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Table 1: Baseline characteristics of the studied patient population as stratified by failed or successful recanalization
Characteristics Total (n = 47) Successful (n = 35) Failed (n = 12) P Value
Mean age (yr) 63.6 (SD, 9.6) 64.3 (SD, 9.8) 61.8 (SD, 9.2) .443
Male sex (No.) (%) 42 (89.4%) 31 (88.6%) 11 (91.7%) 1
Risk factors 
 Hypertension (No.) (%) 31 (66.0%) 23 (65.7%) 8 (66.7%) 1
 Diabetes mellitus (No.) (%) 16 (34.0%) 14 (40.0%) 2 (16.7%) .263
 Hyperlipidemia (No.) (%) 5 (10.6%) 4 (11.4%) 1 (8.3%) 1
 Cardiac disease (No.) (%) 7 (14.9%) 6 (17.1%) 1 (8.3%) .787
 Smoking history (No.) (%) 23 (48.9%) 17 (48.6%) 6 (50.0%) .932
 Drinking history (No.) (%) 15 (31.9%) 12 (25.5%) 3 (25.0%) .813
Neurologic symptoms 1
 TIA (No.) (%) 8 (17.0%) 6 (17.1%) 2 (16.7%) 
 Stroke (No.) (%) 39 (83.0%) 29 (82.9%) 10 (83.3%) 
Preoperative mRS score (median) (IQR) 1 (1–2) 1 (1–2) 1 (1–1) .497
Radiologic characteristics 
 Right-sided recanalization (No.) (%) 20 (42.6%) 16 (45.7%) 4 (33.3%) .454
ICA stump morphology .181
 Tapered or blunt stump (No.) (%) 36 (76.6%) 29 (82.9%) 7 (58.3%) 
 No stump (No.) (%) 11 (23.4%) 6 (17.1%) 5 (41.7%) 
Level of distal ICA occlusion segment .004
 Below the cavernous segment (No.) (%) 17 (36.2%) 16 (45.7%) 1 (8.3%) 
 At the cavernous or clinoid segment (No.) (%) 21 (44.7%) 16 (45.7%) 5 (41.7%) 
 At or above the ophthalmic segment (No.) (%) 9 (19.1%) 3 (8.6%) 6 (50%) 
Occlusion length ≤5cm (No.) (%) 12 (25.5%) 12 (34.3%) 0 (0%) .049
Radiologic occlusion to recanalization ≤3 mo (No.) (%) 41 (87.2%) 32 (91.4%) 9 (75.0%) .164
Note:—IQR indicates interquartile range.