Table 1 Guideline risk stratification and recommended antithrombotic therapy.
Classes of thromboembolic risk: | Estimated stroke risk (%/year): | Patients' characteristics and risk factors*: | Recommendations†: |
|---|---|---|---|
Very high risk | 12 | Previous ischaemic stroke or TIA or other embolic event | OAT strongly recommended |
High risk, age <75 | >5 | ≥65 years and at least one risk factor | OAT strongly recommended |
High risk, age ≥75 | >5 | ≥65 years and at least one risk factor | OAT or ASA recommended |
Moderate risk | 3–5 | <65 years and at least one risk factor or ≥65 years and no risk factors | OAT or ASA recommended |
Low risk | ≤1 | <65 years and no risk factors | OAT not recommended |