Table 5.
The Univariate Analysis of Factors Associated with Long-Term Outcomes in MVD+PSR Group
| Variable | BNI Score 1-2 | BNI Score 3-5 | P value |
|---|---|---|---|
| Sex, n (%) | 1.000 | ||
| Male | 11(26.8%) | 5(27.8%) | |
| Female | 30(73.2%) | 13(72.2%) | |
| Age (years), n (%) | 0.334 | ||
| <60 | 15(36.6%) | 9(50.0%) | |
| ≥60 | 26(63.4%) | 9(50.0%) | |
| Duration of disease (years), n (%) | 0.001 | ||
| <5 | 26(63.4%) | 3(16.7%) | |
| ≥5 | 15(36.6%) | 15(83.3%) | |
| Affected side, n (%) | 0.569 | ||
| Left | 15(36.6%) | 8(44.4%) | |
| Right | 26(63.4%) | 10(55.6%) | |
| Distribution of pain, n (%) | 0.988 | ||
| V1 | 0(0.0%) | 0(0.0%) | |
| V2 | 13(31.7%) | 5(27.8%) | |
| V3 | 6(14.6%) | 2(11.1%) | |
| V1+V2 | 4(9.8%) | 2(11.1%) | |
| V2+V3 | 15(36.6%) | 8(44.4%) | |
| V1+V2+V3 | 3(7.3%) | 1(5.6%) | |
| Type of TN, n (%) | 1.000 | ||
| Typical | 39(95.1%) | 18(100.0%) | |
| Atypical | 2(4.9%) | 0(0.0%) | |
| History of previous ablative procedures, n (%) | 0.233 | ||
| Yes | 3(7.3%) | 4(22.2%) | |
| No | 38(92.7%) | 14(77.8%) | |
| Posterior fossa volume, n (%) | 0.025 | ||
| Normal | 22(53.7%) | 4(22.2%) | |
| Small | 19(46.3%) | 14(77.8%) | |
| Presence of arachnoid thickening adhesion, n (%) | 0.847 | ||
| Yes | 34(82.9%) | 16(88.9%) | |
| No | 7(17.1%) | 2(11.1%) | |
| Type of offending vessel, n (%) | 0.016 | ||
| Pure artery compression | 23(56.1%) | 4(22.2%) | |
| Nonpure artery compression | 18(43.9%) | 14(77.8%) | |
| Decompression degree, n (%) | 0.592 | ||
| Complete decompression from arteries or veins | 28(68.3%) | 11(61.1%) | |
| Incomplete decompression from arteries or veins | 13(31.7%) | 7(38.9%) | |
| Immediate postoperative outcomes, n (%) | 0.150 | ||
| Favorable | 40(97.6%) | 15(83.3%) | |
| Unfavorable | 1(2.4%) | 3(16.7%) |
Note: p values: Pearson’s χ2 test or Fisher’s exact test.
Abbreviations: MVD, microvascular decompression; PSR, partial sensory rhizotomy, TN, trigeminal neuralgia; V1, the first division of the trigeminal nerve; V2, the second division of the trigeminal nerve; V3, the third division of the trigeminal nerve; BNI, Barrow Neurological Institute.