Table 3. Correlations of left atrial strain parameters.
| Variables | Number | Reservoir | Conduit | Pump |
|---|---|---|---|---|
| Left atrial volume | 50 | 0.01 | 0.18 | -0.3* |
| LV EDV | 50 | 0.05 | 0.27 | -0.35* |
| LV Mass | 50 | -0.02 | 0.06 | -0.15 |
| LV volume/mass | 50 | -0.1 | -0.16 | 0.05 |
| LV stroke volume | 50 | 0.08 | 0.3* | -0.36* |
| E/E’ average | 44 | -0.24 | -0.19 | -0.21 |
| E’ average | 44 | 0.52*** | 0.69*** | 0.13 |
| A’ average | 43 | 0.4** | 0.15 | 0.64*** |
| IVRT | 39 | -0.16 | -0.26 | 0.06 |
| A wave transit time | 48 | 0.39* | 0.1 | 0.67*** |
| Pulmonary vein A reversal velocity | 33 | -0.28 | -0.22 | -0.25 |
| Ar-A duration | 34 | -0.51** | -0.36* | -0.77** |
| PA systolic pressure | 19 | -0.28 | -0.24 | -0.28 |
| PA diastolic pressure | 12 | -0.42 | -0.14 | -0.51 |
| LA ejection force | 49 | 0.14 | -0.01 | 0.49*** |
| LV GLS | 49 | 0.33* | 0.3* | 0.32* |
| ECV | 40 | -0.29 | -0.39* | -0.03 |
| scar mass | 50 | -0.04 | -0.01 | -0.07 |
LV = left ventricle, EDV = end-diastolic volume, IVRT = isovolumic relaxation time, PA = pulmonary artery, LA = left atrium, GLS = global longitudinal strain, ECV = extracellular volume fraction.
*<0.05
**<0.01
***<0.001