HAS-BLED Score

A therapeutic bleeding risk stratification score for those on oral anticoagulants in atrial fibrillation. It is matched to the CHA2DS2-VASC score used for stroke risk stratification but has not as of 2010 been externally validated.

HAS-BLED score for bleeding risk on oral anticoagulation in AF

 

 Feature

 Score if present

 H

 Hypertension (Systolic>=160mmHG)

 1 

 A

 Abnormal renal & liver function (1 point each)

 1 or 2

 S

 Stroke in past

 1

 B

 Bleeding 

 1

 L  

 Labile INRs

 1 

 E

 Age >=65 years

 1

 D

 Taking other drugs & alcohol (1 point each)

 1 or 2

 

 

 Maximum 9 points

 

A score of 3 or more indicates an increased one year bleed risk on anticoagulation sufficient to justify caution or more regular review.

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