Table 1

Absolute indication for lifelong oral anticoagulation

All patients with:
 • Mechanical prostheses
 • Chronic or intermittent atrial fibrillation in the presence of
  – native valve disease
  – bioprostheses
  – valve repair
  – valvuloplasty
 • Native valve disease and previous emboli
 • Mitral valve stenosis, independent of rhythm, with
  – high valve gradients
  – thrombus in left atrium
  – spontaneous echo contrast in left atrium
  – large left atrium > 50 mm
  – low cardiac output
  – congestive heart failure