Independent prediction of survival by NTproBNP and RV-MMI
| Parameters | HR | 95% CI | P values |
| NTproBNP (≥4140 pg/mL) | 2.61 | 1.48 to 4.59 | 0.001 |
| RV-MMI (≤0.31 mm Hg*%) | 2.90 | 1.37 to 6.17 | 0.006 |
NTproBNP, N-terminal pro-brain natriuretic peptide; RV-MMI, right ventricular myo-mechanical index.