Table 3.
Interventions and results
| Patient ID | Tumor location | Figure no. | Management | CI type | Postop. Calorics DP (%) |
Postop. vHIT Gain (Anterior; Lateral; Posterior) |
Postop. WRS65dB (%) |
|---|---|---|---|---|---|---|---|
| 1 | Intravestibular | – | Tu-Ext. via labyrinthectomy + CI | Med-ElSonata | n.a. | n.a. | 55 |
| 2 | Intravestibular | 2 | Tu-Ext. via labyrinthectomy + CI | Med-El Mi1200 Flex28 | n.a. | n.a. | 45 |
| 3 | Intracochlear (basal) | 3, 4 | Tu-Ext. via extended cochleostomy + CI | Cochlear CI24RE (CA) |
– | 0.85; 1.02; 0.91 | 90 |
| 4 | Intracochlear (apico- und mediocochlear) | 1B | W&T&S | – | n.a. | n.a. | n.a. |
| 5 | Intracochlear (apical) | – | W&T&S | – | n.a. | n.a. | n.a. |
| 6 | Multilocular: intravestibular, intrameatal, intracochlear (basal) |
1C | W&T&S | – | n.a. | n.a. | n.a. |
| 7 | Intracochlear (basal) |
5 | Tu-Ext. via partial cochleoectomy, reconstruction and CI dummy insertion | Dummy | – | – | n.a. |
| 8 | Intravestibular | 1A | Tu-Ext. via labyrinthectomy + CI | Med-El Mi1200 Flex28 | n.a. | n.a. | 25 |
| 9 | Intracochlear | 1D, 7 | Tu-Ext. via subtotal cochleoectomy, reconstruction and CI dummy insertion | Dummy | 36.3 | 0.77; 1.02; 1.17 | n.a. |
| 10 | Transotic and CPA | 1F,8 | Tu-Ext. translabyrinthine/transotic, blind sack closure of EAC | Cochlear nerve and cochlea not preserved | n.a. | n.a. | n.a. |
| 11 | Intracochlear | 6 | Tu-Ext. via subtotal cochleoectomy, reconstruction and CI | Cochlear CI 512 (CA) |
0 | 0.74; 1.11; 0.75 | 0 |
| 12 | Transmodiolar and CPA | 1E | Tu-Ext. translabyrinthine (transmastoidal) and transotic (transmeatal) | Cochlear nerve and cochlea not preserved | 5.2 | – | n.a. |
W&T&S “wait-and-test-and-scan,” WRS 6–12-month postoperative word recognition score (monosyllables in quiet at 65 dB SPL), vHIT video head impulse test, CI cochlear implant, DP directional preponderance, Tu-Ext. tumor extirpation, EAC external auditory canal, CPA cerebellopontine angle, n.a. not applicable