2.7, 9.4) | 5.7 (3.2, 10.7) | 0.05 |
| Door to balloon time (min, median, IQR) | 36 (27, 62) | 39 (27, 70) | 40 (29, 65) | 96 (43, 146) | 0.0005 |
| Use of GPI, n (%) | 1035 (73) | 296 (66) | 87 (60) | 4 (24) | <0.0001 |
| TIMI flow 0/1 post-PCI, n (%) | 24 (2) | 15 (3) | 9 (6) | 3 (17) | <0.0001 |
| Angiographic success, n (%) | 1136 (81) | 307 (69) | 105 (72) | 11 (64) | <0.0001 |
| MBG 0/1, n (%) | 100 (8) | 48 (11) | 20 (15) | 5 (29) | <0.0001 |
| Stenting, n (%) | 1384 (98) | 430 (96) | 132 (91) | 14 (82) | <0.0001 |
| CABG ≤30 days | 3 (0.2) | 24 (5) | 9 (6) | 1 (6) | <0.0001 |
| LVEF (%) | 53±13 | 50±14 | 43±15 | 25±13 | <0.0001 |
| LVEF <40%, n (%) | 241 (19) | 89 (23) | 57 (46) | 14 (87) | <0.0001 |
| Peak CK-MB (μg/l, median, IQR) | 140 (62, 270) | 142 (57, 264) | 142 (70, 333) | 337 (205, 460) | 0.0059 |
Angiographic success: <20% residual stenosis+IMI 3 flow post-PCI.
Other abbreviations as in table 1.
IRA, infarct-related artery; LM, left main; LAD, left anterior descending artery; RCA, right coronary artery; CX, left circumflex artery; GPI, Glycoproteins platelet inhibitors; TIMI, thrombolysis In myocardial infarction; MBG, myocardial blush grade; CABG, coronary artery bypass graft; LVEF, left ventricular ejection fraction; CK-MB, Serum myocardial band of creatine kinase; F-U, follow-up.