Stroke risk assessment in atrial fibrillation.
Adjusted annual stroke rates are from the Euro Heart Survey cohort (Lip 2010); small numbers at scores 7-9 make those figures unstable, and other cohorts report different rates. Applies to non-valvular atrial fibrillation. The 2024 ESC guideline replaces this score with CHA2DS2-VA (no sex category). Combine with bleeding-risk assessment and clinical judgment.
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Cha2ds2 Vasc is built on published formulas and reference ranges from established health sources. We revisit it periodically as guidance evolves; the "Last reviewed" date above shows when that last happened. If something looks wrong, tell us with the feedback button in the bottom-right corner.
No. Cha2ds2 Vasc gives you a general estimate based on the inputs you provide, not a diagnosis. Existing conditions, medications, and individual history all change what a number actually means for you. Treat this as a starting point for a conversation with a doctor or other qualified health professional, not a substitute for one.