Summary
The experiments using guinea pigs and rabbits were carried out to examine cochlear microphonics during hyperbaric oxygenation. The changes of cochlear microphonics were divided into four stages: initial response, oxygen effect, negative oxygen effect and recovery.
High pressure oxygen over 3.0 ATA · O2 is absolutely harmful to the inner ear. Initial impairment of the inner ear function during oxygen compression can be prevented by sympathetic ganglionectomy, however, the drop of cochlear microphonics during oxygen decompression cannot be prevented.
Zusammenfassung
Um das Verhalten der Mikrophonpotentiale der Cochlea unter der Einwirkung von hyperbarem Sauerstoff zu überprüfen, wurden Experimente an Meerschweinchen und Kaninchen durchgeführt. Das Verhalten der Microphonics wurde in 4 Stadien eingeteilt: Anfängliche Reaktion, O2-Wirkung — negative O2-Wirkung und Erholung.
Sauerstoff mit hohem Druck über 3.0 ATA ist für das Innenohr schädlich. Eine anfängliche Beeinträchtigung der Punktion des Innenohres unter Sauerstoffdruck kann durch die Entfernung sympathischer Ganglien verhindert werden. Das Absinken der Mikrophonpotentiale während der Sauerstoffzufuhr ist jedoch nicht zu vermeiden.
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Murata, K., Takeda, T. & Iwai, H. Cochlear microphonics in oxygen at high pressure. Arch Otorhinolaryngol 208, 77–88 (1974). https://doi.org/10.1007/BF00453921
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DOI: https://doi.org/10.1007/BF00453921