Comparison of the unruptured IVADAs with three different treatments
| Variables | Single-stage treatment (A), n=6 | Staged treatment (B), n=22 | P value (A vs B) | One side treatment (C), n=20 | P value (A vs C) | P value (B vs C) |
| Admission mRS score | 0.67±0.58 | 1.09±0.54 | 0.24 | 0.60±0.70 | 0.78 | 0.07 |
| Treatment method | 0.05 | 0.01* | <0.01* | |||
| Conservative | 0 (0) | 0 (0) | 10 (50.0) | |||
| Trapping | 1 (16.7) | 0 (0) | 0 (0) | |||
| SAC | 4 (66.7) | 7 (31.8) | 6 (30.0) | |||
| Stent alone | 1 (16.7) | 6 (27.3) | 0 (0) | |||
| Flow diverter | 0 (0) | 9 (40.9) | 4 (20.0) | |||
| Thromboembolic complications | 2 of 3 (66.7) | 0 of 11 (0) | <0.01* | 0 of 10 (0) | <0.01* | – |
| Immediate angiography | 0.07 | 0.18 | 0.11 | |||
| Partial obliteration | 1 (16.7) | 15 (68.2) | 4 (40.0) | |||
| Near-complete obliteration | 1 (16.7) | 2 (9.1) | 4 (40.0) | |||
| Complete obliteration | 4 (66.7) | 5 (22.7) | 2 (20.0) | |||
| Follow-up angiography | 0.12 | 0.81 | 0.06 | |||
| Improve | 2 (33.3) | 15 (68.2) | 7 (38.9) | |||
| Stable | 4 (66.7) | 7 (31.8) | 11 (61.1) * | |||
| Recanalisation | 0 (0) | 0 (0) | 0 (0) | |||
| Last mRS score | 2.33±1.16 | 0.09±0.30 | <0.01* | 0±0 | <0.01* | 0.34 |
*One patient with bilateral IVADs had no follow-up.
IVADAs, intracranial vertebral artery dissecting aneurysms; mRS, modified Rankin Scale; SAC, stent-assisted coiling.