Group A

Group R

Group AR

p-value

MR grade

At discharge

0.3 ± 0.4

0.8 ± 0.9

0.0 ± 0.0

0.07

After 1 year

0.7 ± 1.1

0.7 ± 0.5

0.8 ± 0.3

0.98

MVA (cm²)

At discharge

3.2 ± 0.6

2.9 ± 0.6

3.0 ± 0.6

0.47

After 1 year

2.6 ± 0.4

2.7 ± 0.6

2.4 ± 0.7

0.60

MPG (mmHg)

At discharge

3.1 ± 1.8

3.3 ± 1.1

2.0 ± 1.0

0.43

After 1 year

3.5 ± 1.6

4.2 ± 2.4

4.8 ± 4.0

0.55