Table II.
Lesions and procedural characteristics
| Parameter | DS (n = 202) | CS (n = 414) | P-value |
|---|---|---|---|
| Culprit artery: | |||
| Left anterior descending | 60 (29.8) | 139 (33.5) | 0.165 |
| Left circumflex | 15 (7.4) | 69 (16.7) | |
| Right coronary | 113 (55.9) | 158 (38.2) | |
| Other | 14 (6.9) | 48 (11.6) | |
| Procedural complication: | 15 (7.5) | 61 (14.7) | 0.010 |
| Edge dissection | 7 (3.0) | 27 (6.5) | 0.038 |
| No reflow | 8 (4.5) | 34 (8.2) | 0.059 |
| Procedural characteristics: | |||
| Post-dilation | 27 (13.4) | 48 (11.6) | 0.528 |
| Aspiration thrombectomy | 12 (5.9) | 23 (5.6) | 0.847 |
| Stent length, mean ± SD [mm] | 18.67 ±5.93 | 20.85 ±6.17 | 0.001 |
| Stent diameter, mean ± SD [mm] | 2.48 ±0.10 | 2.46 ±0.14 | 0.050 |
| Procedure time, mean ± SD [min] | 43.5 ±12.6 | 47.7 ±15.2 | < 0.001 |
| Fluoroscopy time, mean ± SD [min] | 9.7 ±4.4 | 11.7 ±5.7 | < 0.001 |
| Contrast volume, mean ± SD [ml] | 128.8 ±52.6 | 151.3 ±83.7 | < 0.001 |
| Postprocedural TIMI flow III, n (%) | 190 (94.1) | 371 (89.6) | 0.048 |
| Lesion location: | |||
| Proximal | 63 (31.1) | 153 (37.0) | 0.586 |
| Mid | 111 (55.0) | 193 (46.6) | |
| Distal | 28 (13.9) | 68 (16.4) | |
| Additional stent, n (%) | 42 (20.8) | 89 (21.5) | 0.841 |
| Multivessel disease, n (%) | 27 (13.4) | 39 (9.4) | 0.137 |
| Calcific lesion, n (%) | 27 (13.4) | 65 (15.7) | 0.446 |
| Thrombus burden: | |||
| Low thrombus burden | 146 (72.3) | 302 (72.9) | 0.847 |
| High thrombus burden | 56 (27.7) | 112 (27.1) | |
Data are presented as mean ± standard deviation or number (%). DS – direct stenting, CS – conventional stenting, TIMI – thrombolysis in myocardial infarction.