Table 3 Surgical data
n | Percentage | ||
|---|---|---|---|
Approach | Pterional | 24 | 46 |
Frontal | 21 | 40 | |
Parietal | 7 | 14 | |
Navigation | Yes | 21 | 40 |
No | 31 | 60 | |
Extent of excision (Simpson grade) [27] | 1 – Macroscopically complete removal of dura, bone | 39 | 75 |
2 – Macroscopically complete removal, dural coagulation | 11 | 21 | |
3 – Complete tumour resection, dura not coagulated | 2 | 4 | |
Plane | Difficult (invasion of the pia mater and brain) | 14 | 27 |
Good (pial plane) | 38 | 73 | |
Tumour vascularity | High | 2 | 4 |
Medium | 29 | 56 | |
Low | 21 | 40 | |
Mean ± SD | Median | Range | |
Length of anesthesia (minutes) | 385 ± 159 | 355 | 195 to 870 |
Length of surgery (minutes) | 295 ± 154 | 240 | 75 to 765 |
Blood loss (cc) | 345 ± 189 | 300 | 50 to 1,000 |