Technical and clinical outcome following intracranial stenting
| Technical outcome | ||
| Technical success (deploying the stent across the lesion with < 50% stenosis) | 98% | |
| Pre-stent stenosis (%) (mean (SD, range)) | 73 (11, 50–99) | |
| Post-stent stenosis (%) (mean (SD, range)) | 21% (7%, 0–40%) | |
| Post-stent imaging follow-up time (months) (mean (SD, range)) | 9 (4, 3–20) | |
| No of patients with follow-up imaging (n (%)) | 29 (56) | |
| Vertebral | 10 | |
| MCA | 7 | |
| BA | 6 | |
| ICA | 5 | |
| PCA | 1 | |
| Patient with re-stenosis: ≥50% in-stent stenosis (n (%)) | 7/29 (24) | |
| 50–69% | 2 | |
| 70–99% | 4 | |
| Occlusion, vertebral | 1 | |
| Symptomatic (TIA, ICA with amaurosis) | 1 | |
| Distribution of re-stenosis according to vessel location | ||
| Posterior circulation (vertebral 3/10, BA 0/6, PCA 0/1) | 3/16 (19%); p = 0.24 | |
| Anterior circulation (carotid 2/5, MCA 2/7) | 4/13 (31%); p = 0.24 | |
| Re-treatment for >90% re-stenosis | 3/7 | |
| Angioplasty with drug eluting stent, ICA | 1 | |
| Angioplasty alone, vertebral | 2 | |
| Clinical outcome | ||
| Mean clinical follow up time (months) (mean (SD)) | 14.6 (8, 8–30) | |
| 24 h any stroke or death (n (%)) | 1 (2) | |
| Site related events (pseudoaneurysm, hematoma) (n (%)) | 2 (4) | |
| 30 days stroke or death (including 24 h events) (n (%)) | 4 (8) | |
| Long term events (ipsilateral stroke or death beyond 30 days, and stroke or death within 30 days) (n (%)) | 5 (10) | |
BA, Basilar artery; ICA, internal carotid artery; MCA, middle cerebral artery; PCA, posterior cerebral artery; TIA, transient ischemic attack.