ATRIA Bleeding Risk Score

– share this tool –

Clinical Use

Estimate bleeding risk for patients on warfarin

More Info

The ATRIA (Anticoagulation and Risk Factors in Atrial Fibrillation) study followed up 13,559 adults with nonvalvular, nontransient atrial fibrillation with 9,186 patients on warfarin.1 There are 6 variables used for the calculation of the score.

 

ATRIA Bleeding Risk Scoring
Variable Points
Anemia +3
Severe renal disease/dialysis +3
Age ≥ 75 +2
Stroke history +1
Prior severe hemorrhage +1
Hypertension +1

 

Risk of major bleeding based on the ATRIA score
Score Risk Major bleeding at one year
<4 Low <1%
4 Intermediate 2.6%
>4 High 5.8%

Reference

1. Fang MC, Go AS, Chang Y, et al. A New Risk Scheme to Predict Warfarin-Associated Hemorrhage: The ATRIA (Anticoagulation and Risk Factors in Atrial Fibrillation) Study. J Am Coll Cardiol. 2011;58(4):395-401. doi:10.1016/j.jacc.2011.03.031.  Full text

Disclaimer

We are doing our best to prepare the content of this website. However, Cardiology Connections, Corp cannot warranty the expressions and suggestions of the contents, as well as its accuracy. In addition, to the extent permitted by the law, Cardiology Connections, Corp shall not be responsible for any losses and/or damages due to the usage of the information on our website. Furthermore, the links contained on our website may lead to external sites, which are provided for convenience only. Any information or statements that appeared in these sites are not sponsored, endorsed, or otherwise approved by Cardiology Connections, Corp. For these external sites, Cardiology Connections, Corp cannot be held liable for the availability of, or the content located on or through it. Plus, any losses or damages occurred from using these contents or the internet generally.

Developer: Sirikarn Napan, MD, FACC