Is the Modified Translabyrinthine Approach a Reproducible Technique To Obtain Hearing Preservation in Vestibular Schwannoma Surgery?

Skull Base ◽  
2005 ◽  
Vol 15 (S 2) ◽  
Author(s):  
Giuseppe Magliulo ◽  
G. Ralli ◽  
A. Celebrini ◽  
G. Cuiuli ◽  
D. Parrotto ◽  
...  
2018 ◽  
Vol 127 (8) ◽  
pp. 563-567 ◽  
Author(s):  
Kenneth Akakpo ◽  
William J. Riggs ◽  
Michael S. Harris ◽  
Edward E Dodson

Objectives: To describe a case of inadvertent hearing preservation following a classical translabyrinthine resection of a vestibular schwannoma of the internal auditory canal in an otherwise healthy patient. Methods: Herein, we describe the case of an otherwise healthy patient who underwent resection of an intracanalicular vestibular schwannoma via a translabyrinthine approach. Furthermore, as part of an ongoing study aimed at characterizing hearing changes due to intraoperative events, cochlear hair cell and nerve activity were monitored using electrocochleography throughout surgery. Unexpectedly, the patient maintained serviceable hearing following surgery. As a result, we are able to provide electrophysiologic evidence of cochlear hair cell activity at various stages of this surgery. Results: Hair cell responses across tested frequencies were detectable prior to and following completion of the translabyrinthine procedure. Neural integrity of the auditory division of cranial nerve VIII was maintained throughout. Lastly, postoperative audiometric testing supported the patient’s subjective assertion of serviceable hearing in the surgical ear. Conclusion: Our results suggest that some degree of hair cell and neural integrity can be maintained throughout the course of the translabyrinthine approach, and if preservation of the auditory division of cranial nerve VIII is feasible, a functional amount of hearing preservation is attainable.


2008 ◽  
Vol 266 (1) ◽  
pp. 147-150 ◽  
Author(s):  
Stéphane Tringali ◽  
Chantal Ferber-Viart ◽  
Stéphane Gallégo ◽  
Christian Dubreuil

2007 ◽  
Vol 121 (8) ◽  
pp. 736-741 ◽  
Author(s):  
G Magliulo ◽  
A Stasolla ◽  
D Parrotto ◽  
M Marini

AbstractAim:To establish if the computed tomography (CT) and magnetic resonance imaging (MRI) appearances of the vestibule, after the removal of vestibular schwannoma by a modified translabyrinthine approach, correlate with a successful outcome, defined as hearing preservation.Materials and methods:Our study group consisted of 16 patients with vestibular schwannoma. All patients' pre-operative hearing was graded as class one or two according to the Gardner–Robertson scale. On MRI scans, the schwannoma, including the intracanalicular segment, were less than 2 cm in size in all the patients. The intracanalicular portion involved the fundus of the internal auditory canal in seven patients. In the remaining nine patients, the schwannoma had spread to involve two-thirds of the meatus, sparing its lateral third. The state of the labyrinth, in particular the integrity of the vestibule, was evaluated by CT scans and MRI prior to and following surgery.Results:The schwannoma was completely removed in all patients. None showed any signs of persistence or tumoral relapse on the post-operative MRI. The final follow up showed that seven patients had maintained their hearing function (i.e. four patients with class one hearing and three with class two). The MRI vestibular signal on the T2-weighted images was well depicted only in patients with hearing preservation. Bony vestibular integrity was observed in the CT scans of all cases with hearing preservation, and also in three cases with failure of hearing preservation.Conclusion:Our results confirm that total isolation and maintenance of an anatomically intact vestibule, as depicted by MRI examination, is one of the fundamental factors for successful preservation of hearing function following modified translabyrinthine approach schwannoma removal.


2004 ◽  
Vol 113 (2) ◽  
pp. 152-155 ◽  
Author(s):  
Stéphane Tringali ◽  
Claude Jacquet ◽  
Pierre Bertholon ◽  
Jean-Michel Prades ◽  
Larbi Chelikh ◽  
...  

2012 ◽  
Vol 33 (3) ◽  
pp. E11 ◽  
Author(s):  
Christopher M. Nickele ◽  
Erinc Akture ◽  
Samuel P. Gubbels ◽  
Mustafa K. Başkaya

Of the presigmoid approaches, the translabyrinthine approach is often used when a large exposure is needed to gain access to the cerebellopontine angle but when hearing preservation is not a concern. At the authors' institution, this approach is done with the aid of ENT/otolaryngology for temporal bone drilling and exposure. In the present article and video, the authors demonstrate the use of the translabyrinthine approach for resection of a large cystic vestibular schwannoma, delineating the steps of positioning, opening, temporal bone drilling, tumor resection, and closure. Gross-total resection was achieved in the featured case. The patient's postoperative facial function was House-Brackmann Grade II on the side ipsilateral to the tumor, although function improved with time. The translabyrinthine route to the cerebellopontine angle is an excellent approach for masses that extend toward the midline or anterior to the pons. Although hearing is sacrificed, facial nerve function is generally spared.


Author(s):  
Hae Eun Noh ◽  
Ho Young Lee ◽  
Gina Na ◽  
In Seok Moon

Unilateral presentation of vestibular schwannoma with concurrent chronic middle ear disease or cholesteatoma is rare. We report a series of patients with ipsilateral chronic middle ear disease and vestibular schwannoma, which were simultaneously removed via the enlarged translabyrinthine approach. All tumors were near-totally removed, and middle ear disease was completely excised; there were no major postoperative complications such as cerebrospinal fluid leakage, cholesteatoma recurrence, or meningitis. If hearing preservation of the affected ear is not necessary, simultaneous surgical removal of both pathologies is more convenient than staged treatment. The enlarged translabyrinthine approach can achieve complete treatment with one corridor.


2006 ◽  
Vol 121 (1) ◽  
pp. 76-79 ◽  
Author(s):  
L K Springborg ◽  
J B Springborg ◽  
J Thomsen

The translabyrinthine approach is one of the favoured access routes for removal of vestibular schwannomas; however, total hearing loss in the operated ear is a predictable consequence. Here, we report a case in which a patient maintained serviceable hearing almost six years after classic translabyrinthine surgery. Possible explanations for the hearing preservation are discussed, as well as the feasibility of a modified translabyrinthine approach in attempting preservation of hearing following vestibular schwannoma surgery.


Skull Base ◽  
2007 ◽  
Vol 16 (S 1) ◽  
Author(s):  
Stephen Haines ◽  
Samuel Levine ◽  
Scott Turner

2020 ◽  
Vol 133 (3) ◽  
pp. 749-755 ◽  
Author(s):  
Gautam U. Mehta ◽  
Gregory P. Lekovic

Although most widely known as the birthplace of neuro-otology, the House Clinic in Los Angeles has been the site of several major contributions to the field of neurosurgery. From the beginning of the formation of the Otologic Medical Group in 1958 (later renamed the House Ear Clinic), these contributions have been largely due to the innovative and collaborative work of neurosurgeon William E. Hitselberger, MD, and neuro-otologist William F. House, MD, DDS. Together they were responsible for the development and widespread adoption of the team approach to skull-base surgery. Specific neurosurgical advances accomplished at the House Clinic have included the first application of the operative microscope to neurosurgery, the application of middle fossa and translabyrinthine approaches for vestibular schwannoma, and the development of combined petrosal, retrolabyrinthine, and other alternative petrosal approaches and of hearing preservation surgery for vestibular schwannoma. The auditory brainstem implant, invented at the House Clinic in 1979, was the first ever successful application of central nervous system neuromodulation for restoration of function. Technological innovations at the House Clinic have also advanced neurosurgery. These include the first video transmission of microsurgery, the first suction irrigator, the first debulking instrument for tumors, and the House-Urban retractor for middle fossa surgery.


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