Atrial Fibrillation. And the CHADS2 score. What's the deal?
Well, essentially this is a very simple scoring system to determine your patients risk of thromboembolism with atrial fibrillation.
- Congestive heart failure (any history): 1 point
- Hypertension (including prior history): 1 point
- Age > 75: 1 point
- Diabetes mellitus: 1 point
- Stroke: 2 points
Essentially, Aspirin can be used to treat low risk patients, Aspirin or Warfarin in moderate risk patients, and Warfarin in high risk patients. Warfarin will reduce the risk of embolic stroke by about 2/3.
Here is a link to the original article published in JAMA in 2001