|Age at CMR, yrs||16.0 (1.7–27)|
|Male patients||29 (83)|
|AS and coarctation||6 (17)|
|AS and mitral stenosis||2 (6)|
|AS, mitral stenosis, and coarctation||2 (6)|
|Highest aortic valve peak Doppler gradient, mm Hg||70 (22–110)|
|Prior balloon aortic valvuloplasty||21 (60)|
|Age at first balloon aortic valvuloplasty, yrs||0.2 (0–15)|
|Prior surgical intervention on the aortic valve||16 (46)|
|Age at initial aortic valve procedure, yrs||5.2 (0–19.5)|
Values are median (range) or n (%).
AS = aortic stenosis; CMR = cardiac magnetic resonance.