| CHADS2
Atrial Fibrillation Stroke risk calculator |
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Calculation(s) used
CHAD2 scoring: A point is given for each
category with a "yes" answer, two points if patient has had a
previous Stroke or TIA and the result is the total sum of
the points for each question.
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Interpretation
Stroke
Risk
| CHADS2 Score |
Stroke Risk (%) |
95%
CI |
| 0 |
1.9 |
1.2–3.0 |
| 1 |
2.8 |
2.0–3.8 |
| 2 |
4.0 |
3.1–5.1 |
| 3 |
5.9 |
4.6–7.3 |
| 4 |
8.5 |
6.3–11.1 |
| 5 |
12.5 |
8.2–17.5 |
| 6 |
18.2 |
10.5–27.4 |
Anti-coagulation
| CHADS2
Score |
Risk |
Anticoagulation
Therapy |
Considerations |
| 0 |
Low |
Aspirin |
Aspirin daily |
| 1 |
Moderate |
Aspirin or Warfarin |
Aspirin daily
OR
Target INR 2-3 |
| >=2 |
Moderate or High |
Warfarin |
Target INR 2-3
(unless contraindicated) |
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References
1. Needs referencing!
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