Table 3.
Angiographic and Procedural Characteristics of Study Population According to TIMI Flow.
| Variable | Normal-reflow (n = 515) | No-reflow (n = 97) | P |
|---|---|---|---|
| Time from symptom onset to PPCI | .227 | ||
| <3 hours | 145 (28.3%) | 22 (22.7%) | |
| 3-6 hours | 198 (38.4%) | 31 (31.8%) | |
| 6-12 hours | 171 (33.3%) | 44 (45.5%) | |
| Infarct-related coronary artery | .748 | ||
| Left main | 2 (0.4%) | 0 (0.0%) | |
| Left anterior descending | 274 (53.2%) | 50 (51.5%) | |
| Left circumflex | 57 (11.0%) | 15 (15.1%) | |
| Right coronary artery | 182 (35.4%) | 32 (33.4%) | |
| Multi-vessel disease | 435 (84.4%) | 69 (71.2%) | .225 |
| Proximal lesion | 291 (56.6%) | 46 (47.0%) | .365 |
| Preintervention TIMI flow grade | .548 | ||
| 0 | 470 (91.3%) | 82 (84.5%) | |
| 1 | 24 (4.6%) | 9 (9.3%) | |
| 2 | 15 (2.9%) | 5 (5.2%) | |
| 3 | 6 (1.2%) | 1 (1.0%) | |
| Thrombus burden | .000 | ||
| Low thrombus burden | 365 (70.8%) | 40 (41.2%) | |
| High thrombus burden | 150 (29.2%) | 57 (58.8%) | |
| Number of used stent, n | 1.59 (0.70) | 1.41 (0.94) | .149 |
| Stent length, mm | 36.18 (18.21) | 37.75 (20.53) | .618 |
| Stent diameter, mm | 3.08 (0.46) | 3.16 (0.44) | .310 |
| Use of thrombus aspiration | 116 (22.5%) | 44 (45.5%) | .000 |
| Tirofiban use | 284 (55.2%) | 81 (83.3%) | .000 |
Abbreviations: PPCI, primary percutaneous coronary intervention; TIMI, thrombolysis in myocardial infarction.