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  • Title: Pseudo mastoid obliteration with conchal cartilage may be a safe alternative technique for cochlear implantation in canal wall down mastoidectomy with large meatoplasty.
    Author: Carnevale C, Til-Pérez G, Arancibia-Tagle D, Tomás-Barberán M, Sarría-Echegaray P.
    Journal: J Laryngol Otol; 2020 Jun; 134(6):493-496. PubMed ID: 32618542.
    Abstract:
    OBJECTIVE: Safe cochlear implantation is challenging in patients with canal wall down mastoid cavities, and the presence of large meatoplasties increases the risk of external canal overclosure. This paper describes our results of obliteration of the mastoid cavity with conchal cartilage as an alternative procedure in cases of canal wall down mastoidectomy with very large meatoplasty. METHODS: The cases of seven patients with a canal wall down mastoidectomy cavity who underwent cochlear implantation were retrospectively reviewed. Post-operative complications were analysed. The mean follow-up duration was 4.5 years. RESULTS: There was no hint of cholesteatoma recurrence and all patients have been free of symptoms during follow up. Only one patient showed cable extrusion six months after surgery, and implantation of the contralateral ear was needed. CONCLUSION: Pseudo-obliteration of the mastoid cavity with a cartilage multi-layered palisade reconstruction covering the electrode may be a safe alternative in selected patients with a large meatoplasty.
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