Discharge mean gradient	Discharge peak gradient	Follow-up mean gradient	Follow-up peak gradient
Melody (n = 181)	11.7 ± 6.5	22.7 ± 11.4	12.2 ± 7.3	21.6 ± 12.9
SAPIEN (n = 65)	10.6 ± 6.1	20.4 ± 11.0	10.1 ± 5.5	18.8 ± 9.4
P	0.26	0.19	0.12	0.30
Melody nRVOT (n = 30)	7.8 ± 3.7	15.6 ± 6.5	12.0 ± 10	20.9 ± 18.4
Melody Conduit (n = 151)	12.5 ± 6.7	24.0 ± 11.6	12.2 ± 6.9	21.8 ± 11.7
P	0.001	0.001	0.29	0.16
SAPIEN nRVOT (n = 26)	6.5 ± 3.8	12.5 ± 7.7	6.7 ± 4.2	12.5 ± 6.9
SAPIEN Conduit (n = 39)	13.3 ± 5.8	25.5 ± 9.7	12.0 ± 5.3	22.4 ± 8.8
P	0.001	0.001	0.001	0.001

Mean and peak gradient in mmHg.