CHA2DS2-VASc — untreated stroke risk above ~2% a year? No
af-anticoag-not-indicatedNo one has reached this rule yetNo routine anticoagulation; reassess at least annually
No clinician has signed off this rule yet. It reflects our reading of the guidelines cited below, which has not been independently checked.
Word for word, as generated for the example person below. Figures in the text are theirs.
Your stroke risk score is 0, which is below the level where a blood thinner is routinely recommended.
Scored as: no additional risk factors. That corresponds to roughly about 0.2% a year untreated, where the bleeding risk of anticoagulation broadly cancels the benefit. This is worth rechecking whenever something changes — the score climbs with a birthday, and turning 65 or developing high blood pressure or diabetes can move you across the line without anything about the AF itself changing.
Guideline consensusRecommended by the guideline writing committee, drawing on trials plus expert judgement where trials run out.· Class I· checked 2026-09-12
2023 ACC/AHA/ACCP/HRS Guideline for the Diagnosis and Management of Atrial Fibrillation · Class I — reassess at least annually
“Atrial fibrillation, low stroke score” — an illustrative profile, not a real user.
Asked after: Atrial fibrillation
Cited by the recommendations above.
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Runs in lib/engine/afPathway.ts as af-anticoag-not-indicated.