CHADS2 and CHA2DS2-VASc

CHADS2

• Congestive heart disease (Heart failure or ejection fraction less than or = 35%)
• Hypertension
• Age (> or = 75 years old)
• Diabetes mellitus
• Previous Stroke/TIA or systemic emboli - 2 points

0 = 1.9% stroke risk
6 = 18.2% stroke risk

CHA2DS2-VASc

• Congestive heart disease (Heart failure or ejection fraction less than or = 35%)
• Hypertension
• Age (> or = 65 years old) - up to 2 points (1 for 65-74 and 2 or 75 and above)
• Diabetes mellitus
• Previous Stroke/TIA or systemic emboli - 2 points
• Vascular disease (previous MI, peripheral arterial disease or aortic plaque)
• Female gender

0 points 0% stroke risk (??)
9 points 15.2% stroke risk