Table 4. Cardiac magnetic resonance imaging (cMRI) data collected 30 days after reperfused acute myocardial infarction (AMI) in pigs with and without ischemic preconditioning (IPC), induced by 3 times 10 min ischemia/reperfusion.
| cMRI parameter | group IPC-AMI (n = 5) | group AMI (n = 5) | p-value* |
|---|---|---|---|
| LVEF, % (IQR) | 44.02 (42.31–48.75) | 38.60 (37.80–39.80) | 0.016 |
| CO, l/min (IQR) | 3.31 (2.96–3.56) | 3.00 (2.80–3.00) | 0.346 |
| LVEDV, ml (IQR) | 62.29 (59.59–73.74) | 75.60 (75.10–78.30) | 0.117 |
| LVESV, ml (IQR) | 39.97 (30.43–42.75) | 47.00 (46.10–47.10) | 0.047 |
| LV scar tissue, % (IQR) | 5.15 (3.83–8.33) | 16.20 (14.10–17.70) | 0.028 |
| LVM, mg (IQR) | 69.59 (62.09–76.26) | 73.80 (70.40–80.80) | 0.251 |
| Infarction transmurality, % (IQR) | 55.35 (54.83–61.97) | 69.80 (63.50–74.10) | 0.175 |
| MO, % (IQR) | 0.14 (0.08–0.25) | 0.90 (0.50–1.80) | 0.053 |
| RVEF, % (IQR) | 44.35 (32.53–44.81) | 40.70 (39.20–41.50) | 0.917 |
| Segmental contraction velocity of ischemia–affected anterior area | 14.45 (12.63–16.76) | 12.24 (9.98–14.68) | 0.044 |
| Remote anterior area | 22.54 (20.39–23.97) | 20.12 (18.77–23.55) | 0.086 |
AMI was induced 26 h after IPC (group IPC-AMI) or sham-IPC procedure (group AMI). Data are given in median and interquartile ranges (IQR).
Fonts in bold indicate statistical significance (p < 0.05). *p-values were calculated by the Mann-Whitney-U-test.
LVEF indicates left ventricular ejection fraction; CO, cardiac output; LVEDV, left ventricular end-diastolic volume; LVESV, left ventricular end-systolic volume; LV, left ventricle; LVM, left ventricular mass; MO, microvascular obstruction; RVEF, right ventricular ejection fraction.