Table 1.
(a) Comparison of basic clinical parameters between patient groups according to stent type (DES vs. BMS vs. BVS). (b) Comparison of procedural parameters between patient groups according to stent type (DES vs. BMS vs. BVS).
| (a) | |||||
| Stent | p-Value | ||||
| DES (n = 749) | BMS (n = 296) | BVS (n = 66) | |||
| Type of acute coronary syndrome | |||||
| ST elevations | 694 (92.7%) | 270 (91.2%) | 64 (97.0%) | 0.287 | |
| LBBB | 7 (0.9%) | 10 (3.4%) | 1 (1.5%) | 0.019 | |
| RBBB | 16 (2.1%) | 4 (1.4%) | 1 (1.5%) | 0.858 | |
| Without ST elevations | 40 (5.3%) | 14 (4.7%) | 1 (1.5%) | 0.452 | |
| Basic characteristics | |||||
| Gender—male | 574 (76.6%) | 223 (75.3%) | 45 (68.2%) | 0.292 | |
| Age | 61.7 (42.9; 78.1) | 62.7 (46.7; 81.5) | 56.9 (40.8; 71.9) | <0.001 | |
| BMI | 27.8 (22.3; 36.1) | 28.3 (22.7; 36.3) | 26.4 (21.2; 35.9) | 0.022 | |
| Laboratory results | |||||
| Hemoglobin | 144.0 (120; 167.0) | 144.0 (118.0;170.0) | 144.0 (118.0;170.0) | 0.510 | |
| Urea | 5.2 (3.1; 9.0) | 5.4 (3.4; 9.7) | 4.9 (2.7; 8.4) | 0.011 | |
| Creatinine | 82.0 (55.0; 124.0) | 85.0 (54.0; 136.0) | 73.0 (47.0; 106.0) | <0.001 | |
| Risk factors and comorbidities | |||||
| Hyperlipidemia | 269 (35.9%) | 93 (31.4%) | 15 (22.7%) | 0.052 | |
| Obesity | 155 (20.7%) | 53 (17.9%) | 6 (9.1%) | 0.050 | |
| Arterial hypertension | 369 (49.3%) | 164 (55.4%) | 33 (50.0%) | 0.198 | |
| Smoking | 485 (64.8%) | 179 (60.5%) | 52 (78.8%) | 0.016 | |
| Diabetes mellitus | 157 (21.0%) | 62 (20.9%) | 9 (13.6%) | 0.387 | |
| Condition after MI | 52 (6.9%) | 21 (7.1%) | 3 (4.5%) | 0.824 | |
| Condition after PCI | 47 (6.3%) | 16 (5.4%) | 3 (4.5%) | 0.840 | |
| Condition after CABG | 7 (0.9%) | 4 (1.4%) | 1 (1.5%) | 0.506 | |
| Chronic heart failure | 7 (0.9%) | 3 (1.0%) | 0 (0.0%) | 0.999 | |
| Chronic renal failure | 8 (1.1%) | 6 (2.0%) | 0 (0.0%) | 0.380 | |
| Bleeding | 2 (0.3%) | 1 (0.3%) | 0 (0.0%) | 0.999 | |
| Peripheral artery disease | 29 (3.9%) | 4 (1.4%) | 1 (1.5%) | 0.078 | |
| Killip class | 1 | 667 (89.1%) | 253 (85.5%) | 64 (97.0%) | 0.041 |
| 2 | 50 (6.7%) | 19 (6.4%) | 2 (3.0%) | ||
| 3 | 11 (1.5%) | 4 (1.4%) | 0 (0.0%) | ||
| 4 | 21 (2.8%) | 20 (6.8%) | 0 (0.0%) | ||
| (b) | |||||
| Parameter | Option | Stent | p-Value | ||
| DES (n = 749) | BMS (n = 296) | BVS (n = 66) | |||
| Coronarography and primary PCI | |||||
| TIMI flow in culprit artery after pPCI | 3 | 723 (67.3%) | 286 (26.6%) | 66 (6.1%) | 0.378 |
| <3 | 26 (72.2%) | 10 (27.8%) | 0 (0.0%) | ||
| Number of diseased coronary arteries | 1 | 381 (68.6%) | 141 (25.4%) | 33 (5.9%) | 0.643 |
| >1 | 368 (66.2%) | 155 (27.9%) | 33 (5.9%) | ||
| Left main stenosis ≥50% | Yes | 17 (50.0%) | 16 (47.1%) | 1 (2.9%) | 0.036 |
| Left main stenosis as culprit lesion | Yes | 4 (36.4%) | 7 (63.6%) | 0 (0.0%) | 0.035 |
| LAD | Yes | 332 (74.3%) | 86 (19.2%) | 29 (6.5%) | <0.001 |
| LAD and Diagonal artery | Yes | 43 (70.5%) | 15 (24.6%) | 3 (4.9%) | 0.948 |
| LCx | Yes | 80 (65.6%) | 37 (30.3%) | 5 (4.1%) | 0.521 |
| LCx and OM | Yes | 48 (63.2%) | 26 (34.2%) | 2 (2.6%) | 0.207 |
| RCA | Yes | 288 (62.9%) | 142 (31.0%) | 28 (6.1%) | 0.018 |
| Result of pPCI | Optimal | 732 (67.7%) | 284 (26.3%) | 65 (6.0%) | 0.257 |
| Suboptimal or unsuccessful | 17 (56.7%) | 12 (40.0%) | 1 (3.3%) | ||
Absolute and relative frequencies were used for categorical variables. Statistical significance of differences between patient groups were tested using Fisher’s exact test. Continuous parameters were described by median (5th; 95th percentile), and statistical significance of differences between patient groups were tested using the Kruskal-Wallis test. LBBB—left bundle branch block, RBBB—right bundle branch block, BMI—body mass index. Categorical parameters are expressed as absolute numbers (percentage of total) and compared using Fisher’s exact test. pPCI -primary PCI, LAD—left anterior descending artery, LCx—left circumflex artery, OM—obtuse marginal artery, RCA—right coronary artery.