Table 2.
Laboratory and echocardiographic parameters of patients with ST-elevation myocardial infarction, categorized by percutaneous coronary intervention technique.
| Parameters | Overall (n = 210) | Direct stenting (n = 98) | Balloon pre-dilatation stenting (n = 112) | P-value |
|---|---|---|---|---|
| Laboratory test | ||||
| Hemoglobin (g/l) | 136.0 [119.0, 148.0] | 137.0 [121.0, 146.8] | 135.0 [118.0, 148.3] | 0.631 |
| White blood cell count (109/l) | 9.86 [8.22, 12.09] | 9.78 [8.09, 12.07] | 10.05 [8.38, 12.10] | 0.742 |
| Platelets (× 109/l) | 240.5 [204.0, 273.0] | 242.0 [212.5, 273.8] | 240.0 [200.0, 271.5] | 0.635 |
| Total cholesterol (mmol/l) | 4.64 [3.75, 5.79] | 5.06 [4.07, 6.01] | 4.43 [3.60, 5.57] | 0.035 |
| Low-density lipoprotein (mmol/l) | 3.26 [2.37, 4.31] | 3.51 [2.66, 4.46] | 3.17 [2.23, 4.08] | 0.047 |
| High-density lipoprotein (mmol/l) | 1.12 [0.92, 1.35] | 1.11 [0.94, 1.36] | 1.13 [0.91, 1.32] | 0.568 |
| Triglycerides (mmol/l) | 1.16 [0.82, 1.65] | 1.11 [0.82, 1.72] | 1.17 [0.85, 1.57] | 0.896 |
| Creatinine clearance (mL/min) | 39.5 [34.95, 47.5] | 40.45 [35.28, 48.68] | 38.20 [34.80, 47.10] | 0.121 |
| Basal troponin I (µg/l) | 2.19 [0.81, 3.71] | 2.22 [0.96, 3.89] | 2.18 [0.76, 3.29] | 0.427 |
| Peak troponin I (µg/l) | 45.0 [27.0, 64.0] | 42.0 [26.25, 67.75] | 46.0 [28.0, 62.0] | 0.830 |
| High-sensitivity C-reactive protein (mg/l) | 3.80 [1.85, 10.52] | 4.22 [1.85, 10.06] | 3.66 [1.94, 10.77] | 0.872 |
| Echocardiographic parameters | ||||
| Post-PCI left ventricular ejection fraction (%) | 40.0 [36.25, 45.75] | 42.0 [38.5, 45.0] | 40.0 [35.75, 46.25] | 0.913 |
| 12-month left ventricular ejection fraction (%) | 45.0 [40.0, 50.0] | 48.0 [40.0, 55.0] | 45.0 [35.0, 50.0] | 0.003 |
CMD coronary microvascular dysfunction, PCI percutaneous coronary intervention.