Cardiology
CHADS₂ Score
Estimates stroke risk in patients with atrial fibrillation.
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Parameters
CHADS₂ Score Result
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Formula
Congestive Heart Failure (1), Hypertension (1), Age ≥ 75 (1), Diabetes Mellitus (1), Stroke/TIA (2).Clinical Pearls
A landmark scoring system that standardized the decision to initiate anticoagulation in atrial fibrillation.
Limitations
Has been largely replaced by the CHA₂DS₂-VASc score, which is more comprehensive and better identifies truly low-risk patients who do not need anticoagulation.