NPPB and aortic valve stenosis: TAVI: transcatheter aortic valve implantation; IQR: interquartile range; SBP: systolic blood pressure; DBP: diastolic blood pressure; HR: heart rate; O2 Sat: oxygen saturation; BNP: B-type natriuretic peptide; TropI: troponin; RV: right ventricle; AS: aortic valve stenosis; RVSP: right ventricular systolic pressure; AV: aortic valve, STS: the Society of Thoracic Surgeons