CHADS2 Score for Atrial Fibrillation
Assess risk of stroke in atrial fibrillation
Warfarin anticoagulation titrated to an INR of 2.0-3.0 is recommended for the average patient with a CHADS2 score ≥2 unless contraindicated (e.g., history of frequent falls, clinically significant bleeding, inability to obtain regular INR). Either Warfarin or Aspirin can be used for the average patient with a CHADS2 score of 1 depending on physician discretion and patient preference. Aspirin 325 mg daily is recommended for the average patient with a CHADS2 score of 0.
- [1]Gage BF, van Walraven C, Pearce L, et al.: Selecting patients with atrial fibrillation for anticoagulation: stroke risk stratification in patients taking aspirin.Circulation 2004 October 19, 110 (16): 2287-92
- [2]Gage BF, Waterman AD, Shannon W, Boechler M, Rich MW, Radford MJ.: Validation of clinical classification schemes for predicting stroke: results from the National Registry of Atrial Fibrillation.JAMA: the Journal of the American Medical Association 2001 June 13, 285 (22): 2864-70
- [3]Go AS, Hylek EM, Chang Y, Phillips KA, Henault LE, Capra AM, Jensvold NG, Selby JV, Singer DE.: Anticoagulation therapy for stroke prevention in atrial fibrillation: how well do randomized trials translate into clinical practice?JAMA 2003 November 26, 290 (20): 2685-92
Results
Real-time automated computation
Warfarin anticoagulation titrated to an INR of 2.0-3.0 is recommended for the average patient with a CHADS2 score ≥2 unless contraindicated (e.g., history of frequent falls, clinically significant bleeding, inability to obtain regular INR). Either Warfarin or Aspirin can be used for the average patient with a CHADS2 score of 1 depending on physician discretion and patient preference. Aspirin 325 mg daily is recommended for the average patient with a CHADS2 score of 0.
- [1]Gage BF, van Walraven C, Pearce L, et al.: Selecting patients with atrial fibrillation for anticoagulation: stroke risk stratification in patients taking aspirin.Circulation 2004 October 19, 110 (16): 2287-92
- [2]Gage BF, Waterman AD, Shannon W, Boechler M, Rich MW, Radford MJ.: Validation of clinical classification schemes for predicting stroke: results from the National Registry of Atrial Fibrillation.JAMA: the Journal of the American Medical Association 2001 June 13, 285 (22): 2864-70
- [3]Go AS, Hylek EM, Chang Y, Phillips KA, Henault LE, Capra AM, Jensvold NG, Selby JV, Singer DE.: Anticoagulation therapy for stroke prevention in atrial fibrillation: how well do randomized trials translate into clinical practice?JAMA 2003 November 26, 290 (20): 2685-92