Atrial Fibrillation Patients Categorized as 'Not for Anticoagulation' According to the 2014 Canadian Cardiovascular Society Algorithm Are Not 'Low Risk'

摘要

Background: Oral anticoagulation (OAC) is highly effective for stroke prevention in nonvalvular atrial fibrillation. We explored rates of stroke/thromboembolism/transient ischemic attack among the "OAC not recommended" patient group defined according to the 2014 Canadian Cardiovascular Society (CCS) algorithm (based on the Congestive Heart Failure, Hypertension, Age, Diabetes, Stroke/Transient Ischemic Attack [CHADS(2)] score) who would have been offered OAC using the European Society of Cardiology (ESC) guidelines approach (based on the Congestive Heart Failure, Hypertension, Age [>= 75 years], Diabetes, Stroke/Transient Ischemic Attack, Vascular Disease, Age [65-74 years], Sex [Female]; CHA(2)DS(2)-VASc score).