Table 2. Subgroup analysis of STEMI and NSTEMI in patients with AMI and prior CABG.
| Variable | STEMI (n=48) | NSTEMI (n=30) | P |
|---|---|---|---|
| Serum creatinine, μmol/L, mean ± SD | 107.1±75.9 | 97.2±51.9 | 0.83 |
| Cardiogenic shock, n (%) | 10 (20.8) | 6 (20.0) | 0.93 |
| Prior MI, n (%) | 18 (37.5) | 8 (26.7) | 0.32 |
| cTnI, ng/mL, median (IQR) | 20.2 (9.0–245.0) | 6.7 (1.0–140.0) | <0.001 |
| BNP, pg/mL, median (IQR) | 1,263.0 (68.0–35,000.0) | 402.0 (35.0–4,201.0) | 0.002 |
| LVEF, %, mean ± SD | 43.4±14.9 | 46.0±12.7 | 0.34 |
| Time since last coronary artery bypass grafting, months, mean ± SD | 123.5±64.0 | 100.8±70.5 | 0.53 |
| Onset to balloon time, hours, mean ± SD | 9.1±10.1 | 38.5±28.4 | <0.001 |
| PCI success rate, n (%) | 37 (77.1) | 16 (56.7) | 0.05 |
| Culprit recognition, n (%) | 42 (87.5) | 17 (56.7) | 0.002 |
| In-hospital death, n (%) | 6 (12.5) | 3 (10.0) | 0.73 |
STEMI, ST-elevation myocardial infarction; NSTEMI, non-ST-elevation myocardial infarction; AMI, acute myocardial infarction; CABG, coronary artery bypass grafting; cTnI, cardiac troponin I; BNP, B-type brain peptide; LVEF, left ventricular ejection fraction; PCI, percutaneous coronary intervention; MI, myocardial infarction; SD, standard deviation; IQR, interquartile range.