PMID: 8291430Nov 1, 1993Paper

Inner ear injury caused by air intrusion to the scala vestibuli of the cochlea

Acta Oto-laryngologica
T KobayashiM Takasaka

Abstract

In a previous communication, we demonstrated that the introduction of air into the scala tympani of the cochlea causes a decrease of cochlear potentials; however, the change in endocochlear dc potential (EP) was mild and the decreased cochlear microphonics (CM) and compound action potentials (CAP) were, at least partially, reversible. In contrast, we have now found that air perfusion (3-60 microliters/min) in the scala vestibuli decreased cochlear potentials more drastically than that in the scala tympani. The change in the EP after air perfusion in the scala vestibuli was characterized by a decrease of the negative EP in response to anoxia. The CM drastically decreased upon the initiation of air perfusion and no recovery was observed after refilling of the perilymph. Histological examination showed collapse of Reissner's membrane in 12 out of 17 cochleas examined. The extent and frequency of the collapse increased with an increase in the amount of air perfused in the scala vestibuli. As the minimal amount of air needed to cause inner ear damage by air perfusion in the scala vestibuli is as small as 3 microliters, it is possible that the prognosis is worse in cases with fistula of the oval window compared to that of the round w...Continue Reading

References

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Citations

Apr 17, 2003·International Journal of Pediatric Otorhinolaryngology·Menachem GrossRon Eliashar
Apr 22, 2008·The Laryngoscope·Hyun-Jae WooChang Hoon Bai
May 24, 2017·The Journal of Laryngology and Otology·D YamauchiY Katori
Apr 29, 2004·The Annals of Otology, Rhinology, and Laryngology·Patrick J Collison, Kevin C Pons
Oct 7, 2008·The Annals of Otology, Rhinology, and Laryngology·Jacinto de NegreirosCarlos A Oliveira
May 17, 2011·Otolaryngology--head and Neck Surgery : Official Journal of American Academy of Otolaryngology-Head and Neck Surgery·Ryoukichi IkedaToshimitsu Kobayashi
Jan 16, 2016·Journal of Audiology & Otology·Joong Seob LeeHyung-Jong Kim
Dec 18, 2018·The Annals of Otology, Rhinology, and Laryngology·Francesco ComacchioMarta Mion
Nov 29, 2007·Otology & Neurotology : Official Publication of the American Otological Society, American Neurotology Society [and] European Academy of Otology and Neurotology·William W Lao, John K Niparko
Jan 5, 2012·Otology & Neurotology : Official Publication of the American Otological Society, American Neurotology Society [and] European Academy of Otology and Neurotology·Hiroshi HidakaToshimitsu Kobayashi
Dec 11, 2019·Otology & Neurotology : Official Publication of the American Otological Society, American Neurotology Society [and] European Academy of Otology and Neurotology·Kiyoshi OdaNaohiro Yoshida
Nov 7, 2019·BMJ Case Reports·Patricia S GomesRui Fonseca
May 24, 2020·Emergency Radiology·Gamze TürkAli Koç
Nov 10, 2017·Ear, Nose, & Throat Journal·Thomas J MuellemanHinrich Staecker
Jan 23, 2014·Otology & Neurotology : Official Publication of the American Otological Society, American Neurotology Society [and] European Academy of Otology and Neurotology·Hidetoshi OshimaToshimitsu Kobayashi
Apr 22, 2021·European Archives of Oto-rhino-laryngology : Official Journal of the European Federation of Oto-Rhino-Laryngological Societies (EUFOS) : Affiliated with the German Society for Oto-Rhino-Laryngology - Head and Neck Surgery·Cecilia BottiAngelo Ghidini
Jun 27, 2021·Otology & Neurotology : Official Publication of the American Otological Society, American Neurotology Society [and] European Academy of Otology and Neurotology·Daisuke YamauchiYukio Katori
Nov 3, 2021·Otology & Neurotology : Official Publication of the American Otological Society, American Neurotology Society [and] European Academy of Otology and Neurotology·Se Yeon ImJin Woong Choi

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