Cochlear Implantation in an Intralabyrinthine Acoustic Neuroma Patient after Resection of an Intracanalicular Tumor

Tono, Takeshi; Ushisako, Yasuaki; Morimitsu, Tamotsu

doi:10.1159/000058978

Cited by 12 publications

(15 citation statements)

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“…In the 1990s, Cueva [1992] reported on auditory sensations elicited by electrical promontory stimulation (EPS) in a patient with preserved cochlear nerve and deafness after VS resection, demonstrating the theoretical feasibility of cochlear implantation in deafened NF2 patients with intact cochlear nerve after VS removal. Since then, histological [Belal, 2001] and clinical studies Hulka et al, 1995;Tono et al, 1996;Graham et al, 1999;Ahsan et al, 2003;Nolle et al, 2003;Aristegui and Denia, 2005] confirmed that cochlear implantation is possible in at least a subset of this special population of patients. Today, we can offer 2 options for hearing restoration, cochlear or auditory brainstem implantation, to NF2 deafened patients with an anatomically preserved cochlear nerve.…”

Section: Introductionmentioning

confidence: 88%

Hearing Rehabilitation in Neurofibromatosis Type 2 Patients: Cochlear versus Auditory Brainstem Implantation

Vincenti¹,

Pasanisi²,

Guida³

et al. 2008

Audiol Neurotol

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Objective: We aimed to evaluate and compare the auditory performance of neurofibromatosis type 2 (NF2) patients with bilateral total deafness fitted with cochlear or auditory brainstem implants. Patients and Methods: A retrospective case review was performed. Nine patients suffering from NF2 who underwent hearing rehabilitation by means of cochlear (4 patients) or auditory brainstem (5 patients) implantation participated in the study. Postoperative auditory performance was assessed using closed- and open-set tests. Results: In the group of patients fitted with a cochlear implant, 3 subjects achieved open-set speech recognition abilities comparable to those of standard adult postlingual implant patients; the remaining patient scored 0% in all open-set format tests, reporting benefits only in environmental sound detection and lip-reading. Among the 5 patients who underwent auditory brainstem implantation, 1 reached good open-set speech recognition skills, scoring 70% in the common phrases comprehension test, and she was able to communicate on the telephone. Two other patients achieved open-set speech understanding (respectively, 33 and 41% in the common phrases comprehension test), reporting daily use of their device. The remaining 2 patients did not achieve any level of open-set speech perception, obtaining only improved access to environmental sound and lip-reading skills. Conclusions: Our study confirmed literature data reporting that cochlear implantation may offer open-set speech communication in NF2 patients. In this small cohort, cochlear implant patients performed better than auditory brainstem implant patients, even if variability in auditory performance was observed with both devices. More studies are needed in order to clarify the role and reliability of electrophysiological tests in predicting the residual functionality of the cochlear nerve after tumor removal.

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Section: Introductionmentioning

confidence: 88%

Hearing Rehabilitation in Neurofibromatosis Type 2 Patients: Cochlear versus Auditory Brainstem Implantation

Vincenti¹,

Pasanisi²,

Guida³

et al. 2008

Audiol Neurotol

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“…BCHA or BAHA have been standard treatments for post-surgical unilateral hearing impairment, but are limited in their capacity to improve hearing in the affected ear. Reports from several centers on CI and labyrinthectomy or vestibular schwannoma resection show a favorable prognosis for concurrent or post-operative CI 79121314. In fact, the prognosis was similar to that of unilaterally deaf patients treated with CI.…”

Section: Discussionmentioning

confidence: 99%

“…Since the indications for CI have recently expanded, CI has been suggested by many as an appropriate adjunctive treatment to vestibular schwannoma resection 789. Patients with bilateral vestibular schwannomas or with a schwannoma in the only-hearing ear are candidates for CI.…”

Section: Introductionmentioning

confidence: 99%

Simultaneous Translabyrinthine Tumor Removal and Cochlear Implantation in Vestibular Schwannoma Patients

2016

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Refinement of surgical techniques has allowed hearing preservation after tumor resection to be prioritized. Moreover, restoration of hearing after tumor removal can be attempted in patients with bilateral vestibular schwannomas or those with a schwannoma in the only-hearing ear. Cochlear implantation (CI) has emerged as a proper method of acoustic rehabilitation, provided that the cochlear nerve remains intact. Studies of electrical promontory stimulation in patients after vestibular schwannoma resection have demonstrated favorable results. We describe herein two cases of hearing rehabilitation via CI implemented at the time of vestibular schwannoma resection. Tumors were totally removed, and cochlear implant electrodes were successfully inserted in both cases. Also, post operative CI-aided hearing showed improved results.

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“…He highlights that tumors invading the IAC (transotic, TMO, and TMA) more often require surgical treatment (46%) than those confined to the labyrinth (7%). The auditory level also affects this decision (7,22,32). Neff et al proposed an algorithm based on the hearing threshold and the percentage of discrimination that they considered useful: superior to 50 dB and 50%, respectively.…”

Section: Discussionmentioning

confidence: 99%

Intralabyrinthine Schwannomas

Bouchetemble

Heathcote²,

Tollard³

et al. 2013

Otology &Amp; Neurotology

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Frequency of ILS is underestimated because of poor diagnostic criteria. These tumors have often been described as having features, which resemble Ménière's disease, which is not found in our series. In the absence of tumor progression or disabling symptoms, their management is surveillance/medical, and when surgery is considered, facial paralysis and recurrence rates seem low. The treatment of IAC-ILS differs from that of ILS.

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Cochlear Implantation in an Intralabyrinthine Acoustic Neuroma Patient after Resection of an Intracanalicular Tumor

Cited by 12 publications

References 0 publications

Hearing Rehabilitation in Neurofibromatosis Type 2 Patients: Cochlear versus Auditory Brainstem Implantation

Hearing Rehabilitation in Neurofibromatosis Type 2 Patients: Cochlear versus Auditory Brainstem Implantation

Simultaneous Translabyrinthine Tumor Removal and Cochlear Implantation in Vestibular Schwannoma Patients

Intralabyrinthine Schwannomas

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