sa heart: Clinical Tools

CHA2DS2-VASc Score

The CHA2DS2-VASc Score predicts clinical risk of stroke and thromboembolism in atrial fibrillation. Developed on the same principles as the CHADS2 score it considers additional stroke risk factors and gives age a higher weighing. This results in better discrimination between high and low risk patients.

CHADS2 Score

The CHADS2 score is a stroke risk stratification tool in patients with non-valvular atrial fibrillation and is used to determine the level of anticoagulation therapy required. The higher the CHADS2 score, the greater the risk of stroke.

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.