Recognised markers of increased risk of sudden death in HCM
| Risk factor |
|---|
| 1. Previous cardiac arrest |
| 2. Non-sustained VT on Holter or exercise |
| 3. Abnormal exertional blood pressure response |
| 4. Unexplained syncope |
| 5. Family history of premature sudden death |
| 6. Severe left ventricular hypertrophy ≥3 cm |