Article Figures & Data
Tables
Characteristics No. of aneurysms 579 No. of patients 531 No. of procedures 534 Patient demographics Male (No.) 147 (27.7%) Female (No.) 384 (72.3%) Age at time of treatment (median) (range) (yr) 54 (13–86) Presentation of patients (No.) Incidental 249 (46.9%) Headaches 98 (18.4%) Cranial nerve palsy 37 (7%) Recanalization of previously treated aneurysm 58 (10.9%) Subarachnoid hemorrhage 65 (12.2%) Acute (≤3 days) 41 (7.7%) Stroke 20 (3.8%) Other 4 (0.8%) Patients with multiple aneurysms (No.) 141 (26.6%) Aneurysms per patient (median) (range) 1 (1–5) Patients with a single aneurysm 390 (73.5%) Patients with 2 aneurysms 101 (19%) Patients with 3 aneurysms 30 (5.7%) Patients with 4 aneurysms 8 (1.5%) Patients with 5 aneurysms 2 (0.3%) Pretreatment mRS (per patient) (No.) 0–2 525 (98.8%) 3–5 6 (1.2%) Aneurysm characteristics (No.) Left 272 (47.0%) Right 257 (44.4%) Midline 50 (8.6%) Anterior circulation (No.) Internal carotid artery Posterior communicating 50 (8.6%) Paraophthalmic 270 (46.6%) Cavernous 45 (7.8%) Other 67 (11.5%) Middle cerebral artery 37 (6.4%) Anterior cerebral artery 16 (2.7%) Anterior communicating artery 4 (0.9%) Pericallosal artery 13 (2.2%) Posterior circulation (No.) 36 (6.2%) Basilar artery 30 (5.2%) Posterior cerebral artery 9 (1.6%) Superior cerebellar artery 2 (0.3%) Aneurysm morphology (No.) Saccular Sidewall 459 (79.2%) Bifurcation 63 (10.9%) Fusiform/dissecting/blister Fusiform 27 (4.7%) Dissecting 20 (3.5%) Blister 10 (1.7%) Maximal diameter (median) (range) (mm) 7.6 (1–36.6) Neck diameter (median) (range) (mm) 4.5 (1–30) Periprocedural (In-Hospital Stay) (No.) During Follow-Up (after Hospital Discharge) (No.) Complications Spontaneous rupture of the FRED-treated aneurysm 0 2 Spontaneous nonaneurysmal intracranial hemorrhage 3 1 Symptomatic ischemic stroke Minor (≤1 mo) 8 5 Major (>1 mo) 2 1 Stent/parent artery stenosis 5 3 Stent/parent artery occlusion 4 8 Permanent cranial neuropathy 0 0 Other complications Groin hematoma 1 Dissection 1 Aneurysm growth 2 Total 24 (4.5%) 22 (4.1%) Adverse events Detachment in the hub of the microcatheter 2 Poor opening on deployment 10 Torquing of stent on deployment 1 Multiple repositioning 2 Visible gap between inner and outer stent 1 Fish mouthing of the distal stent end 13 Total 15 (2.8%) 14 (2.6%) Transient morbidity (≤90 days) 10 (1.9%) 7 (1.3%) Permanent morbidity (>90 days) 3 (0.6%) 1 (0.2%) Mortality 4 (0.75%) 4 (0.75%)
