1,329 calculators and references across 60 specialties, with formula confidence shown up front.
ABC Stroke Risk Score: Explanation and Clinical Context The ABC (Age, Biomarkers, Clinical History) Stroke Risk Score is a validated biomarker-based model designed to estimate the individual 1-year risk of ischemic stroke or systemic embolism in patients with atrial fibrillation. It was developed and validated using data from the ARISTOTLE and RE-LY trials (Hijazi et al., Circulation 2016;133:268–277). Unlike traditi
Appraisal of Risk in AF (ARISTOTLE-based) Score: Explanation and Clinical Context The ARISTOTLE-based risk score for atrial fibrillation was developed from the ARISTOTLE trial population to predict 1-year risk of stroke or systemic embolism in patients with AF. The model is based on easily obtainable clinical variables including age, prior stroke or transient ischemic attack (TIA), hypertension, diabetes mellitus, an
ATRIA Bleeding Score: Explanation and Clinical Context The ATRIA Bleeding Score (Anticoagulation and Risk Factors in Atrial Fibrillation) is a validated risk stratification tool designed to estimate the annual risk of major bleeding in patients with atrial fibrillation (AF) receiving oral anticoagulant therapy. Developed from a cohort of over 13,000 AF patients in the ATRIA study, it incorporates five independent pre