Embolization characteristics
| No. | |
|---|---|
| Referred for embolization | 224 |
| Successful embolization (%) | 177 (79.0) |
| Method of embolization | |
| PVA (%) | 67 (39.0) |
| PVA and Gelfoam (%) | 75 (43.6) |
| PVA and coil (%) | 26 (15.1) |
| Coil (%) | 3 (1.7) |
| PVA and Gelfoam and coil (%) | 1 (0.6) |
| Embolized vessel | |
| Middle meningeal | 157 (67.4) |
| Occipital | 21 (9.0) |
| Internal maxillary | 14 (6.0) |
| Superficial temporal | 14 (6.0) |
| Deep temporal branch | 13 (5.6) |
| Ascending pharyngeal | 6 (2.6) |
| Posterior auricular | 1 (0.4) |
| Sphenopalatine | 3 (1.3) |
| Meningohypophyseal trunk | 1 (0.4) |
| Anterior cerebral artery branch | 1 (0.4) |
| Middle cerebral artery branch | 1 (0.4) |
| Vertebral artery branch | 1 (0.4) |
| Tumor devascularization | |
| >75% | 107 (68.6) |
| 50%–74% | 27 (17.3) |
| 25%–49% | 12 (7.7) |
| <25% | 10 (6.4) |
| Mean time from embolization to surgery (days) (range) | 1.6 (0–31) |
| Complications | |
| Dissection | 2 (1.1) |
| Facial nerve palsy | 1 (0.6) |
| Stroke | 1 (0.6) |
| Scalp infarction | 1 (0.6) |
| Iodine allergy | 1 (0.6) |