NPPB and atrial fibrillation: The following predictors of 2-year mortality could be identified by multivariate analysis: age, sex, AS subtype other than high-gradient, atrial fibrillation, and renal function in the cluster of baseline_static; relevant TR, PAPsys, and SMWD in the cluster of baseline_dynamic; CFS and PAPsys in the cluster of 6- to 8-week follow-up; and BNP and MR in the cluster 6 months follow-up.