August 21, 2014 by dailybolusoflr
Calculate a HAS-BLED score with a CHADS2 score (http://www.mdcalc.com/chads2-score-for-atrial-fibrillation-stroke-risk/) to determine if the risk of bleeding outweighs the benefit of anticoagulation in Atrial fibrillation and Atrial flutter patients when considering vitamin K antagonists.
For example, if the CHADS2 score is 3 then a HAS-BLED score of three or more is predictive of harm > benefit for anticoagulation.
Use is recommended by Canadian Cardiovascular Society, but not the ACC/AHA
Original derivation from European Heart Survey data with a prospective cohort of 4,000 patients with AF who were followed for one year to determine risk of major bleed (53 pts total had major bleed)