Table 1.
Baseline patient characteristics of all patients as well as those with and without MACE
| All patients (n = 200) | No MACE (n = 180) | MACE (n = 20) | P-value | |
|---|---|---|---|---|
| Age, years | 56 ± 11 | 56 ± 11 | 57 ± 14 | 0.959 |
| Female Gender, n (%) | 31 (15.5) | 28 (15.6) | 3 (15.0) | 0.948 |
| Body mass index, kg/m2 | 26 ± 3 | 26 ± 3 | 25 ± 4 | 0.262 |
| Cardiovascular risk factors | ||||
| Hypertension, n (%) | 118 (59) | 106 (59) | 12 (60) | 0.924 |
| Diabetes mellitus, n (%) | 18 (9) | 14 (8) | 4 (20) | 0.070 |
| Current smoker, n (%) | 106 (53) | 94 (52) | 12 (60) | 0.509 |
| Hypercholesterolemia, n (%) | 132 (66) | 118 (66) | 14 (70) | 0.691 |
| Family history for AMI, n (%) | 49 (25) | 46 (26) | 3 (15) | 0.298 |
| Pain-to-balloon time, minutes | 192 (128–276) | 193 (128–296) | 178 (130–249) | 0.556 |
| Time from STEMI to CMR, days | 2 (2–4) | 2 (2–4) | 2 (2–4) | 0.893 |
| Infarct-related artery | 0.295 | |||
| Right coronary artery, n (%) | 93 (46) | 87 (48) | 6 (30) | |
| Left anterior descending artery, n (%) | 83 (42) | 72 (40) | 11 (55) | |
| Left circumflex coronary artery, n (%) | 24 (12) | 21 (12) | 3 (15) | |
| Number of diseased vessels | 0.074 | |||
| 1, n (%) | 118 (60) | 106 (60) | 12 (60) | |
| 2, n (%) | 56 (29) | 53 (30) | 3 (15) | |
| 3, n (%) | 22 (11) | 17 (10) | 5 (25) | |
| Peak CK, U/L | 1906 (1041–3309) | 1840 (988–3100) | 3416 (1259–7522) | 0.033 |
| CMR variables | ||||
| LV mass index, g/m² | 71 (62–80) | 70 (62–80) | 76 (67–89) | 0.072 |
| Infarct mass, % of MM | 14 (6–23) | 13 (6–22) | 18 (7–29) | 0.261 |
| Microvascular obstruction, n (%) | 113 (56) | 96 (53) | 17 (85) | 0.007 |
| LVEDV, mL | 154 (127–172) | 153 (127–170) | 164 (116–179) | 0.460 |
| LVESV, mL | 72 (53–90) | 70 (52–83) | 92 (66–110) | 0.014 |
| LVEF, % | 53 (46–59) | 54 (47–59) | 44 (37–51) | <0.001 |
| LVGFI, % | 32 (28–37) | 33 (28–38) | 27 (21–29) | 0.001 |
MACE, major adverse cardiac events; AMI, acute myocardial infarction; STEMI, ST-segment elevation myocardial infarction; CMR, cardiovascular magnetic resonance imaging; CK, creatine kinase; LV, left ventricular; MM, myocardial mass; LVEDV, left ventricular end-diastolic volume; LVESV, left ventricular end-systolic volume; LVEF, left ventricular ejection fraction; LVGFI, left ventricular global function index.
Significant differences (P ≤ 0.05) are highlighted in bold.