Table 2 Risk factors for retreatment after endovascular coiling of anterior communicating artery aneurysm
| Univariate analysis | Multivariate analysis | ||||||
|---|---|---|---|---|---|---|---|
| (N = 260) | Retreatment (n = 10) | No retreatment (n = 250) | OR (95% CI) | P-value | OR (95% CI) | P-value | |
| Patient factor | Male | 4 (40%) | 130 (52%) | 0.62 (0.15–2.21) | 0.46 | ||
| Age (year) | 50.7 ± 12.3 | 57.9 ± 10.9 | 0.94 (0.89–1.00) | 0.04* | 0.95 (0.88–1.01) | 0.12 | |
| Hypertension (%) | 6 (60) | 151 (60.4) | 0.98 (0.27–3.93) | 0.97 | |||
| Smoking (%) | 4 (40) | 111 (44.4) | 0.83 (0.21–2.99) | 0.78 | |||
| Aneurysm factor | Ruptured (%) | 8 (80) | 69 (27.6) | 10.4 (2.55–70.6) | 0.003* | 14.7 (2.77–127.9) | 0.004* |
| Maximal diameter | 7.15 ± 3.7 | 5.27 ± 2.2 | 1.25 (1.02–1.50) | 0.01* | 1.56 (1.05–2.36) | 0.02 * | |
| Size ratio | 2.9 ± 2.0 | 2.3 ± 1.1 | 1.35 (0.87–1.90) | 0.11 | |||
| Inflow angle | 162.8 ± 27.8 | 148.0 ± 28.8 | 1.02 (1.00–1.06) | 0.12 | 1.04 (1.01–1.09) | 0.03* | |
| Dome direction (Anterior, %) | 7 (70) | 138 (55.2) | 1.89 (1.51–8.94) | 0.036 | 5.03 (0.97–36.6) | 0.07 | |
| Hypoplastic A1 (%) | 3 (30) | 79 (31.6) | 0.93 (0.20–3.43) | 0.91 | |||
| Treatment factor | Stent usage (5) | 1 (10) | 51 (20.4) | 0.43 (0.02–2.39) | 0.43 | ||
|
Raymond class (II or III, %)) | 6 (60) | 87 (34.8) | 2.81 (1.78–11.24) | 0.01* | 6.19 (1.19–40.8) | 0.03* | |
