Article Figures & Data
Figures
- FIG 1.
A, Angiogram shows right MCA bifurcation aneurysm with a wide neck. B, The WEB device protruding into the parent artery is causing flow reduction in the M2 segment. C, Radiograph demonstrating an LVIS stent (MicroVention) placed in the MCA elevates the distal edge of the WEB device.
- FIG 2.
Occlusion state at each period in the midterm follow-up group.
- FIG 3.
Occlusion state at each period in the long-term follow-up group.
Tables
Initial Follow-Up% (n = 21) Short-Term (<6 Months)% (n = 24) Midterm (6–24 Months)% (n =28) Long-Term (>24 Months)% (n = 8) Complete occlusion 71.4 (15) 62.5 (15) 57.1 (16) 62.5 (5) Residual neck 28.5 (6) 16.8 (4) 17.8 (5) 25.0 (2) Residual aneurysm 0.0 (0) 20.8 (5) 25.0 (7) 12.5 (1) Retreatment 0.0 (0) 0.0 (0) 17.8 (6) 25.0 (2) Patient No. Sex Age (yr) Location W (mm) H (mm) D/N Ratio WEB Type Follow-Up Period of Retreatment Additional Device 1 F 54 MCA 10.1 10.5 1.7 DL Midterm Y stent and coils 2 F 62 MCA 5.4 5.6 1.2 DL Midterm Stent and coils 3 F 65 AcomA 11 10 1.5 DL Midterm Stent and coils 4 F 71 AcomA 9 8 1.3 DL Midterm Stent and coils 5 F 63 MCA 10 9 1.7 DL Long-term pCONus and coils 6 F 67 AcomA 9 8 1.5 DL Midterm Stent and coils 7 F 67 AcomA 11 8 1.3 DL Midterm pCANvas 8 F 55 MCA 5 6 1.3 DL Long-term Stent and coils Note:—D/N ratio indicates dome-to-neck ratio; H, aneurysm height; W, aneurysm width.
- Table 3:
Comparison of patients, aneurysms, and device characteristics according to the presence of retreatment
Retreatment Present Absent P Value Number of patients (n) 8 23 Patient characteristics Age, y (average ± SD) 63.0 ± 5.9 62.2 ± 8.0 .929 Male/female 0/8 7/28 .31 Hypertension 4/8 (50%) 16/33 (48%) .938 Family history 1/8 (12.5%) 2/33 (6%) .488 Aneurysm characteristics Height (mm) 8.13 ± 1.72 6.36 ± 1.85 .026 Width (mm) 8.81 ± 2.35 6.73 ± 1.83 .029 Neck (mm) 6.03 ± 1.36 5.34 ± 1.36 .112 Dome-to-neck ratio 1.44 ± 0.19 1.28 ± 0.19 .132 Aneurysm location AcomA 4/8 (50%) 5/33 (15%) .054 MCA 4/8 (50%) 25/33 (75%) .202 Device characteristics Height difference from the aneurysm −2.39 ± 0.86 −1.40 ± 1.20 .038 Width difference from the aneurysm −0.69 ± 1.35 0.36 ± 0.92 .055 DL/SL&SLS 8/0 23/10 .162
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