Table 2.
Residual aneurysms characteristics and outcomes after re-treatment.
| Re-treatment group | Residual aneurysm dimensions (mm) |
FRED dimensions (diameter × length) + volume PHIL | Angiographic score 3 months later | Parent vessel stenosis (%) | Neointimal score | % Neointimal coverage | ||
|---|---|---|---|---|---|---|---|---|
| Length | Width | Neck | ||||||
| Repeat flow diversion | 11 | 4.5 | 7.6 | 4.0 × 23 mm | 2 | 40 | 2 | 90 |
| Repeat flow diversion | 6 | 5.5 | 7.6 | 4.0 × 13 mm | 2 | 50 | 3 | 100 |
| Repeat flow diversion | 13.3 | 10.9 | 11.2 | (2) 4.0 × 13 mm 4.0 × 13 mm | 0 | 50 | 3 | 90 |
| Repeat flow diversion | 19.3 | 14.3 | 11.8 | (2) 4.0 × 13 mm 4.0 × 13 mm | 2 | 40 | 2 | 90 |
| Repeat flow diversion | 27.4 | 10.7 | 13.1 | (2) 4.0 × 13 mm 4.0 × 13 mm | 1 | 30 | 2 | 30 |
| Repeat flow diversion | 16.1 | 10.1 | 11.6 | 4.0 × 13 mm | 2 | 60 | 3 | 60 |
| Repeat flow diversion + LEA | 10.9 | 10.2 | 9.5 | (2) 4.0 × 13 mm 4.0 × 13 mm + 0.50 cc PHIL | 2a | 100a | 2 | N/A |
| Repeat flow diversion + LEA | 23.6 | 8.3 | 13.1 | 4.5 × 23 mm + 0.20 cc PHIL | 2 | 20 | 2 | 90 |
| Repeat flow diversion + LEA | 18.4 | 11.2 | 14.8 | 4.5 × 23 mm + 0.20 cc PHIL | 1a | 100a | 3 | N/A |
| Repeat flow diversion + LEA | 14.1 | 8.1 | 10.1 | (2) 4.0 × 13 mm 4.0 × 13 mm + 0.05 cc PHILb | 1 | 50 | 3 | 90 |
| Control | 5.1 | 5.2 | 7.1 | / | 2 | 10 | 3 | 90 |
| Control | 9.1 | 5.9 | 8.9 | / | 1 | 10 | 3 | 90 |
| Mean ± SD | 14.5 ± 6.8 | 8.7 ± 3.0 | 10.5 ± 2.5 | |||||
| Median (IQR) | 2 (1–2) | 45 (27.5–52.5) | 3 (2–3) | 90 (90–90) | ||||
a
Parent vessel completely occluded 3 months following re-treatment; retrograde aneurysm filling.
b
Microcatheter occluded before injection completed.
FRED: flow-redirection endoluminal device; LVIS: low-profile visualised intraluminal support; LEA: liquid embolic agent; IQR: interquartile range; /: not applicable.