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1,329 calculators and references across 60 specialties, with formula confidence shown up front.

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SCD-HeFT Risk Model Calculator

SCD-HeFT Risk Model: Explanation and Clinical Context The SCD-HeFT (Sudden Cardiac Death in Heart Failure Trial) Risk Model estimates 5-year mortality risk in patients with chronic heart failure and reduced ejection fraction. The model is derived from a multivariable Cox proportional hazards analysis of the SCD-HeFT trial population, incorporating age, sex, NYHA class, left ventricular ejection fraction (LVEF), ische

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Seattle Proportional Risk Model (SPRM) Calculator

Seattle Proportional Risk Model (SPRM): Explanation and Clinical Context The SPRM is a prognostic tool designed to estimate the proportion of sudden death among all-cause mortality in patients with heart failure and reduced ejection fraction (EF < 35%). Developed from a cohort of 9,885 patients with 2,552 deaths, the model identifies key clinical variables associated with a higher likelihood of sudden death. These in

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SHOCKED Score (Post-ICD Survival) Calculator

SHOCKED Score: Explanation and Clinical Context The SHOCKED Score is a clinical tool developed to predict long-term survival in patients with implantable cardioverter-defibrillators (ICDs). It incorporates several clinical variables to stratify patients into different risk categories. A higher score indicates a higher risk of mortality, guiding clinicians in decision-making regarding device therapy and management str