Summary of outcomes by treatment
| Treatment | Total patients | Stroke rate (%) | |
| None* | 441 | 24 | |
| Antiplatelets | ASA† alone | 246 | 5 |
| Plavix alone | 1 | 0 | |
| ASA† and Plavix | 34 | 0 | |
| Any antiplatelet or combination | 260 | 4 | |
| Anticoagulation | Warfarin alone | 8 | 13 |
| Heparin alone | 465 | 2 | |
| Any anticoagulation or combination | 478 | 3 | |
| Any antiplatelet or anticoagulation | 1145 | 3 | |
| Endovascular | Stent or coil | 181 | 9 |
| Any treatment (medical, endovascular) | 2031 | 3 | |
| Surgery | Open repair | 3 | 0 |
*No treatment often due to contraindications to coagulation or planned withdrawal of care.
†81 mg or 325 mg.
ASA, acetylsalicylic acid.