TABLE 3.
Comparison of Clinical Demographics by Treatment Type
| Treatment | |||||
|---|---|---|---|---|---|
| Variable | IPO | RPO | CR | DB | P value |
| Number of patients | 7 | 6 | 5 | 3 | |
| Sex, female: male | 2: 5 | 2: 4 | 3: 2 | 2: 1 | .55 |
| Age, (years), ≥45 yr: < 45 yr | 6: 1 | 5: 1 | 2: 3 | 3: 0 | .17 |
| Location, BAT: VBJ | 3: 4 | 3: 3 | 2: 3 | 3: 0 | .35 |
| An size (mm), mean ± SD | 28.29 ± 7.89 | 29.67 ± 6.98 | 27.00 ± 6.71 | 27.67 ± 2.52 | .93 |
| Atherosclerosis risk, no: yes | 2: 5 | 1: 5 | 2: 3 | 0: 3 | .59 |
| Bilateral Pcom patency, favorable: poor | 1:6 | 2: 4 | 2:3 | 0:3 | .51 |
| Preoperative mRS, 1: 2: 3: 4: 5 | 2: 0: 2: 2: 1 | 2: 0: 2: 1: 1 | 0: 0: 2: 2: 1 | 0: 1: 1: 1: 0 | .64 |
| Construction of bypass, no: yes | 1: 6 | 3: 3 | 5: 0 | 0: 3 | .010 |
| Postoperative mRS, 1: 2: 3: 4: 5: 6 | 1: 0: 0: 2: 2: 2 | 1: 2: 1: 1: 1: 0 | 0: 0: 1: 2: 2: 0 | 0: 0: 1: 1: 0: 1 | .56 |
| Postoperative angiographic findings | AD6, PBR6 | AD4, CD5, PBR3 | AD5 | AD0, PB3 | |
| Latest follow-up mRS, 1: 2: 3: 4: 5: 6 | 1a: 0: 0: 0: 2: 4 | 3b: 0: 0: 0: 0: 3 | 1a: 0: 0: 1: 0: 3 | 0: 0: 1: 0: 0: 2 | .19 |
| Follow-up from latest Tx (mo), mean ± SD | 38.90 ± 37.72 | 87.58 ± 91.59 | 50.80 ± 37.48 | 45.67 ± 60.37 | .54 |
AD, aneurysm disappeared; An, aneurysm; BAT, basilar artery trunk; CD, collateral development via either external carotid artery branches or vertebral artery muscular branches; CR, clip reconstruction; DB, distal bypass; IPO, immediately proximal occlusion; mRS, modified Rankin Scale; PB, patent bypass; PBR, patent bypass retrograde filling to distal basilar artery; Pcom, posterior communicating artery; RPO, remotely proximal occlusion; Tx, treatment; VBJ, vertebrobasilar junction.
aOne patient with IPO and one patient with CR attained mRS 1 at the latest follow-up, both aged younger than 45 yr (20 and 27).
bThree patients with RPO attained mRS 1 at the latest follow-up, 2 patients aged older than 45 yr (51and 57) and 1 aged 21 yr.