Veterans Affairs Stroke Prevention in Nonrheumatic Atrial Fibrillation Investigators "SPINAF"


Phase N/A Results

Eligibility Criteria

Inclusion Criteria

Atrial fibrillation, no echocardiographic evidence of rheumatic heart disease, prothrombin-time ratio within normal range.

Exclusion Criteria

Intermittent atrial fibrillation, definite indication or contraindication to anticoagulation, unwilling or unable to complete follow-up, received anticoagulation within past 6 months for more than 1 continuous month, transient ischemic episodes within previous 5 years, hyperthyroidism, cardioversion planned, unstable angina.