Table 2.
Evolution of signs and symptoms following surgical excision
| Approach |
||||||||||
|---|---|---|---|---|---|---|---|---|---|---|
| TL group |
RS group |
|||||||||
| Initial presentation (%) | Available cases‡ | Worsened (%) | Stable (%) | Improved (%) | Initial presentation (%) | Available cases‡ | Worsened (%) | Stable (%) | Improved (%) | |
| Ataxic gait* | 41/112 (36.6)† | 96 | 11 (11.5) | 61 (63.5) | 24 (25) | 20/39 (51.3) | 25 | 7 (28) | 17 (68) | 1 (4) |
| Headache | 27/112 (24.1)† | 95 | 6 (6.5) | 74 (77.9) | 15 (15.8) | 18/39 (46.2) | 22 | 3 (13.6) | 15 (68.2) | 4 (18.2) |
| Tinnitus* | 92/114 (80.7)† | 106 | 2 (1.9) | 37 (34.9) | 67 (63.2) | 22/38 (57.9)† | 36 | 1 (2.8) | 21 (58.3) | 14 (38.9) |
| Vertigo | 46/112 (41.1)† | 107 | 12 (11.2) | 71 (66.4) | 24 (22.4) | 24/39 (61.5) | 36 | 3 (8.3) | 25 (69.4) | 8 (22.2) |
| CN injuries* | 7/129 (7.4) | 129 | 4 (3.1) | 124 (96.1) | 1 (0.8) | 7/39 (17.9) | 39 | 6 (15.4) | 33 (84.6) | 0 (0) |
Worsening, stability and improvement are obtained by comparing the postoperative to the preoperative signs and symptoms.Postoperative data was obtained at one month with the exception of CN injuries that was obtained in the immediate postoperative period.
*
p<0.05 between both groups according to Pearson chi-square test, revealing a more favorable evolution for TL group patients,
†
data was not available for all cases at initial presentation,
‡
available cases for two-sided analysis.
TL: translabyrinthine, RS: retrosigmoid, CN: cranial nerve