Exam

CHADS2-VASc Score

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CHADS2-VASc Score, CHA2DS2-VASc Score

  • See Also
  1. Atrial Fibrillation Anticoagulation
  2. Outpatient Bleeding Risk Index
  3. HAS-BLED Score
  4. CHADS2 Score
  • 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
  • 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
  • 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 FibrillationCohort study
  • 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
  • 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]