Patient and tumor characteristics
| Total Cohort | Embo | No Embo | P Value | |
|---|---|---|---|---|
| Total patients | 470 | 174 | 307 | – |
| Total treated meningiomas | 504 | 177 | 327 | – |
| Mean age (range) (yr) | 57 (17–90) | 56 (17–82) | 58 (18–90) | .2988 |
| Female (%) | 336 (71.5) | 116 (66.7) | 223 (72.6) | .185 |
| Tumor location | <.001a | |||
| Olfactory groove (%) | 27 (5.5) | 5 (2.9) | 22 (6.9) | |
| Planum sphenoidale/tuberculum (%) | 42 (8.6) | 5 (2.9) | 37 (11.6) | |
| Cavernous sinus (%) | 5 (1.0) | 0 | 5 (1.6) | |
| Sphenoid wing (%) | 66 (13.5) | 31 (18.0) | 35 (11.0) | |
| Suprasellar (%) | 2 (0.4) | 0 | 2 (0.6) | |
| Convexity (%) | 187 (38.2) | 65 (37.8) | 122 (38.2) | |
| Parasagittal (%) | 88 (18.0) | 41 (23.8) | 47 (14.7) | |
| Middle cranial fossa (%) | 12 (2.4) | 2 (1.2) | 10 (3.1) | |
| Posterior fossa (%) | 41 (8.4) | 18 (10.5) | 24 (7.5) | |
| Intraosseous (%) | 1 (0.2) | 1 (0.6) | 0 | |
| Intraventricular (%) | 9 (1.8) | 0 | 9 (2.8) | |
| Cerebellopontine angle (%) | 10 (2.0) | 4 (2.3) | 6 (1.9) | |
| Skull base location (%) | 164 (33.4) | 47 (27.3) | 117 (36.7) | .036a |
| Max. tumor diameter (mm) (range) | 38.7 (5–89) | 45.6 (16–89) | 34.9 (5–89) | <.001a |
| Prior resection (%) | 59 (11.9) | 11 (6.4) | 48 (15.0) | .005a |
| Prior radiosurgery (%) | 35 (7.0) | 11 (6.3) | 24 (7.5) | .626 |
| Prior radiotherapy (%) | 12 (2.4) | 5 (2.9) | 7 (2.2) | .633 |
| WHO grade | .807 | |||
| I | 344 (74.8) | 121 (75.2) | 223 (74.6) | |
| II | 98 (21.3) | 35 (21.7) | 63 (21.1) | |
| III | 18 (3.9) | 5 (3.1) | 13 (4.3) | |
| Brain invasion | 108 (21.4) | 42 (23.7) | 56 (17.1) | .773 |
Note:—Embo indicates embolized group; –, not significant; No Embo, non-embolized group; Max., maximum; WHO, World Health Organization.
↵a Significant difference.