CHADS2-VASc Score

Aka: CHADS2-VASc Score, CHA2DS2-VASc Score

1. See Also
   1. Atrial Fibrillation Anticoagulation
   2. Outpatient Bleeding Risk Index
   3. HAS-BLED Score
   4. CHADS2 Score
2. Criteria
   1. Score 1 point: Congestive Heart Failure
   2. Score 1 point: Hypertension
   3. Score 2 points: Age 75 years old and older
   4. Score 1 point: Diabetes Mellitus
   5. Score 2 points: Stroke
   6. Score 1 point: Vascular disease
   7. Score 1 point: Age 65 years old and older
   8. Score 1 point: Sex-Category = Female
3. Interpretation: Score 0 to 9 points
   1. Score 0 points
      1. No therapy (preferred) OR
      2. Aspirin
   2. Score 1 point
      1. Oral Anticoagulation (preferred) OR
      2. Aspirin
   3. Score 2-3 points or more
      1. Oral Anticoagulation
4. Interpretation: CVA Risk based on CHAD Vasc Score
   1. Score 0: 0.2% CVA Risk (low risk)
   2. Score 1: 0.6% CVA Risk (Low-moderate risk)
   3. Score 2: 2.2% CVA Risk (Moderate-high risk)
   4. Score 3: 3.2% CVA Risk
   5. Score 4: 4.8% CVA Risk
   6. Score 5: 7.2% CVA Risk
   7. Score 6: 9.7% CVA Risk
   8. Score 7: >10% CVA Risk
   9. From Swedish Atrial Fibrillation Cohort Study
5. Efficacy
   1. More accurate than CHADS2 Score at identifying a cohort of Atrial Fibrillation patients who could benefit from oral Anticoagulation
   2. Includes more risk factors in the mnemonic than CHADS2
6. References
   1. Lane (2012) Circulation 126: 860-5 [PubMed]
   2. Lip (2010) Chest 137: 263-72 [PubMed]
   3. Mason (2012) Am J Med 125:e1-6 [PubMed]