ISSN 2667-7466 | E-ISSN 2667-7474
Original Article
Subtotal Petrosectomy and Blind Sac Closure of the External Auditory Canal: Single-Center Experience with 44 Cases
1 Department of Otolaryngology, Bozyaka Training and Research Hospital, İzmir, Turkey  
Turk Arch Otorhinolaryngol 2014; 52: 81-86
DOI: 10.5152/tao.2014.675
Key Words: Subtotal petrosectomy, cavity obliteration, chronic otitis media, cochlear implantation, active middle ear implants

Objective: To share our experiences with subtotal petrosectomy and blind sac closure of the external auditory canal with cavity obliteration.


Methods: Retrospective analysis of 44 patients after subtotal petrosectomy and cavity obliteration between January 2009 and April 2013. Indications of operation, surgical findings, and complications were recorded.


Results: Twenty-three male and 21 female patients with a mean age of 42±18 (8-73) years were evaluated. The postoperative mean follow-up period was 22±11 (9-52) months. 7 had primary cavity obliteration (6 with supralabirentin cholesteatoma, 1 with facial nerve schwannoma; all had total sensorineural hearing loss on the operated side). Obliteration was performed as a secondary procedure in 19 patients who have uncontrolled otorrhoea and unserviceable hearing. Procedure was performed in order to secure the implant during the implantation of Carina device in 2, active middle ear implant (vibrant soundbridge-VSB) in 4 and cochlear implant in 8 patients who have dry mastoidectomy cavities. Removing the hearing devices performed simultaneously with the procedure in remaining 4 patients. Postoperative complication was observed in 1 patient (otorrhea and mastoid cavity infection). Pus had been drained under general anesthesia without any problems. Three patients had local skin necrosis, which was repaired under local anesthesia.


Conclusion: Subtotal petrosectomy and cavity obliteration procedure can be a good alternative to prevent recurrent infections and cavity problems in patients who have safe cavities with unserviceable hearing. Additionally it is gaining more popularity in chronic otitis media patients to secure the implant electrode and to prevent cavity infection if they need to be rehabilitated with cochlear or active middle ear implants.

Key Words
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