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Effects of polylactic acid film on middle ear mucosa and cochlear function in Guinea pigs

  • Otology
  • Published:
European Archives of Oto-Rhino-Laryngology Aims and scope Submit manuscript

Abstract

Our aim was to assess the effects of polylactic acid (PLA) on middle ear mucosa and cochlea, to be used as a film barrier for postoperative adhesion prevention in the middle ear. Twenty-one albino Guinea pigs were included in the study. A window was opened on both tympanic bulla and on one side PLA material was placed in the middle ear and on the other side only fenestration was performed and used as a control. All Guinea pigs underwent evaluation of tympanic membranes microscopically; functional hearing was analyzed by auditory brainstem responses preoperatively, in the first and the sixth month. All Guinea pigs were killed on the sixth month for histopathologic evaluation of their temporal bones. There was no statistical difference between both groups regarding hearing thresholds, interpeak wave latencies preoperatively and on first and the sixth months postoperatively. Histopathological evaluation revealed no specific changes. There was a mild local inflammation both in the PLA implanted and control ears. PLA film barrier most likely has no toxic effects on Guinea pig middle ear and does not show any ototoxic side effects.

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Authors and Affiliations

  1. Department of Otolaryngology, Antalya Atatürk Education and Research Hospital, Antalya, Turkey

    Nuray Ensari

  2. Department of Otolaryngology, Faculty of Medicine, Gazi University, Ankara, Turkey

    Hakan Tutar, Mehmet Birol Ugur, Yıldırım A. Bayazıt & Nebil Goksu

  3. Department of Pathology, Faculty of Medicine, Gazi University, Ankara, Turkey

    Ozgur Ekinci

  4. Audiology Unit, Faculty of Medicine, Gazi University, Ankara, Turkey

    Cagil Gokdogan

Authors
  1. Nuray Ensari
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  2. Hakan Tutar
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  3. Ozgur Ekinci
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  4. Mehmet Birol Ugur
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  5. Yıldırım A. Bayazıt
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  6. Cagil Gokdogan
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  7. Nebil Goksu
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Correspondence to Hakan Tutar.

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Ensari, N., Tutar, H., Ekinci, O. et al. Effects of polylactic acid film on middle ear mucosa and cochlear function in Guinea pigs. Eur Arch Otorhinolaryngol 272, 1091–1097 (2015). https://doi.org/10.1007/s00405-014-2904-y

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  • DOI: https://doi.org/10.1007/s00405-014-2904-y

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