Variable

Pre-operative mean

Post-operative mean

P value

Ejection Fraction (EF)

50.8 ± 8.2

54.7 ± 12.5

P = 0.06

Mean aortic gradient

44.8 ± 12.5

11.8 ± 9.5

p < 0.001

Maximum aortic gradient

72.5 ± 18.5

22.7 ± 16.9

p < 0.001

Heart failure class

P = 0.002⁺; V = 66