Procedural features, complications, and outcomes by AVMES
| AVMES 3 | AVMES 4 | AVMES 5 | AVMES >5 | ANOVA | |||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Mean | 95% CI | Mean | 95% CI | Mean | 95% CI | Mean | 95% CI | p Value | |||||
| Number of embolization procedures | 1.38 | 0.75 | 2.00 | 1.50 | 0.93 | 2.07 | 1.44 | 0.67 | 2.22 | 2.10 | 1.18 | 3.02 | 0.3835 |
| Number of pedicles injected (n=38) | 1.13 | 0.83 | 1.42 | 1.33 | 0.92 | 1.75 | 1.50 | 1.05 | 1.95 | 1.90 | 1.19 | 2.61 | 0.1198 |
| Volume of Onyx injected (mL, n=30) | 1.97 | 0.48 | 3.46 | 5.12 | 0.00 | 12.46 | 4.59 | 0.63 | 8.54 | 25.21 | 3.79 | 46.63 | 0.0033 |
| Complications (%) | |||||||||||||
| Major | 0 | 0 | 0 | 8 | 0 | 27 | 11 | 0 | 37 | 30 | 0 | 65 | 0.2727 |
| Minor | 25 | 0 | 64 | 17 | 0 | 41 | 0 | 0 | 0 | 40 | 3 | 77 | 0.1933 |
| Outcomes (%) | |||||||||||||
| AVM obliteration (overall) | 100 | 100 | 100 | 75 | 46 | 100 | 78 | 44 | 100 | 20 | 0 | 50 | 0.0008 |
| Uncomplicated AVM obliteration | 100 | 100 | 100 | 67 | 35 | 98 | 67 | 28 | 100 | 10 | 0 | 33 | 0.0003 |
| Uncomplicated embolization, residual AVMs | 0 | 0 | 0 | 25 | 0 | 54 | 22 | 0 | 56 | 60 | 23 | 97 | 0.0358 |
| AVM obliteration with major complication | 0 | 0 | 0 | 8 | 0 | 27 | 11 | 0 | 37 | 10 | 0 | 33 | 0.8433 |
| Major complication, residual AVMs | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 20 | 0 | 50 | 0.1092 |
AVM, arteriovenous malformation; AVMES, AVM embocure score.