Table 3 Summary of comparisons of pre-operative and post-operative differences of maximum/mean pressure values on coapted mitral valve leaflets (MVL) and shear stress on MVL in satisfactory-outcome group (group 1, n = 5) and unsatisfactory-outcome group (group 2, n = 1) obtained from active and passive models

Pressure difference (mmHg)

 Max

4.30 ± 1.88 vs. 0.57 ± 0.36

6.65 vs. 4.39

2.44 ± 1.30 vs. 0.68 ± 0.29

4.05 vs. 2.70

 Mean

2.22 ± 1.03 vs. 0.36 ± 0.16

3.05 vs. 2.02

1.17 ± 0.68 vs. 0.24 ± 0.14

1.79 vs. 1.19

Shear stress (dyn/cm²)

 Max

21.5 ± 4.8 vs. 10.3 ± 3.1

34.6 vs. 37

18.8 ± 2.1 vs. 9.5 ± 3.0

33.5 vs. 35.8

 Mean

6.4 ± 1.8 vs. 3.3 ± 1.3

7.5 vs. 6.7

5.9 ± 1.4 vs. 3.1 ± 1.2

6.9 vs. 6.3