| Chronic heart failure |
|
|
|
| Hypertension |
|
|
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| Age ≥ 75 years |
|
|
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| Diabetes Mellitus |
|
|
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| Previous Stroke or TIA |
|
|
CHADS2 risk of stroke % per year in patients with non rheumatic AF:
| CHADS2 Score |
Stroke Risk % |
|
0
|
1.9
|
|
1
|
2.8
|
|
2
|
4.0
|
|
3
|
5.9
|
|
4
|
8.5
|
|
5
|
12.5
|
|
6
|
18.2
|
Recommendations for anticoagulation
- Score 0 - Low risk, consider Aspirin
- Score 1 - Moderate risk, Aspirin
- Score 2 and above - High risk, Warfarin indicated to maintain INR between 2 -3 (unless contraindicated or patient refuses)
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