Table 2.
Angiographic and Procedural Characteristics
| All patients (n=1,337) |
Atypical symptoms (n=150) |
Typical symptoms (n=1,187) |
P value | |
|---|---|---|---|---|
| Infarct-related coronary vessel | ||||
| Left main artery | 31 (2.3) | 10 (6.7) | 21 (1.8) | <0.05 |
| Left anterior descending artery | 610 (45.6) | 49 (32.7) | 561 (47.3) | <0.001 |
| Left circumflex artery | 152 (11.4) | 12 (8.0) | 140 (11.8) | 0.15 |
| Right coronary artery | 535 (40.0) | 79 (52.7) | 456 (38.4) | <0.001 |
| Multivessel disease | 646 (48.3) | 90 (60.0) | 556 (46.8) | <0.05 |
| Presence of chronic total occlusion | 116 (8.7) | 11 (7.3) | 105 (8.8) | 0.53 |
| TIMI flow Grade 0 before PCI of the culprit lesion | 881 (65.9) | 94 (62.7) | 787 (66.3) | 0.38 |
| TIMI flow Grade 3 after PCI of the culprit lesion | 1,201 (89.8) | 129 (86.0) | 1,072 (90.3) | 0.11 |
| Drug-eluting stent implantation | 826 (62.4) | 82 (55.0) | 744 (63.4) | <0.05 |
| Use of intra-aortic balloon pump | 212 (15.9) | 36 (24.0) | 176 (14.8) | <0.05 |
| Use of mechanical ventilation | 115 (8.6) | 35 (23.3) | 80 (6.7) | <0.001 |
| Use of temporary pacing | 214 (16.0) | 41 (27.3) | 173 (14.6) | <0.001 |
| Renal replacement therapy | 33 (2.5) | 11 (7.3) | 22 (1.9) | <0.001 |
| Catecholamine therapy | 272 (20.3) | 63 (42.0) | 209 (17.6) | <0.001 |
| Door-to-balloon time (min) | 76 [55–109] | 101 [66–158] | 74 [54–103] | <0.001 |
| Door-to-balloon time ≤90 min | 847 (63.4) | 60 (40.0) | 787 (66.3) | <0.001 |
Categorical variables are presented as n (%) and continuous variables are expressed as the median [interquartile range]. PCI, percutaneous coronary intervention; TIMI, Thrombosis in Myocardial Infarction.