Summary of eight patients with intracranial pseudoaneurysms treated with the Willis covered stent
| Case No./Age /Sex | Presenting Symptoms | Cause | Aneurysm Location | Aneurysm Size (mm) | Stent Size (mm) | Resistance Reaching Target Lesion | Immediate Angiography, Poststenting | Follow-Up (mos) | Follow-Up Angiography | Clinical Outcome |
|---|---|---|---|---|---|---|---|---|---|---|
| 1/48/M | Headache, diplopia, decreased visual acuity | Post-balloon occlusion of CCF | Right C3 | 10 × 8 | 4 × 10 | None | PA resolution, parent artery patency | 12 | PA resolution, parent artery patency | Improvement |
| 2/38/M | Left eye blindness | Trauma | Left C4 | 15 × 12 | 4 × 10 | No apparent resistance | PA resolution, parent artery patency | 5 | PA resolution, parent artery patency | Unchanged |
| 3/34/M | Palsy | Post-balloon occlusion of CCF | Right C4 | 15 × 12 | 5 × 13 | None | PA resolution, small CCF | 6 | PA resolution, CCF alleviation | Improvement |
| 4/50/M | Palsy | Post-balloon occlusion of CCF | Right C4 | 23 × 16 | 4 × 13 | None | PA resolution, parent artery patency | 6 | PA resolution, parent artery patency | Full recovery |
| 5/35/M | Epistaxis | Trauma | Left C5 | 22 × 18 | 4 × 10 | None | Minimal endoleak into PA, parent artery patency | 6 | Residual cavity shrinkage, parent artery patency | Full recovery |
| 6/23/M | No symptoms | Post-balloon occlusion of CCF | Left C4 | 15 × 12 | 4 × 13 | None | PA resolution, parent artery patency | 3 | PA resolution, parent artery patency | Full recovery |
| 7/60/M | Headache, Ptosis | Trauma | Left C6 | 30 × 15 | 3.5 × 13 3.5 × 10 | None | Minimal endoleak into PA, parent artery patency | 3 | Residual cavity shrinkage, parent artery patency | Improvement |
| 8/11/M | Decreased visual acuity | Trauma | Right C7 | 18 × 10 | 3.5 × 10 | None | PA resolution, parent artery patency | 3 | PA resolution, parent artery patency | Full recovery |
Note:—CCF indicates carotid cavernous fistula; PA, pseudoaneurysm.