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Subtotal Petrosectomy in Cochlear Implant Surgery: Our Experience

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Indian Journal of Otolaryngology and Head & Neck Surgery Aims and scope Submit manuscript

Abstract

Aims

Subtotal petrosectomy (SP) with cochlear implant (CI) is required in certain specific situations in the management of patients who are candidates for cochlear implants. To study and review the indications, surgical issues, and complications of this procedure.

Materials and Methods

Retrospective review of all patients who underwent subtotal petrosectomy with cochlear implant during the period January 2010–December 2016 at a tertiary care and referral centre.

Results

19 patients underwent 20 subtotal petrosectomy with cochlear implant during this period. One patient had simultaneous bilateral implantation. The indications were previous mastoid cavity in 7 patients, 5 patients had chronic otitis media, inner ear malformations in 3,ossified cochlea in 3 and unfavourable anatomy in 2 patients. Fat or musculoperiosteal flaps were used to obliterate the cavity. Ninety percent of patients underwent single stage surgery and ten percent underwent two stage procedure.Complications were seen in three patients (15%).

Conclusion

SP helps in isolating the cavity from external environment after removal of disease, improves the exposure and access, reduces risk of infection and cerebrospinal fluid (CSF) leaks and facilitates CI. Meticulous surgical technique will reduce the complications and long term follow up is needed to detect entrapped cholesteatoma. Subtotal petrosectomy with blind sac closure of external ear canal is required in certain specific situations. It is a safe and effective surgery with acceptable rate of complications.

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Authors and Affiliations

  1. Department of Otorhinolaryngology and Head–Neck Surgery, Army College of Medical Sciences and Base Hospital, Delhi Cantt, New Delhi, 110010, India

    Rahul Kurkure

  2. Madras ENT Research Foundation (Pvt) Ltd, 1, First Cross Street, Off Second Main Road, RA Puram, Chennai, Tamil Nadu, 600028, India

    Pabina Rayamajhi, Ashish Castellino, Sandhya Dharmarajan, Ruchima Dham, Kiran Natarajan & Mohan Kameswaran

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  1. Rahul Kurkure
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  2. Pabina Rayamajhi
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  4. Sandhya Dharmarajan
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  7. Mohan Kameswaran
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Correspondence to Rahul Kurkure.

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Kurkure, R., Rayamajhi, P., Castellino, A. et al. Subtotal Petrosectomy in Cochlear Implant Surgery: Our Experience. Indian J Otolaryngol Head Neck Surg 72, 320–325 (2020). https://doi.org/10.1007/s12070-020-01819-8

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  • DOI: https://doi.org/10.1007/s12070-020-01819-8

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