Table 1:

Baseline characteristics

ParameterNo.
No. of patients84
No. of aneurysms84
Females42 (50.0%)
Median age (range) (yr)54 (15–81)
Pretreatment mRS of patients without SAH58
 053 (91.4%)
 14 (6.9%)
 21 (1.7%)
 3–50 (0.0%)
Index aneurysm presentation
 Acute SAH (within 48 hours)12 (14.3%)
 <2 weeks since SAH6 (7.1%)
 >2 weeks since SAH7 (8.3%)
 Stroke2 (2.4%)
 Brain stem compression5 (6.0%)
 Brain stem infarction2 (2.4%)
 Incidental38 (45.2%)
 Othera12 (14.3%)
Aneurysm location
 Vertebral artery (intradural)42 (50%)
 Basilar artery22 (26.1%)
 Posterior cerebral artery7 (8.3%)
 Superior cerebellar artery4 (4.8%)
 Vertebral artery (extradural)4 (4.8%)
 Posterior inferior cerebellar artery3 (3.6%)
 Vertebrobasilar junction2 (2.4%)
Aneurysm morphology
 Saccular34 (40.5%)
 Fusiform21 (25.0%)
 Dissecting19 (22.6%)
 Blister/pseudoaneurysm10 (11.9%)
Index aneurysm pretreatedb7 (8.3%)
Aneurysm size (median) (range) (mm)7 (2–67)
Intra-aneurysmal thrombus7 (8.3%)

  • ↵a  Other Headache (n = 7), vertigo (n = 1), syncope (n = 1), TIA (1), dizziness (n = 1), Traumatic brain injury (n = 1).

  • ↵b Pretreatment endovascular (n = 6), endovascular, and open microsurgery (n = 1).