| Cochlear Implantation Via the Middle Fossa Approach: Surgical and Programming Considerations. | |
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MedLine Citation:
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PMID: 23150094 Owner: NLM Status: Publisher |
Abstract/OtherAbstract:
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OBJECTIVES: To report the results of cochlear implantation via the middle fossa approach in 4 patients, discuss the complications, and present a detailed description of the programming specifications in these cases. STUDY DESIGN: Retrospective case review. SETTING: Tertiary-care referral center with a well-established cochlear implant program. PATIENTS: Four patients with bilateral canal wall down mastoid cavities who underwent the middle fossa approach for cochlear implantation. INTERVENTIONS: Cochlear implantation and subsequent rehabilitation. A middle fossa approach with cochleostomy was successfully performed on the most superficial part of the apical turn in 4 patients. A Nucleus 24 cochlear implant system was used in 3 patients and a MED-EL Sonata Medium device in 1 patient. The single electrode array was inserted through a cochleostomy from the cochlear apex and occupied the apical, middle, and basal turns. Telemetry and intraoperative impedance recordings were performed at the end of surgery. A CT scan of the temporal bones was performed to document electrode insertion for all of the patients. MAIN OUTCOME MEASURES: Complications, hearing thresholds, and speech perception outcomes were evaluated. RESULTS: Neural response telemetry showed present responses in all but 1 patient, who demonstrated facial nerve stimulation during the test. Open-set speech perception varied from 30% to 100%, despite the frequency allocation order of the MAP. CONCLUSION: Cochlear implantation via the middle cranial fossa is a safe approach, although it is a challenging procedure, even for experienced surgeons. |
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Authors:
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Ricardo Ferreira Bento; Aline Gomes Bittencourt; Maria Valéria Schmidt Goffi-Gomez; Paola Samuel; Robinson Koji Tsuji; Rubens de Brito |
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Publication Detail:
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Type: JOURNAL ARTICLE |
Journal Detail:
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Title: Otology & neurotology : official publication of the American Otological Society, American Neurotology Society [and] European Academy of Otology and Neurotology Volume: 33 ISSN: 1537-4505 ISO Abbreviation: Otol. Neurotol. Publication Date: 2012 Dec |
Date Detail:
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Created Date: 2012-11-14 Completed Date: - Revised Date: - |
Medline Journal Info:
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Nlm Unique ID: 100961504 Medline TA: Otol Neurotol Country: - |
Other Details:
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Languages: ENG Pagination: 1516-1524 Citation Subset: - |
Affiliation:
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Department of Otolaryngology, University of São Paulo School of Medicine, São Paulo, Brazil. |
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From MEDLINE®/PubMed®, a database of the U.S. National Library of Medicine
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