TABLE 6.
Correlations between mitral regurgitation (MR) and dyssynchrony variables at rest and during exercise
MR variable | Δ SPWMD (ms) | ΔAorto- pulmonary outflow delay (ms) | ΔLongitudinal IV delay (ms) | ΔLongitudinal VV delay (ms) |
---|---|---|---|---|
Rest | ||||
ΔMR EROA (cm2) | 0.40* | 0.52* | 0.27 | 0.23 |
ΔMR flow rate (mL/s) | 0.33** | 0.38* | 0.27 | 0.23 |
ΔMR regurgitant volume (mL) | 0.32 | 0.59* | 0.52* | 0.34* |
ΔMR jet area (cm2) | 0.42* | 0.51* | 0.16 | 0.01 |
Exercise | ||||
ΔMR EROA (cm2) | 0.38* | 0.45* | 0.17 | 0.31* |
ΔMR flow rate (mL/s) | 0.36* | 0.38* | 0.35* | 0.31* |
ΔMR regurgitant volume (mL) | 0.39* | 0.40* | 0.20 | 0.49* |
ΔMR jet area (cm2) | 0.50* | 0.41* | 0.35* | 0.40* |
Data are presented as r values. EROA Effective regurgitant orifice area; IV Intraventricular; SPWMD Septal to posterior wall motion delay; VV Interventricular.
P<0.05;
P<0.02