An overview of the cases who experienced shortening
| Case | Site of implantation | Shortened device | Additional device | Shortening location and extent (mm) |
| 1 | A1–A2 left | 2.25×10 | 2.25×15 | Distal device 3 mm |
| 2 | A1–A2 right | 2.25×15 | 2.25×15 | Distal device 3 mm |
| 3 | ICA left | 3.25×20 | 3.25×25 | Distal device 4 mm |
| 4 | MCA left | 2.25×15 | 2.75×15 | Proximal device 4 mm |