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CHA₂DS₂-VASc Score

Stroke risk in atrial fibrillation — guides perioperative anticoagulation bridging decisions.

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CHA₂DS₂-VASc Score
Annual Stroke Risk0.2%
RecommendationNo anticoagulation recommended
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One platform for the whole case

Vigil pairs calculators like this with cited answers, weight- and organ-adjusted dosing, board prep, and a perioperative record — all in one place.

Decision support for licensed clinicians — verify every result against the patient and primary sources. Not a substitute for clinical judgment.