TABLE 1.
Clinical characteristics of study participants
| Study participants (n = 135) | |
|---|---|
| Male, n (%) | 69 (51) |
| Age, years | 51 ± 16 |
| NYHA functional class | |
| Class I, n (%) | 29 (21) |
| Class II, n (%) | 77 (57) |
| Class III–IV, n (%) | 29 (21) |
| Mean NYHA functional class | 2.0 ± 0.7 |
| NSVT on Holter, n (%) | 25 (19) |
| Resting LVOT gradient | |
| ≥30 mm Hg, n (%) | 76 (56) |
| Hypertension, n (%) | 37 (27) |
| Diabetes, n (%) | 11 (8) |
| Drugs, n (%) | |
| β‐Blockers | 120 (89) |
| Calcium channel antagonists | 16 (12) |
| ACEI/ARB | 18 (13) |
| Diuretics | 25 (19) |
| Amiodarone | 6 (4) |
Abbreviations: ACEI, angiotensin I‐converting enzyme inhibitor; ARB, angiotensin II receptor blockage; LVOT, left ventricular outflow tract; NSVT, nonsustained ventricular tachycardia; NYHA, New York Heart Association.