Table 2.
Baseline CMR characteristics of patients in all patients, ‘non-significant’ and ‘significant’ MR groups
| All patients | Non-significant MR (n = 43) | Significant MR (n = 42) | p value | |
|---|---|---|---|---|
| LV mass (g) | 138.2 ± 35.3 | 127.5 ± 31 | 149 ± 32.9 | 0.007 |
| LV mass index (g/m2) | 76.1 ± 18.3 | 73.5 ± 16.5 | 83.3 ± 23.3 | 0.01 |
| LVEDV (ml) | 179 ± 49.3 | 170 ± 44.2 | 183 ± 45.3 | 0.33 |
| LVESV (ml) | 84.2 ± 43.5 | 86.7 ± 50.8 | 81.7 ± 34.9 | 0.59 |
| LVEF (%) | 54.8 ± 12.2 | 52.5 ± 13.3 | 56.3 ± 11 | 0.14 |
| RVEDV (ml) | 139.9 ± 36.0 | 135.6 ± 32.1 | 144.3 ± 39.5 | 0.27 |
| RVEF (%) | 54.2 ± 9.5 | 53.5 ± 10.7 | 55.0 ± 8.8 | 0.46 |
| LA volume (ml) | 131.8 ± 45.0 | 130.9 ± 51.4 | 132.8 ± 38.1 | 0.85 |
| LA volume index (ml/m2) | 72.8 ± 24.9 | 73.0 ± 28.8 | 72.6 ± 20.7 | 0.94 |
| MR volume (ml) | 22.4 ± 15.0 | 10.3 ± 8.1 | 34.5 ± 9.9 | < 0.001 |
| MR fraction (%) | 22.6 ± 13.3 | 11.4 ± 9.0 | 34.2 ± 5.5 | < 0.001 |
| Classifications of LGE, n (%) | ||||
| None | 24 (28) | 15 (35) | 9 (21) | |
| Infarct pattern | 19 (22) | 10 (23) | 9 (21) | |
| Non-infarct pattern | 33 (39) | 14 (33) | 19 (45) | |
| Mixed | 4 (5) | 2 (5) | 2 (5) | |
| Not done | 5 (6) | 2 (5) | 3 (7) | |
| Presence of LGE n, (%) | ||||
| LGE present | 56 (66) | 15 (35) | 9 (21) | 0.188 |
| LGE absent | 24 (28) | 26 (60) | 30 (71) | |
| LGE not done | 5 (6) | 2 (5) | 3 (7) | |
Data as mean ± SD, n (%)
LA left atrial, LGE late gadolinium enhancement, LVEDV left ventricular end-diastolic volume, LVEF left ventricular ejection fraction, LVESV left ventricular end-systolic volume, LVSV left ventricular stroke volume, MR mitral regurgitation, RVEDV right ventricular end diastolic volume, RVEF right ventricular ejection fraction