Table 1

 Baseline characteristics of all patients according to therapeutic strategy

Conservative treatmentAortic valve replacementp Value
Values are expressed as number (%), mean (SD) or median (interquartile range).
LVMI, left ventricular mass index; NT-proBNP, N-terminal pro-B-type natriuretic peptide; NYHA, New York Heart Association.
Number57102
Women29 (51%)50 (50%)0.822
Age (years)69 (13)69 (10)0.971
NYHA class
    I2212
    II2634<0.001
    III741
    IV215
Atrial fibrillation6 (11%)15 (15%)0.455
Coronary artery disease19 (33%)30 (29%)0.608
Creatinine (μmol/l)84 (17)80 (19)0.265
Body mass index (kg/m2)28.4 (3.2)27.3 (3.6)0.073
Ejection fraction (%)59 (4)56 (9)0.022
LVMI (g/m2)118 (38)140 (37)0.002
Mean pressure gradient (mm Hg)32 (21)60 (17)<0.001
Aortic valve area (cm2)0.96 (0.33)0.69 (0.17)<0.001
NT-proBNP (pg/ml)
    Baseline423 (163–1145)832 (364–2752)0.001
(n = 57)(n = 102)
    First follow up456 (166–1664)501 (229–892)0.940
(n = 39)(n = 70)
    Second follow up498 (165–1918)493 (225–996)0.842
(n = 40)(n = 83)