Article Figures & Data
Tables
Size mm No. of Aneurysms Treated with GDCs No. of Aneurysms Treated at the Authors’ Institution No. of Aneurysms Treated at Three Major Institutions in Hong Kong ≤5 66 (68) 138 (70.1) 170 (63.4) 6–10 26 (27) 50 (25.4) 72 (26.9) 11–15 4 (4) 8 (4) 12 (4.5) >15 1 (1) 1 (0.5) 14 (5.2) Total 97 (100) 197 (100) 268 (100) Note.—Numbers in parentheses are percentages.
Clinical Presentation Change in Neurologic Status Improved Unchanged Deteriorated Mass Effect 9 6 1 SAH I 25 12 7 SAH II 7 1 4 SAH III 3 0 2 SAH IV 9 1 1 SAH V 3 0 0 Total 56 20 15 A: Radiologic and clinical outcome Aneurysm Size, mm Occlusion Glasgow Outcome Scale Total Subtotal Incomplete 1 2 3 or 4 ≤5 58/66 (88) 0 8/66 (12) 49/64 (76.6) 0 15/64 (23.4) >5 22/31 (71) 6/31 (19) 3/31 (10) 21/27 (77.8) 0 6/27 (22.2) B: Periprocedural complication, mortality, and subsequent procedure rates Aneurysm Size, mm Complication Mortality Rate Subsequent Procedure Rupture Thromboembolism Vasospasm ≤5 7/66 (10.6) 2/66 (3) 2/66 (3) 2/66 (3) 11/66 (16.6) >5 0 0 0 3/31 (9.7) 6/31 (19.3) Complication Rate Mortality Rate Glasgow Outcome Score Occlusion Subsequent Procedure 1 2 3 4 Total Subtotal Incomplete Presentation SAH 10/80 (12.5) 4/80 (5) 55/75 (73.3) 0 9/75 (12) 11/75 (14.7) 67/80 (83.8) 4/80 (5) 9/80 (11.2) 15/80 (18.75) Mass effect 1/17 (5.9) 1/17 (5.9) 15/16 (93.7) 0 0 1/16 (6.3) 13/17 (76.5) 2/17 (11.75) 2/17 (11.75) 4/17 (23.5) SAH severity I 3/46 (6.5) 1/46 (2.2) 35/44 (79.5) 0 4/44 (9.1) 5/44 (11.4) 40/46 (86.9) 1/46 (2.1) 5/46 (11) 7/46 (15.2) II 2/12 (16.7) 0 7/12 (58.3) 0 2/12 (16.7) 3/12 (25) 8/12 (66.7) 3/12 (25) 1/12 (8.3) 2/12 (16.7) III 3/5 (60) 0 3/5 (60) 0 1/5 (20) 1/5 (20) 4/5 (80) 0 1/5 (20) 1/5 (20) IV 1/11 (9.1) 0 8/11 (72.7) 0 1/11 (9.1) 2/11 (18.2) 10/11 (90.9) 0 1/11 (9.1) 2/11 (18.2) V 2/6 (33.3) 3/6 (50) 2/3 (66.7) 0 1/3 (33.3) 0 5/6 (83.3) 0 1/6 (16.7) 0 Note.—Numbers in parentheses are percentages.
Aneurysm Size, mm No of Aneurysms Degree of Occlusion Total Subtotal Incomplete 2–3 30 27 (90) 0 3 (10) >3–5 36 31 (86.1) 0 5 (13.9) >5–8 18 13 (72.2) 3 (16.7) 2 (11.1) >8 13 9 (69.2) 3 (23.1) 1 (7.7) Note.—Numbers in parentheses are percentages.
Follow-Up DSA Complete Occlusion Static Growth Slight Growth Subsequent Clipping Subsequent GDC Treatment Recurrent aneurysm (n = 13) 0 2(15.4) 2(15.4) 5(38.4) 4(30.8) Residual after subtotal occlusion (n = 6) 1(16.7) 3(50) 0 2(33.3) 0 Residual after incomplete occlusion (n = 11) 1(9.1) 4(36.4) 0 6(54.5) 0 Note.—Numbers in parentheses are percentages.
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