Table 4.
Intraoperative Findings And Treatments In The DR And Non-DR Groups
| Variable | DR | Non-DR | P value |
|---|---|---|---|
| Posterior fossa volume | 0.910 | ||
| Normal | 9(45.0%) | 34(43.6%) | |
| Narrow | 11(55.0%) | 44(56.4%) | |
| Arachnoid | 0.084 | ||
| Normal | 1(5.0%) | 17(21.8%) | |
| Thickening or adhesion | 19(95.0%) | 61(78.2%) | |
| Only venous compression | 0.200 | ||
| Yes | 0(0.0%) | 6(7.7%) | |
| No | 20(100.0%) | 72(92.3%) | |
| Double-artery compression | 0.029 | ||
| Yes | 5(25.0%) | 6(7.7%) | |
| No | 15(75.0%) | 72(92.3%) | |
| Method | 0.457 | ||
| MVD | 9(45.0%) | 27(34.6%) | |
| PSR | 0(0.0%) | 4(5.1%) | |
| MVD+PSR | 11(55.0%) | 47(60.3%) | |
| Decompression | 0.371 | ||
| Sufficient | 17(85.0%) | 59(75.6%) | |
| Insufficient | 3(15.0%) | 19(24.4%) |
Notes: P value: Pearson’s χ2 test or Fisher’s exact test. Bold text represents significance.