PMID: 2239209Sep 1, 1990Paper

Effect of perilymphatic air perfusion on cochlear potentials

Acta Oto-laryngologica
T KobayashiT Takasaka

Abstract

Perilymphatic fistula is now widely recognized to cause acute profound hearing loss. It is still controversial, however, which mechanism it is that causes the reversible hearing loss. Recently, it has been suggested by two groups of researchers that the intrusion of air bubbles into the perilymphatic space (a condition called pneumolabyrinth or aerolabyrinth) through the ruptured labyrinthine window(s) may be one of the causes. In order to examine the mechanism underlying the hearing loss associated with pneumolabyrinth, the perilymphatic space of the guinea pig cochlea was perfused with air and cochlear potentials were recorded. Although perfusion of the scala tympani with air at a rate as high as 200 microliter/min caused an immediate and drastic decrease of the cochlear microphonics (CM) and the compound action potential (AP), it had little effect on the endocochlear dc potential (EP) during perfusion for 20 min. A decline in EP was seen in half the ears, but only when the duration of perfusion exceeded 30 min. These results show that the EP has an amazing resistance to air trapped in the scala tympani of the cochlea and that the initial decrease of hearing acuity after the elimination of perilymph from the scala tympani (or...Continue Reading

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Citations

Apr 17, 2003·International Journal of Pediatric Otorhinolaryngology·Menachem GrossRon Eliashar
Jul 16, 2002·Hearing Research·Paul K Foster, Anne E Luebke
Nov 1, 1993·Acta Oto-laryngologica·T KobayashiM Takasaka
Nov 20, 2014·Otology & Neurotology : Official Publication of the American Otological Society, American Neurotology Society [and] European Academy of Otology and Neurotology·Hyo Geun ChoiHyung-Jong Kim
Jul 1, 1997·The Annals of Otology, Rhinology, and Laryngology·T KobayashiT Takasaka
Apr 29, 2004·The Annals of Otology, Rhinology, and Laryngology·Patrick J Collison, Kevin C Pons
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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
May 24, 2020·Emergency Radiology·Gamze TürkAli Koç
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
Nov 10, 2017·Ear, Nose, & Throat Journal·Thomas J MuellemanHinrich Staecker
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
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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