September 27, 2012Open Access
View Full PaperThe CHA2DS2-VASc score identifies those patients with atrial fibrillation and a CHADS2 score of 1 who are unlikely to benefit from oral anticoagulant therapy
Structured PICO
Does the CHA2DS2-VASc score identify patients with atrial fibrillation and a CHADS2 score of 1 who are unlikely to benefit from oral anticoagulant therapy?
P
Population
Patients with atrial fibrillation and a CHADS2 score of 1
I
Intervention
CHA2DS2-VASc score assessment
C
Comparator
CHADS2 score alone
O
Outcome
Annual risk of SSE (stroke and systemic embolism)hard clinical
The CHA2DS2-VASc score can identify a subset of AF patients with a CHADS2 score of 1 who have a low enough stroke risk (1% annually) to potentially withhold oral anticoagulation.
Abstract
The CHA(2)DS(2)-VASc score reclassifies 26% of patients with a CHADS(2) score of 1 to a low annual risk of SSE of 1%. This risk seems low enough to consider withholding anticoagulant treatment.