Article Figures & Data
Tables
Characteristic Irregularly Shaped Regularly Shaped P No. (%) 153 (30.7) 346 (69.3) Mean (SD) age, y 52.3 (11.8) 52.1 (11.6) .86 Female, no. (%) 108 (70.6) 243 (70.0) .92 Recently ruptured, no. (%) 87 (56.9) 179 (51.6) .29 Assist device used, no. (%) 79 (52.3) 144 (42.4) .05 Small D/N ratio, no. (%) 43 (28.1) 121 (34.9) .15 Aneurysm size, no. (%) Small 56 (36.6) 72 (20.8) .0003 Medium 81 (52.9) 208 (59.9) Large 16 (10.5) 67 (19.3) Mean (SD) size, mm 8.9 (3.7) 7.5 (3.2) <.0001 WFNS score, no. (%) 0 62 (40.5) 156 (45.0) .38 I 73 (47.7) 161 (46.4) II 16 (10.5) 26 (7.5) III 1 (0.7 4 (1.2) VI 1 (0.7) 0 (0.0) Note:—D/N indicates dome-to-neck ratio; WFNS, World Federation of Neurosurgical Societies.
- Table 2:
Characteristics of patients with a small D/N aneurysm versus those with a large D/N aneurysm
Characteristic D/N P Small Large Total patients, no. (%) 164 (32.9) 335 (67.1) Mean (SD) age, y 52.5 (11.4) 51.9 (11.7) .64 Female, no. (%) 118 (72.0) 233 (69.4) .6 Recently ruptured, no. (%) 84 (51.2) 182 (54.2) .57 Assist device used, no. (%) 90 (55.6) 133 (40.4) .002 Irregular shape, no. (%) 121 (73.8) 226 (67.3) .15 Aneurysm size, no. (%) Small 36 (22.0) 47 (14.0) .05 Medium 93 (56.7) 196 (58.3) Large 35 (21.3) 93 (27.7) Mean (SD) size, mm 7.2 (3.1) 8.2 (3.5) .001 WFNS, no. (%) 0 76 (46.3) 142 (42.3) .51 I 71 (43.3) 163 (48.5) II 14 (8.5) 28 (8.3) III 3 (1.8) 2 (0.6) VI 0 (0.0) 1 (0.3) Outcome Irregularly Shaped Regularly Shaped HydroCoil, n/N (%) Bare Platinum, n/N (%) P HydroCoil, n/N (%) Bare Platinum, n/N (%) P Good neurologic outcome 63/70 (90.0) 63/73 (86.3) .61 141/162 (87.0) 146/164 (89.0) .58 Any recurrence 23/66 (34.9) 41/69 (59.4) .004 65/151 (43.0) 75/162 (46.3) .57 Major recurrence 17/66 (25.8) 30/69 (43.5) .046 42/152 (27.6) 52/162 (32.1) .39 Re-treatment 2/76 (2.6) 3/77 (3.9) .66 4/173 (2.3) 8/173 (4.6) .26 Outcome Small D/N Large D/N HydroCoil, n/N (%) Bare Platinum, n/N (%) P HydroCoil, n/N (%) Bare Platinum, n/N (%) P Good neurologic outcome 68/77 (88.3) 70/78 (89.7) .80 136/155 (87.7) 139/159 (87.4) 1.00 Any recurrence 26/73 (35.6) 42/76 (55.3) .02 62/144 (43.1) 74/155 (47.7) .49 Major recurrence 18/73 (24.7) 32/76 (42.1) .02 41/145 (28.3) 50/155 (32.3) .53 Re-treatment 1/83 (1.2) 3/81 (3.7) .36 5/166 (3.0) 8/169 (4.7) .57
