Table 1

Baseline characteristics of the patients at inclusion

Total n=90 patients
Age, years, mean±SD (median)52.68±10.50 (52.50)
Men, n (%)38 (42.22)
Medical history, n (%)
 Smoking59 (65.56)
 Intracranial ischemic stroke12 (13.33)
 Intracranial hemorrhagic stroke27 (30.00)
 Diabetes1 (1.11)
 Hypertension37 (41.11)
 Arteriovenous malformations1 (1.11)
 Peripheral vascular diseases2 (2.22)
 Cardiovascular disease10 (11.11)
 Family history of aneurysm8 (8.89)
Aneurysm diagnosis, n (%)
 Incidental finding66 (73.33)
 Symptomatic24 (26.67)
Score WFNS, n (%)
 078 (86.67)
 111 (12.22)
 21 (1.11)
Multiple aneurysms, n (%)27 (30.00)
 217 (18.89)
 37 (7.78)
 42 (2.22)
 51 (1.11)
Ruptured aneurysms, n (%)23 (25.56)
 Treated in the acute phase (<30 days post rupture), n (%)4 (4.44)
 Not treated in the acute phase (>30 days post rupture), n (%)18 (20.00)
 Missing data1
Rupture to treatment delay, months, mean±SD (median)22.28±35.74 (7.73)
Aneurysm size (CoreLab data)
 Height, mm, mean±SD (median)5.8±3.0 (5.7)
 Width, mm, mean±SD (median)5.8±2.9 (5.0)
 Neck, mm, mean±SD (median)4.7±2.0 (4.5)
 Dome-to-neck ratio, n (%)
   <286 (95.56)
  ≥24 (4.44)
 Large aneurysms (≥10 mm), n (%)9 (10.00)
 Small aneurysms (<10 mm), n (%)81 (90.00)
Parent artery (CoreLab data)
 Distal diameter, mm, mean±SD, (median)2.4±0.5 (2.4)
 Proximal diameter, mm, mean±SD  (median)2.8±0.6 (2.6)
Retreatment of previously treated aneurysm, n (%)28 (31.11)
 Clip2 (2.22)
 Coiling26 (28.89)
Aneurysm location, n (%)
 Internal carotid artery6 (6.67)
 Anterior choroidal artery1 (1.11)
 Anterior communicating artery32 (35.56)
 Posterior communicating artery1 (1.11)
 Superior cerebellar artery2 (2.22)
 Anterior cerebral artery1 (1.11)
 Middle cerebral artery33 (36.67)
 Posterior cerebral artery1 (1.11)
 Ophthalmic artery1 (1.11)
 Carotid bifurcation (’T')2 (2.22)
 Cavernous internal carotid artery2 (2.22)
 Basilar tip3 (3.33)
 Basilar artery5 (5.56)