TABLE 1.
Patient Demographics
| Variable | All included patients | Surgically treated patients | Conservatively managed patients | P value, surgery vs conservative management |
|---|---|---|---|---|
| Number of patients | 32 | 21 | 11 | |
| Sex, female: male | 12: 20 | 9: 12 | 3: 8 | .54 |
| Age, ≥45 yr: < 45 yr | 27: 5 | 16: 5 | 11: 0 | .078 |
| Location, BAT: VBJ | 18: 14 | 11: 10 | 7: 4 | .54 |
| An size, mean ± SD (mm) | 27.62 ± 5.57 | 28.3 ± 6.44 | 26.4 ± 6.41 | .39 |
| Atherosclerosis risk, no: yes | 7: 25 | 5: 16 | 2: 9 | .71 |
| Bilateral Pcom patency, favorable: poor | 5: 27 | 5: 16 | 0: 11 | .078 |
| Preoperative mRS, 1: 2: 3: 4: 5 | 4: 2: 10: 9: 7 | 4: 1: 7: 6: 3 | 0: 1: 3: 3: 4 | .10 |
| Tx category, IPO: RPO: CR: DB: no Tx | 7: 6: 5: 3: 11 | 7: 6: 5: 3: 0 | 0: 0: 0: 0: 11 | |
| Construction of bypass, no: yes | 20: 12 | 20: 12 | 0: 0 | |
| Postoperative mRSa, 1: 2: 3: 4: 5: 6 | 3: 2: 6: 8: 9: 4 | 3: 2: 6: 8: 9: 4 | NA | |
| Latest follow-up mRS, 1: 2: 3: 4: 5: 6 | 5: 1: 1: 1: 2: 22 | 5: 0: 1: 1: 2: 12 | 0: 1: 0: 0: 0: 10 | .11 |
| Follow-up from latest Tx, mean ± SD (mo) | 45.21 ± 53.60 | 56.1 ± 60.8 | 19.4 ± 26.7 | .10 |
An indicates aneurysm; BAT, basilar trunk; CR, clip reconstruction; DB, distal bypass; IPO, immediate proximal occlusion; mRS, modified Rankin Scale; Pcom, posterior communicating artery; RPO, remote proximal occlusion; Tx, treatment; VBJ, vertebrobasilar junction.
aFor untreated patients, mRS was obtained at 3 mo after the initial diagnosis.