Table 1 Comparison of LA strain (ε) and strain rate (SR) parameters MR population and controls
| Â | Â | Controls (n = 10) | Mild MR (n = 10) | Moderate MR (n = 10) | P value |
|---|---|---|---|---|---|
Left atrial function | Left atrial strain (%) | Â | Â | Â | Â |
Reservoir | εs | 25.0 (8.1) | 34.1 (6.6) | 25.7 (6.7) | 0.009 |
Conduit | εe | 12.6 (5.7) | 18.1 (3.8) | 13.8 (5.5) | 0.026 |
Booster pump | εa | 12.3 (3.2) | 16.0 (4.7) | 11.8 (3.7) | 0.041 |
| Â | Left atrial strain rate (s-1) | Â | Â | Â | Â |
Reservoir | SRs | 1.1 (0.2) | 1.2 (0.1) | 1.0 (0.2) | 0.093 |
Conduit | SRe | -0.5 (0.2) | -0.7 (0.1) | -0.6 (0.2) | 0.104 |
Booster pump | SRa | -1.0 (0.2) | -1.1 (0.4) | -0.9 (0.3) | 0.738 |