Table 2.
HCM Mutation Carriers Without LVH (n = 10) | HCM Patients With LVH (n = 27) | |
---|---|---|
No. of SCD risk factors | ||
0 | 8 (80) | 15 (55) |
1 | 1 (10) | 8 (30) |
2 | 1 (10) | 4 (15) |
3 | 0 (0) | 0 (0) |
Family history of SCD | 2 (20) | 11 (41) |
Unexplained syncope | 0 (0) | 1 (4) |
NSVT on Holter monitor | 1 (10) | 3 (11) |
Abnormal exercise blood pressure response | 0 (0) | 0 (0) |
Maximum LV wall thickness ≥30 mm | 0 (0) | 1 (4) |
LV outflow tract gradient | 0 (0) | 0 (0) |
Beta-blockers | 4 (40) | 18 (67) |
Calcium-channel blockers | 0 (0) | 22 (6) |
Values are n (%).
NSVT = nonsustained ventricular tachycardia; SCD = sudden cardiac death; other abbreviations as in Table 1.