CHA2DS2-VASc Calculator
CHA2DS2-VASc Calculator
What is the calculator for and who produced it?
CHA2DS2-VASc is used to calculate stroke risk in patients with Atrial Fibrillation. It should be used in combination with another tool to assess bleeding risk (HASBLED or ORBIT) to decide if the patient should be considered for anticoagulation.
How should it be used?
The calculator provides the user with the factors that contribute to the CHA2DS2-VASc score so that they can add these together and enter the score created into the template.
Interpretation of score
| CHA2DS2-VASc Score | Risk of ischaemic stroke | Risk of stroke/TIA/systemic embolism |
| 0 | 0.2% | 0.3% |
| 1 | 0.6% | 0.9% |
| 2 | 2.2% | 2.9% |
| 3 | 3.2% | 4.6% |
| 4 | 4.8% | 6.7% |
| 5 | 7.2% | 10.0% |
| 6 | 9.7% | 13.6% |
| 7 | 11.2% | 15.7% |
| 8 | 10.8% | 15.2% |
| 9 | 12.2% | 17.4% |