Table 1:

Patient and aneurysm characteristics

No. of patients100
Sex
    Female66
    Male34
Age
    Mean53.6 y
    Minimum11 d
    Maximum86 y
No. of treated aneurysms104
Unruptured aneurysms (%)56 (54)
    Incidental41 (39)
    Mass effect6 (6)
    Previous SAH8 (8)
    Seizure1 (1)
Ruptured aneurysms (%)48 (46)
Hunt and Hess grade (%)
    I16 (15)
    II5 (5)
    III12 (12)
    IV14 (13)
    V1 (1)
Aneurysm location (%)
Anterior78 (75)
    Cavernous0 (0)
    Ophthalmic9 (9)
    Paraophthalmic11 (11)
    PcomA28 (27)
    AchoA1 (1)
    ICA bifurcation5 (5)
    ACA1 (1)
    AcomA14 (13)
    MCA9 (9)
Posterior26 (25)
    VB junction1 (1)
    PICA0 (0)
    Basilar trunk3 (3)
    SCA2 (2)
    Basilar tip16 (15)
    PCA4 (4)
Aneurysm size (%)
    S/S42 (40)
    S/W27 (26)
    Large32 (32)
    Giant3 (3)
HydroCoil length
    Range9.9%–100%
    Average45.5%
  • Note:—SAH indicates subarachnoid hemorrhage; PcomA, posterior communicating artery; AchoA, anterior choroidal artery; ICA, internal carotid artery; ACA, anterior cerebral artery; AcomA, anterior communicating artery; MCA, middle cerebral artery; VB, vertebrobasilar; PICA, posterior inferior cerebral artery; SCA, superior cerebral artery; PCA, posterior cerebral artery; SIS, small size (<10 mm)/narrow-necked (<4 mm); S/W, small size/wide-necked (>4 mm); Large, >10–25 mm; Giant, >25 mm.