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.