Table 3. Echocardiography parameters.

Parameter	Preoperative Echo	Discharge Echo
Basal septal thickness (cm)	2.10±0.43	1.04±0.26*
Resting LVOT gradient (mmHg)	67±38	11±7*
Provoked LVOT gradient (mmHg)	89±40	13±9*
Presence of significant SAM	75 (50%)	0 (0%)*
Moderate or severe mitral regurgitation	79 (53%)	8 (5.3%)*
Left atrial size (cm)	4.5±0.7	4.2±0.7
RVSP (mmHg)	33±10	34±10

*, P<0.05. LVOT, left ventricular outflow tract; SAM, systolic anterior motion; RVSP, right ventricular systolic pressure; Echo, echocardiogram.