E-ISSN 2602-4837
The Turkish Journal of Ear Nose and Throat Evaluation of cochlear implantation effects on middle ear pressure [Tr-ENT]
Tr-ENT. 2020; 30(1): 14-18 | DOI: 10.5606/Tr-ENT.2020.43265

Evaluation of cochlear implantation effects on middle ear pressure

Şenol Acar1, Hakan Avcı2, Mehmet Melih Çiçek3, Beldan Polat4, Kadir Serkan Orhan4
1Department of Otorhinolaryngology, Bursa Acıbadem Hospital, Bursa, Turkey
2Department of Otorhinolaryngology, University of Health Sciences, Kartal Dr. Lütfi Kırdar Training and Research Hospital, Istanbul, Turkey
3Department of Otorhinolaryngology, Bahçelievler Memorial Hospital, Istanbul, Turkey
4Department of Otorhinolaryngology, Istanbul University, Istanbul Faculty of Medicine, Istanbul, Turkey

INTRODUCTION: This study aims to investigate the effects of cochlear implantation on middle ear aeration, tympanometric values, and otitis media with effusion (OME) occurrence.
METHODS: This prospective study conducted between February 2010 and May 2013 included 100 ears of 100 patients (57 males, 43 females; mean age 6.4±2.8 years; range, 1 to 18 years) who underwent cochlear implantation and had no prior history of ear surgery. Patients who had middle and/or external ear anomalies were excluded. During the preoperative evaluation, otoscopic, rhinoscopic and nasopharynx examinations, along with tympanometric investigations were performed. Postoperative tympanometric evaluations over 12-36 months’ follow-up were performed and the values were compared, respectively.
RESULTS: In the postoperative otoscopic examinations, tympanic membrane retraction was observed in 14 ears. The mean values of compliance and gradient were significantly lower in the postoperative evaluations. The peak pressure and external ear canal volume measurements were not significantly different after cochlear implantation surgery. The mean preoperative value of peak pressure of the male patients was significantly lower than that in the female patients. The mean preoperative value of external ear canal volume was lower in patients with adenoid hypertrophy. These differences were statistically significant (p<0.05).
DISCUSSION AND CONCLUSION: The values of compliance and gradient were lower in postoperative tympanograms. Nevertheless, this does not mean that patients with low compliance and gradient values are more likely to develop OME or acute otitis media. Males and patients with adenoid hypertrophy also have a predisposition to OME.

Keywords: Cochlear implantation, middle ear, otitis media with effusion.

Şenol Acar, Hakan Avcı, Mehmet Melih Çiçek, Beldan Polat, Kadir Serkan Orhan. Evaluation of cochlear implantation effects on middle ear pressure. Tr-ENT. 2020; 30(1): 14-18

Corresponding Author: Hakan Avcı, Türkiye
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