MDCalc

Precision Medicine for Cardiomyopathy (PRIMaCY) Score

Predicts sudden cardiac death (SCD) risk in pediatric patients with hypertrophic cardiomyopathy (HCM).

Use in patients <18 years old at diagnosis with primary HCM. Treatment decisions should be made with patient-physician shared decision-making.

years
mm
mm
mm
mmHg

History of nonsustained ventricular tachycardia in prior 6 months

Defined as 3 consecutive ventricular ectopic beats at a rate of >120 bpm and <30 s in duration

History of unexplained syncope in prior 6 months

Genotype status

Result:

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Advice
  • The tool does not provide treatment recommendations based on PRIMaCY score alone.
  • The PRIMaCY score should be used in conjunction with the physician’s clinical judgment to help guide a shared decision-making discussion between physician and patient regarding risk of SCD, risk and benefit of ICD, and patient preferences. 

Graded SCD risk bar.

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