Parameter Preoperatively Postoperatively P-value
LVOT peak gradient (mmHg) 91.76 ± 25.08 14.78 ± 14.01 <0.0005
Mean MR level 1.35 ± 0.97 0.46 ± 0.52 <0.0005
 None (0/4) 20 51
 Mild (1/4) 32 41
 Moderate (2/4) 30 1
 Moderately severe (3/4) 10 0
 Severe (4/4) 1 0
SAM (n, %) 93 (100%) 1 (1.1%) <0.0005
NYHA class 3.09 ± 0.60 1.12 ± 0.32 <0.0005
 I (1/4) 0 81
 II (2/4) 13 12
 III (3/4) 59 0
 IV (4/4) 21 0