Table 1. The baseline clinical variables of HOCM patients.
| Variables | Myectomy |
|---|---|
| Male, n (%) | 3 (42.86%) |
| Syncope, n (%) | 4 (57.14%) |
| New York Heart Association III/IV, n (%) | 5 (71.43%) |
| Age (y) | 40.00±13.49 |
| Preoperative echocardiography | |
| Ventricular septal thickness (mm) | 21.57±4.65 |
| LV outflow tract gradient (mmHg) | 82.71±31.63 |
| Systolic anterior motion (SAM), n (%) | 7/7 (100%) |
| Mitral valve regurgitation area (cm2) | 6.00±2.51 |
| Preoperative CT | |
| Ventricular septal thickness (mm) | 25.96±6.36 |
| Myectomy procedure | |
| Cross-clamp time (min) | 51.85±9.65 |
| Blood loss (mL) | 785.71±267.26 |
| Weight of resected muscle (g) | 11.14±2.85 |
| Complications | |
| Complete left bundle branch block | 1/7 (14.29%) |
| Permanent pacemaker insertion due to heart block from procedure | 0 |
| Mortality post-procedure (<30 days) | 0 |
| Postoperative echocardiography | |
| Ventricular septal thickness (mm) | 17.42±5.88 |
| LV outflow tract gradient (mmHg) | 14.91±6.89 |
| systolic anterior motion (SAM) | 0 |
| Postoperative CT | |
| Ventricular septal thickness (mm) | 17.50±3.30 |
HOCM, hypertrophic obstructive cardiomyopathy.