Is HAS-BLED score better than CHADS2 and HEMOR2RHAGES schemes in assessing 1 year risk of major bleed in Atrial Fibrillation Patients?

Why is this study important? suboptimal administration of oral anticoagulants in patients with atrial fibrillation, in view of bleeding complications, has necessitated the use of a standardized and user-friendly stroke risk stratification method in clinical practice. the issue of deciding on which stroke scale provides the most prognostic information and hence serves as a reliable neurological index is an important one. has-bled, chads2 and hemor2rhages are some of the risk stratification scores which have been serving this purpose with variable success and a review is essential to compare their relative efficacy.