Table 2.
Analysis of the association between various factors and preservation of the superior petrosal vein versus sacrifice in 37 patients with identified veins
| Preserved (24 patients) | Sacrificed (13 patients) | P value | |
|---|---|---|---|
| Age (years) | |||
| Range | 27–64 | 15–75 | 0.2028 |
| Median | 51.5 | 59 | |
| Gender | |||
| Male | 11 | 6 | 0.9851 |
| Female | 13 | 7 | |
| Size (mm) | |||
| Range | 22–38 | 27–48 | 0.0021 |
| Median | 26.5 | 34 | |
| Tumor type | |||
| Petroclival | 11 | 8 | 0.1170 |
| Tentorial | 1 | 3 | |
| Anterior petrous | 5 | 1 | |
| Posterior petrous | 7 | 1 | |
| Vein type | |||
| Type I | 1 | 2 | 0.0367 |
| Type II | 7 | 8 | |
| Type III | 16 | 3 | |
| Venous compression | |||
| Yes | 3 | 9 | 0.0008 |
| No | 21 | 4 | |
| Approach | |||
| Simple | 8 | 1 | 0.2054 |
| SM | 6 | 2 | |
| TT | 2 | 2 | |
| SM + TT | 8 | 8 | |
SM suprameatal approach; TT transtentorial approach.