ORBIT bleeding risk score in atrial fibrillation
Major bleeding risk on oral anticoagulation.
Inputs
Low hemoglobin or anemia (Hb below 13 men, 12 women)
Age above 74
Bleeding history
eGFR below 60
Antiplatelet therapy
Worked calculation
Your values are highlighted.
- Points
When to use
- Anticoagulated atrial fibrillation.
Pearls and pitfalls
- Use to address modifiable risks, not to withhold anticoagulation.
Why use
Better calibrated than HAS-BLED in some cohorts.
| Criterion | Points |
|---|---|
| Low hemoglobin or anemia (Hb below 13 men, 12 women) | +2 |
| Age above 74 | +1 |
| Bleeding history | +2 |
| eGFR below 60 | +1 |
| Antiplatelet therapy | +1 |