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  Clinical Calculators - CHA2DS2-VASc Score  
     
 

The CHA2DS2-VASc score is a clinical prediction tool that estimates the risk of a stroke in patients with atrial fibrillation (non-rheuumatic). It is a refined version of the CHADS2 score (see menu to left for link to this clinical calculator) used to determine whether the patient should be treated with anticoagulation or antiplatelet therapy in order to reduce their risk of stroke. Those patients scoring either 0 or 1 on the CHADS2 tool should be reassessed using the CHA2DS2-VASc tool. The CHA2DS2-VASc score is able to better startify low risk patients. In the UK, NICE (National Institute for Health and Clinical Excellence) recommends the use of the CHADS2 scoring system. However, guidelines published in 2012 by the European Society of Cardiology suggest using the CHA2DS2-VASc score to determine the most appropriate anticoagulation startegy.

You must give information about all eight criteria - congestive heart failure, hypertension, age, diabetes, stroke/TIA, vascular disease and patient gender - in order to startify the patient for the risk of stroke using the CHA2DS2-VASc tool.

  Congestive Heart Failure:      
    Yes  
    No  
         
  Hypertension:      
    Yes  
    No  
         
  Age:      
    < 65 years  
    65 - 74 years  
    ≥ 75 years  
         
  Diabetes Mellitus:      
    Yes  
    No  
         
  Stroke or TIA:      
    Yes  
    No  
         
  Vascular disease*:      
    Yes  
    No  
         
  Sex:      
    Female  
    Male  
         
         
       
         

 
     
  * Prior myocardial infarction, peripheral artery disease, aortic plaque  
     
 

Reference

Atrial Fibrillation (Management of) 2010 and Focused Update (2012) - ESC Clinical Practice Guidelines

 
   
   
   
 

 

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Last Update: 31 January 2008