Demographic, clinical, and angioarchitectural characteristics predictive for embolization complications by univariate analysis
| Characteristics | OR (95% CI) | P Value |
|---|---|---|
| Sex | ||
| Male | 0.84 (0.33–2.10) | .75 |
| Age, y | ||
| <18 | 0.89 (0.31–2.41) | .78 |
| 18–49 | 1.09 (0.37–2.76) | .84 |
| ≥50 | 1.16 (0.17–11.36) | 1.01 |
| Initial presentation | ||
| Hemorrhage | 1.15 (0.59–2.94) | .49 |
| Ischemia | 0.65 (0.14–3.27) | 1.00 |
| Headache | 1.86 (0.93–5.63) | .57 |
| Seizures | 0.64 (0.37–2.00) | .55 |
| No symptoms | 0.91 (0.17–4.39) | .70 |
| Location | ||
| Eloquent cortex | 2.57 (1.08–3.42) | .02 |
| Noneloquent cortex | 0.38 (0.24–0.86) | .02 |
| Midline | 0.55 (0.19–2.42) | .79 |
| Deep | 1.41 (0.29–2.85) | .51 |
| Size | ||
| ≤3 cm | 1.06 (0.42–2.40) | .79 |
| 3–6 cm | 0.80 (0.33–1.29) | .23 |
| ≥6 cm | 2.45 (0.57–5.32) | .17 |
| No. of feeders | ||
| 1 | 0.39 (0.06–1.54) | .38 |
| 2 | 1.75 (0.76–3.21) | .26 |
| ≥3 | 0.85 (0.47–3.84) | .72 |
| Classification of feeders | ||
| Terminal | 0.61 (0.35–1.97) | .32 |
| Perforating | 1.64 (0.79–4.58) | .25 |
| No. of draining veins | ||
| 1 | 0.73 (0.43–2.96) | .98 |
| 2 | 1.57 (0.58–3.63) | .34 |
| ≥3 | 0.62 (0.34–1.89) | .43 |
| Drainage classification | ||
| Exclusive superficial | 1.04 (0.77–2.52) | .90 |
| Exclusive deep | 4.56 (1.28–9.67) | .00 |
| Combined | 0.24 (0.09–0.53) | .03 |
| Venous morphology | ||
| Venous reflux | 1.91 (0.51–2.98) | .77 |
| Venous ectasia | 2.24 (1.32–9.88) | .26 |
| Venous stenosis | 1.50 (0.26–2.34) | .19 |
| Coexisting aneurysm | ||
| Intranidal | 0.99 (0.23–3.81) | .22 |
| Perinidal | 1.52 (3.72–8.50) | .61 |
| Spetzler-Martin classification | ||
| I–II | 2.32 (0.21–9.87) | .48 |
| III | 0.58 (0.70–4.05) | .54 |
| IV | 1.61 (1.22–4.53) | 1.20 |
| V | 0.83 (0.06–10.29) | 1.00 |
| Embolization degree | ||
| Complete | 0.87 (0.27–3.02) | .27 |
| Subtotal | 0.71 (0.40–1.60) | .13 |
| Partial | 1.92 (1.21–4.07) | .17 |
| Venous occlusion | 1.26 (0.94–2.83) | .84 |