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. 2018 Jul;39(7):1303–1309. doi: 10.3174/ajnr.A5696

Table 3:

Predictors of branch occlusion following coverage

Parameter Branch Occlusion (No.) (%)
P Value
Not Occluded (n = 203) Occluded (n = 25)
Sex
    Female 108 (87.1%) 16 (12.9%) .3
    Male 95 (91.3%) 9 (8.7%)
Median age (range) (yr) 59.5 (29–82) 61 (42–78) .56
Smokinga
    Yes 53 (82.8%) 11 (17.2%) .1
    No 137 (90.7%) 14 (9.3%)
Presenting symptoms
    Asymptomatic 32 (72.7%) 12 (27.3%) <.001
    Headache/dizziness 38 (88.4%) 5 (11.5%)
    Neurologic deficit 133 (94.3%) 8 (5.7%)
Subarachnoid hemorrhage
    No 141 (87.6%) 20 (12.4%) .36
    Acute (<24 hr) 25 (96.2%) 1 (3.8%)
    Immediate (<2 wk) 11 (100%) 0%
    Remote (>2 wk) 26 (86.7%) 4 (13.3%)
Pretreatment mRS
    0–2 160 (87.4%) 23 (12.6%) .12
    3–5 43 (95.6%) 2 (4.4%)
Aneurysm shape
    Saccular 74 (84.1%) 14 (15.9%) .18
    Fusiform 89 (91.8%) 8 (8.2%)
    Dissecting 38 (92.7%) 3 (7.3%)
Aneurysm measurements
    Maximal diameter
        <7 mm 32 (84.2%) 6 (15.8%) .23
        7–12 mm 50 (84.7%) 9 (15.3%)
        13–24 mm 52 (89.7%) 6 (10.3%)
        >24 mm 69 (94.5%) 4 (5.5%)
Daughter sac
    Yes 45 (90%) 5 (10%) .8
    No 158 (88.8%) 20 (11.2%)
Intra-aneurysmal thrombus
    Yes 68 (94.4%) 4 (5.6%) .08
    No 135 (86.5%) 21 (13.5%)
Prior treatment
    No 174 (88.3%) 23 (11.7%) .8
    Endovascular 25 (92.6%) 2 (7.4%)
    Surgery 3 (100%) 0%
    Both 1 (100%) 0%
Platelet function testing
    Yes 128 (85.3%) 22 (14.7%) .01
    No 75 (96.2%) 3 (3.8%)
Clopidogrel respondersb
    Yes 110 (86.6%) 17 (13.4%) .3
    No 18 (78.3%) 5 (21.7%)
Adjunctive coiling
    Yes 75 (88.2%) 10 (11.8%) .77
    No 128 (89.5%) 15 (10.5%)
No. of Pipelines deployed (median) (range) 1 (1–14) 1 (1–4) .33
Length of procedure (median) (range) (min) 110 (22–410) 114 (32–271) .8
Branch
    VA 15 (65.2%) 8 (34.8%) .001
    PICA 45 (91.8%) 4 (8.2%)
    AICA 72 (92.3%) 6 (7.7%)
    SCA 58 (95.1%) 3 (4.9%)
    PCA 13 (76.5%) 4 (23.5%)
No. of covered branches in same procedure
    1 37 (97.4%) 1 (2.6%) .07
    ≥2 166 (87.4%) 24 (12.6%)

Note:—SCA indicates superior cerebellar artery.

a

Data are missing for 13 branches.

b

Among patients with platelet function testing.