Table 2.
Angiographic findings and procedural characteristics
| Variable | Total (n = 84) | KAMIR (n = 20) | KorMI (n = 64) | p value |
|---|---|---|---|---|
| Time from symptom onset to PCI, min | 311 ± 162 | 377 ± 146 | 290 ± 161 | 0.030 |
| Door-to-balloon time, min | 100 ± 79 | 140 ± 131 | 87 ± 45 | 0.087 |
| Multi-vessel coronary artery disease | 62 (73.8) | 14 (70.0) | 48 (75.0) | 0.710 |
| Infarct-related coronary artery | 0.554 | |||
| Left anterior descending | 43 (51.2) | 11 (55.0) | 32 (50.0) | |
| Left circumflex | 4 (4.8) | 0 | 4 (6.3) | |
| Right | 35 (41.6) | 8 (40.0) | 27 (42.1) | |
| Left main | 2 (2.4) | 1 (5.0) | 1 (1.6) | |
| TIMI flow, 0 or 1 before procedure | 60 (71.4) | 15 (75.0) | 45 (70.3) | 1.000 |
| Lesion complexity B2/C | 57 (67.9) | 16 (80.0) | 41 (64.1) | 0.854 |
| PCI with stent | 76 (90.5) | 19 (95.0) | 57 (89.1) | 0.371 |
| Drug eluting stent use | 57 (67.9) | 14 (70.0) | 43 (67.2) | 0.932 |
| Total no. of stent | 1.3 ± 0.6 | 1.4 ± 0.5 | 1.3 ± 0.6 | 0.465 |
| TIMI flow after procedure | 0.616 | |||
| 0 | 3 (3.6) | 1 (5.0) | 2 (3.1) | |
| 1 | 2 (2.4) | 1 (5.0) | 1 (1.6) | |
| 2 | 8 (9.5) | 3 (15.0) | 5 (7.8) | |
| 3 | 71 (84.5) | 15 (75.0) | 56 (87.5) | |
| Glycoprotein IIb/IIIa receptor inhibitor | 6 (7.1) | 0 | 6 (9.4) | 0.171 |
| Intra-aortic balloon pumping | 9 (10.7) | 3 (15.0) | 6 (9.4) | 0.364 |
Values are presented as mean ± SD or number (%).
KAMIR, Korea Acute Myocardial Infarction Registry; KorMI, Korea Working Group on Myocardial Infarction; PCI, percutaneous coronary intervention; TIMI, Thrombolysis in Myocardial Infarction.