Indices of RV function | SVI reserve | Ees reserve | dP/dtmax reserve | |||
R2 | p-value | R2 | p-value | R2 | p-value | |
TAPSE | 0.462 | 0.001 | 0.172 | 0.078 | 0.296 | 0.018 |
RVMPI | 0.560 | <0.001 | 0.313 | 0.013 | 0.462 | 0.001 |
RVFAC | 0.699 | <0.001 | 0.316 | 0.012 | 0.573 | <0.001 |
Associations were approximated using a linear approach. Statistical significance was set at p<0.05. SVI: stroke volume index; Ees: end-systolic elastance; dP/dtmax: maximum rate of rise of RV pressure; TAPSE: tricuspid annular plane systolic excursion; RVMPI: RV myocardial performance index; RVFAC: RV fractional area change.