Table 1.
Clinical Characteristics of HCM Patients
| Low Risk | High Risk | P Value | |
|---|---|---|---|
| Age (years) | 53 ± 14 | 40 ± 17 | 0.039 |
| Syncope | 2/19 | 3/17 | NS |
| Family history of SCD | 0/19 | 7/17 | 0.0023 |
| NSVT | 0/19 | 9/17 | 0.0003 |
| Extreme LVH (mm) | 0/19 | 11/17 | 0.0001 |
| SCD | 0/19 | 2/17 | NS |
| SVT | 0/19 | 1/17 | NS |
| LVDD (mm) | 45 ± 6 | 43 ± 4 | NS |
| LVSD (mm) | 25 ± 5 | 23 ± 8 | NS |
| IVS (mm) | 20 ± 4 | 25 ± 5 | 0.0013 |
| PW (mm) | 12 ± 4 | 12 ± 4 | NS |
| Fractional shortening | 0.43 ± 0.07 | 0.47 ± 0.16 | NS |
| Ejection fraction | 67 ± 6 | 65 ± 8 | NS |
NSVT = non sustained ventricular tachycardia; LVH = left ventricular hypertrophy; SVT = sustained ventricular tachycardia; LVDD = lelft ventricular diastolic diameter; LVSD = left ventricular systolic diameter; SCD = sudden cardiac death; IVS = interventricular septum; PW = posterior wall.