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Table 2 Echocardiographic parameters before and after surgery
| NSR (n = 361) | AF (n = 81) | p | |
|---|---|---|---|
| Before surgery | |||
| LV end diastolic dimension (mm) | 56.6 ± 10.8 | 55.0 ± 10.9 | 0.375 |
| LV end systolic dimension (mm) | 38.4 ± 9.2 | 38.7 ± 9.9 | 0.863 |
| LV ejection fraction (%) | 62.7 ± 10.0 | 58.9 ± 14.1 | 0.026 |
| LA antero-posterior dimension (AP) (mm) | 50.7 ± 8.7 | 53.1 ± 6.9 | 0.080 |
| LA medio-lateral dimension (ML) (mm) | 56.2 ± 10.6 | 58.6 ± 9.9 | 0.339 |
| LA supero-inferior dimension (SI) (mm) | 62.4 ± 9.7 | 60.4 ± 9.1 | 0.372 |
| LA volume index (ml/m2)a | 58.4 ± 24.9 | 62.9 ± 22.8 | 0.399 |
| TR grade | 0.4 ± 0.8 | 1.2 ± 1.1 | 0.005 |
| Estimated PAP | 39.2 ± 17.5 | 44.5 ± 18.4 | 0.252 |
| After surgery | |||
| LV end diastolic dimension (mm) | 48.9 ± 5.3 | 50.1 ± 8.9 | 0.126 |
| LV end systolic dimension (mm) | 33.8 ± 5.8 | 35.9 ± 10.8 | 0.015 |
| LV ejection fraction (%) | 60.9 ± 9.5 | 57.2 ± 13.8 | 0.006 |
| LA AP dimension (mm) | 42.9 ± 6.0 | 50.7 ± 8.1 | < .001 |
| LA ML dimension (mm) | 50.3 ± 6.8 | 56.3 ± 7.5 | < .001 |
| LA SI dimension (mm) | 57.3 ± 27.5 | 61.8 ± 8.2 | 0.172 |
| LA AP change (mm) | 7.7 ± 8.4 | 4.1 ± 7.9 | 0.011 |
| LA ML change (mm) | 6.7 ± 10.4 | 3.4 ± 10.1 | 0.197 |
| LA SI change (mm) | 7.4 ± 9.0 | 1.3 ± 8.3 | 0.005 |
| LA volume index (ml/m2) | 37.9 ± 12.6 | 52.1 ± 15.6 | < .001 |
| LA volume change (ml/m2) | 20.5 ± 21.3 | 10.8 ± 23.4 | 0.041 |
| LA volume change % | 28.1 ± 27.9 | 9.5 ± 36.8 | < .001 |
| MDPG of the MV (mmHg) | 3.5 ± 1.4 | 3.9 ± 1.5 | 0.023 |
| Residual mitral regurgitation | 0.337 | ||
| No | 352 (97.5%) | 77 (95.1%) | |
| Trivial | 8 (2.2%) | 3 (3.7%) | |
| More than grade I | 1 (0.3%) | 1 (1.2%) | |
| TR grade | 0.3 ± 0.6 | 1.0 ± 1.0 | < 0.001 |
| Estimated PAP | 26.4 ± 6.6 | 29.8 ± 7.1 | 0.001 |
| TAP or TVR | 33 (7.5%) | 6 (1.4%) | 0.828 |
