Table 2.
Correlation between left ventricular stiffness and indices of left and right ventricular function.
| Diastolic wall strain | Stiffness index | |||||||
|---|---|---|---|---|---|---|---|---|
| Univariate correlation | Multiple regression | Univariate correlation | Multiple regression | |||||
| r | p | beta | p | r | p | beta | p | |
| Mitral inflow Doppler indices | ||||||||
| E | −0.04 | 0.66 | 0.55 | <0.001* | 0.02 | 0.57 | ||
| A | 0.07 | 0.36 | 0.13 | 0.10 | ||||
| E/A ratio | −0.08 | 0.32 | 0.34 | <0.001* | −0.01 | 0.57 | ||
| E deceleration time | −0.05 | 0.56 | 0.09 | 0.28 | ||||
| Mitral annular tissue Doppler | ||||||||
| e | 0.31 | <0.001* | −0.03 | 0.78 | −0.60 | <0.001* | 0.03 | 0.52 |
| a | 0.16 | 0.045* | 0.05 | 0.54 | −0.30 | <0.001* | −0.04 | 0.26 |
| e/a | 0.10 | 0.22 | −0.19 | 0.02* | −0.05 | 0.15 | ||
| E/e ratio | −0.30 | <0.001* | −0.26 | 0.008* | 0.90 | <0.001* | 0.80 | <0.001* |
| LV longitudinal diastolic deformation | ||||||||
| SRe | 0.33 | <0.001* | 0.16 | 0.11 | 0.02 | 0.83 | ||
| SRa | 0.20 | 0.01* | 0.01 | 0.90 | −0.13 | 0.11 | ||
| 2D echocardiographic measurements | ||||||||
| Indexed RV EDA | −0.31 | <0.001* | −0.20 | 0.02* | 0.32 | <0.001* | 0.43 | 0.004* |
| RV FAC | 0.24 | 0.003* | 0.18 | 0.01* | 0.01 | 0.88 | ||
| LVEDd | 0.11 | 0.16 | −0.64 | <0.001* | −0.40 | <0.001* | ||
Abbreviation as in Table 1. *Statistically significant.