Table 2.
Late gadolinium enhancement cardiac magnetic resonance derived substrate parameters in the study population (n = 126)
| STEMI-patients with subsequent ventricular arrhythmia, n = 21 | STEMI-patients without subsequent ventricular arrhythmia, n = 105 | P-value | |
|---|---|---|---|
| LV mass, mL | 131.0 ± 25.1 | 124.0 ± 28.7 | 0.65 |
| LVEDV, mL | 192.0 ± 50.0 | 179.0 ± 38.9 | 0.78 |
| LVESV, mL | 94.0 ± 40.4 | 76.0 ± 28.6 | 0.12 |
| LVEF, % | 51.0 ± 11.6 | 55.5 ± 8.5 | 0.10 |
| ȃLVEF ≤35%, n (%) | 2 (10) | 2 (2) | 0.07 |
| Location LGE tissue, n (%): | 0.79 | ||
| ȃInferior | 10 (47) | 56 (53) | |
| ȃAnterior | 7 (33) | 26 (25) | |
| ȃLateral | 2 (10) | 8 (8) | |
| ȃSeptal | 2 (10) | 10 (9) | |
| ȃApical | 5 (5) | ||
| Scar mass, g | 23.6 ± 17.4 | 16.0 ± 9.9 | 0.001 |
| Core mass, g | 7.1 ± 7.7 | 4.6 ± 4.8 | 0.01 |
| BZ mass, g | 17.2 ± 10.3 | 10.3 ± 6.0 | 0.0002 |
| Presence BZc, n (%) | 17 (80) | 44 (42) | 0.001 |
| Number of BZc | 2.0 ± 1.4 | 2.0 ± 1.1 | 0.26 |
| Layer location BZc, n (%): | 0.53 | ||
| ȃEndocardial | 10 (65) | 24 (55) | |
| ȃEpicardial | 2 (12) | 3 (7) | |
| ȃBoth | 4 (23) | 17 (38) | |
| Location BZc, n (%): | 0.84 | ||
| ȃInferior | 8 (50) | 26 (59) | |
| ȃAnterior | 6 (38) | 13 (30) | |
| ȃLateral | 2 (13) | 3 (7) | |
| ȃSeptal | 1 (6) | 2 (5) |
Data are presented as mean ± standard deviation for continuous variables and number and percentages for categorical variables. Missing: LVEF (1%); LVEDV (1%); LVESV (1%).
BZc, border zone channels; IQR, interquartile range; LGE, late gadolinium enhancement; LV, left ventricular; LVEDV, left ventricular end-diastolic volume; LVESV, left ventricular end-systolic volume; LVEF, left ventricular ejection fraction; STEMI, ST-segment elevation myocardial infarction.