Thromboembolic risk factors
| Number | |
|---|---|
| AF, atrial fibrillation; EF, ejection fraction. | |
| Aortic prosthesis with no other risk factor | 21 (26%) |
| Aortic prosthesis plus one risk factor | 10 (12%) |
| AF | 2 |
| Previous thromboembolism | 1 |
| Björk-Shiley valve | 6 |
| Recent thrombosis or embolus | 1 |
| Aortic prosthesis plus two risk factors | 10 (12%) |
| AF and previous thromboembolism | 3 |
| AF and hypercoagulable condition | 1 |
| AF and Björk-Shiley valve | 5 |
| AF and Starr-Edwards valve | 1 |
| Aortic prosthesis plus three risk factors | 2 (2%) |
| AF, previous thromboembolism, and EF <30% | 1 |
| AF, Björk-Shiley valve, and previous thromboembolism | 1 |
| Mitral prosthesis with no other risk factor | 6 (7%) |
| Mitral prosthesis plus one risk factor | 13 (16%) |
| AF | 11 |
| Thrombotic event when previously not taking treatment | 1 |
| Recent thrombosis or embolus | 1 |
| Mitral prosthesis plus two risk factors | 14 (17%) |
| AF and previous thromboembolism | 6 |
| AF and EF <30% | 1 |
| AF and Björk-Shiley valve | 5 |
| Björk-Shiley valve and previous thromboembolism | 1 |
| Björk-Shiley valve and EF <30% | 1 |
| Mitral prosthesis plus three risk factors | 6 (7%) |
| AF, EF <30%, and previous thromboembolism | 2 |
| AF, hypercoagulable condition and previous thromboembolism | 1 |
| AF, Björk-Shiley valve, and previous thromboembolism | 3 |
| Total | 82 |