Preoperative hematoma size, postoperative hematoma size, change in hematoma size (mean±SD), and radiographic outcomes of chronic subdural hematoma procedures by embolic material used
| Onyx (n=29) | nBCA (n=5) | Particles and/or coils (n=7) | P value | |
| Preoperative hematoma size (cm) | 15.1±3.3 | 13.4±5.0 | 15.6±5.7 | 0.59 |
| Postoperative hematoma size (cm) | 2.2±3.4 | 3.7±2.1 | 2.3±4.5 | 0.66 |
| Change in hematoma size (cm) | 13.0±4.8 | 9.7±5.6 | 13.3±5.0 | 0.35 |
| No. (%) of procedures with complete resolution | 20 (69) | 6 (50) | 0.25 | |
| No. (%) of procedures with treatment failure | 0 (0) | 1 (8) | 0.12 | |
nBCA, n-butyl cyanoacrylate; Onyx, ethylene vinyl alcohol copolymer.