Table 2.
Baseline angiographic and postprocedural characteristics according to final thrombus grade.
| Variables | Low thrombus burden (n=299) | High thrombus burden (n=481) | P Value |
|---|---|---|---|
| Infarct-related artery,% | |||
| LAD | 49.5 | 42.4 | |
| LCx | 18.4 | 24.5 | .070 |
| RCA | 29.8 | 31.8 | |
| Tirofiban administration,% | 68.6 | 42.8 | <.001 |
| Procedure,% | |||
| Direct stenting | 12.4 | 8.9 | |
| PTCA + stenting | 86 | 85.2 | .008 |
| Only PTCA | 1.7 | 5.8 | |
| Postprocedural TIMI flow (≥III)% | 82.1 | 72.9 | .003 |
| IRA-cTFC | 22.1±6.2 | 25.2±21 | .013 |
| TMPG (≥II),% | 75.3 | 58 | <.001 |
| No reflow% | 5.5 | 14.4 | <.001 |
LAD – left anterior descending; LCx – left circumflex; RCA – right coronary artery; LMCA – left main coronary artery; IRA – infarct related artery; PTCA – percutaneous transluminal coronary angioplasty; TIMI – thrombolysis in myocardial infarction; cTFC – corrected TIMI frame count; TMPG – TIMI myocardial perfusion grade; ECG – electrocardiography.