Intraprocedural complications
| Procedural complication | Aneurysm max diameter (mm)/Location/type | Aneurysm status | Management | SVB device | Clinical consequence | Aneurysm immediate occlusion rate |
| Covered branch acute occlusion | 4 mm Pericallosal Saccular | Unruptured Incidental | Increasing blood pressure (160/100). Solved | 2.25×15 mm | None | Near-complete occlusion. OKM C3 |
| Parent artery vasospasm | 2 mm M2 segment, superior branch Saccular | Ruptured | ia. nimodipin Solved | 2.25×15 mm | None | Stagnation in capillary and venous phase OKM A2–A3 |
| Parent artery vasospasm | 2.6 mm AcoA Saccular | Unruptured Incidental | ia. Nimodipin +Milrinone Solved | 2.25×15 mm | None | Stagnation in capillary phase OKM A2 |
| Branch perforation with microwire | 2 mm Pericallosal Saccular | Recanalized after coiling | Angiographic silent | 2.25×20 mm | None | Complete filling OKM A1 |
| Proximal-end stent cClotting | 30 mm ICA bifurcation Saccular | Unruptured homonymous hemianopia | PTA Integrillin iv Solved | 3.25×15 mm | None | Incomplete filling in capillary&venous phase OKM B2-B3 |