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Subtotal petrosectomy and mastoid obliteration in adult and pediatric cochlear implant recipients
Journal article   Peer reviewed

Subtotal petrosectomy and mastoid obliteration in adult and pediatric cochlear implant recipients

Christopher F Barañano, Jonathan C Kopelovich, Camille C Dunn, Bruce J Gantz and Marlan R Hansen
Otology & neurotology, Vol.34(9), pp.1656-1659
12/2013
DOI: 10.1097/MAO.0b013e3182a006b6
PMCID: PMC3830621
PMID: 24136310
url
http://doi.org/10.1097/MAO.0b013e3182a006b6View
Open Access

Abstract

To investigate the effect of subtotal petrosectomy and mastoid obliteration (SPMO) on the overall success of adult and pediatric cochlear implant (CI) recipients. Retrospective case series. Tertiary care referral center. Thirty-nine ears in 36 patients (23 adults and 13 children) received both surgeries between 1990 and 2012. CI candidates underwent SPMO to permit implantation and minimize the risks of infectious complications in the recipient ear. SPMO was performed before (69.3%), at the time of (25.6%), and after CI (5.13%). Mastoids were obliterated with fat (30.8%), muscle (66.7%), and bone pate (2.56%). Feasibility, complications, and success of SPMO and CI were assessed with standard statistical analysis and Fisher's exact test with 2-sided p values. Ear disease was definitively managed, and CI was successfully placed in all but one case. Complications including abscess (n = 3), subcutaneous emphysema (n = 1), ear canal granulation formation (n = 1), and electrode extrusion (n = 1) occurred in 15.4% of patients. Predisposing syndromes were present in children more often than adults (43.8% versus 13.0%, p = 0.0598). Adults more often than children had previous mastoid surgery for middle ear disease (30.4% versus 0.0%, p = 0.0288). CIs were placed under local anesthetic and sedation (n= 3) and after radiation treatment for nasopharyngeal cancer (n = 2) in adult ears. SPMO is an effective and safe procedure for definitively managing middle ear disease and implanting adult and pediatric CI candidates.
Mastoid - surgery Humans Middle Aged Child, Preschool Infant Male Treatment Outcome Petrous Bone - surgery Cholesteatoma, Middle Ear - surgery Cochlear Implantation - methods Aged, 80 and over Adult Female Aged Retrospective Studies Cochlear Implants Child Ear, Middle - surgery

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