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Cardiology

HCM Risk-SCD for Hypertrophic Cardiomyopathy

Estimates 5-year risk of sudden cardiac death (SCD) in hypertrophic cardiomyopathy to guide ICD implantation (ESC 2014 model).

Measured on echocardiography

Parasternal long-axis measurement

Resting or provokable gradient

Score interpretation

Low 5-Year SCD Risk 0–3.9

HCM Risk-SCD < 4%: Low risk. ICD prophylaxis generally not recommended.

→ No ICD indicated. Annual cardiology review. Avoid competitive sport. Lifestyle counselling.

Intermediate 5-Year SCD Risk 4–5.9

HCM Risk-SCD 4–5.9%: Intermediate risk. ICD may be considered.

→ ICD consideration in individual clinical context. Detailed discussion of risks/benefits with patient. Specialist HCM centre referral.

High 5-Year SCD Risk 6–100

HCM Risk-SCD ≥ 6%: High risk. ICD implantation recommended (ESC 2014 Class IIa).

→ ICD implantation recommended. Cardiology specialist centre. Genetic counselling.

Interpretation bands for the HCM Risk-SCD. Apply clinical judgement and local guidance.

References

Related

Curated clinical cross-links plus same-class fallbacks.

Decision support only — verify against a current formulary, NICE, or your local guideline before clinical use.