Table 1:

Baseline characteristics

ParameterNo.
No. of procedures129
No. of aneurysms131
No. of branches covered228
Sex
    Female82 (63.6%)
    Male47 (36.4%)
Median age (range) (yr)58 (29–82)
Smokinga40 (33.3%)
Multiple aneurysms32 (24.8%)
Presenting symptoms
    Asymptomatic28 (21.7%)
    Headache/dizziness30 (23.3%)
    Neurologic deficit71 (55%)
Subarachnoid hemorrhage
    Immediate (<24 hr)18 (14.0%)
    Acute (>24 hr and <2 wk)7 (5.4%)
    Remote (>2 wk)14 (10.9%)
Pretreatment mRS
    0–2101 (78.3%)
    3–528 (21.7%)
Aneurysm shape
    Saccular49 (37.4%)
    Fusiform53 (40.5%)
    Dissecting29 (22.1%)
Aneurysm location
    Vertebral artery46 (35.1%)
    PICA10 (7.6%)
    Vertebrobasilar artery18 (13.6%)
    Basilar artery45 (34.5%)
    SCA4 (3.1%)
    PCA8 (6.1%)
Aneurysm measurements (median) (range) (mm)
    Maximal diameter12 (2–73)
    Neck size (for saccular aneurysms)5.35 (2–15)
Daughter sac26 (19.8%)
Prior treatment
    Endovascular14 (10.7%)
    Surgery2 (1.5%)
    Both1 (0.8%)
Platelet function test77 (59.7%)
Clopidogrel nonresponders14 (18.2%)
Treatment of nonresponders
    Continue clopidogrel8 (57.1%)
    Switch to ticagrelor5 (35.8%)
    Other1 (7.1%)

  • Note:—SCA indicates superior cerebellar artery.

  • ↵a Data are missing for 9 procedures.