The role of subtotal petrosectomy in cochlear implant recipients

Abstract

Describe the indications and outcome of subtotal petrosectomy for cochlear implant recipients. Tertiary care referral center. This is a retrospective study of all subtotal petrosectomies and cochlear implants performed between January 2012 and December 2014. We review the charts of these patients collecting the following data: age, gender, otologic history, audiologic tests, indication of subtotal petrosectomy, data of surgery, surgical and immediate complications, late complications and follow-up of for at least 2.5 years. 12 cases of subtotal petrosectomies with cochlear implantation in 11 patients were performed during this period; 2 children and 10 adults. The indication for a cochlear implant was in 10 cases bilateral severe to profound sensorineural hearing loss and in the remaining 2 cases was asymmetric hearing loss or unilateral hearing loss. The reason for performing a subtotal petrosectomy was chronic otitis media with or without cholesteatoma, radical cavities from previous surgeries or electrode extrusion of previously implanted devices. All cases were performed in one stage. One patient had an infectious complication that required revision surgery and finally an explantation. No other complications are described. Subtotal petrosectomy combined with cochlear implantation is a procedure required in certain situations. It is an effective and safe procedure for managing middle ear problems and creating a safe cavity to receive a cochlear implant either in adults and children.

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