Table 2.
Procedural characteristics and outcomes.
| VARIABLE | ALL |
|---|---|
| Number of treated patients (%) | 7/7 (100%) |
| Number of treated segments (%) | 35/35 (100%) |
| Segment localization | |
| Carotid T (%) | 2/35 (6%) |
| M1 (%) | 8/35 (23%) |
| M2 (%) | 9/35 (25%) |
| A1 (%) | 6/35 (17%) |
| A2 (%) | 8/35 (23%) |
| A3 (%) | 2/35 (6%) |
| Left side (%) | 15/35 (43%) |
| General anesthesia (%) | 33/35 (94%) |
| Intravenous heparin during treatment (%) | 4/35 (11%) |
| Intra‑arterial chemical treatment, mg (median, IQR) | 2 (2–3) |
| Intra‑arterial chemical treatment, min (median, IQR) | 10 (10–15) |
| Imaging outcomes | |
| Post treatment TMax, seconds (median, IQR) | 1.4 (1.2–1.6) |
| Post treatment artery diameter, mm (median, IQR) | 2.1 (2.0–2.6) |
| Post treatment visual vasospasm (%) | |
| None (%) | 31/35 (89%) |
| Moderate, no further treatment needed (%) | 4/35 (11%) |
| Artery diameter improvement in percent [after/before, median IQR)] | 64 (48–113) |
| TMax change in percent [after/before, median (IQR)] | −45 (−40 to −52) |
| Need to retreat the dilated segment (%) | 19/35 (54%) |
| Days to retreatment, (median, IQR) | 2 (2‑3) |
| Complications | |
| No complication (%) | 2/35 (6%) |
| Post‑treatment CT extravasation (%) | 0/35 (0%) |
| Post‑treatment cervical dissection (%) | 0/35 (0%) |
| Post‑treatment distal clots (%) | 2/35 (6%) |
*Continuous variables are reported as mean (± SD) or median [interquartile range (IQR)].
**Categorical variables are reported as proportions.