Abstract
The amplitude of cochlear-microphonic responses in cats was attenuated up to 18 dB during both induction and recovery from nitrous oxide anesthesia, with smaller changes (up to 3 dB) occurring during the periods of maintained anesthesia. This response variability was clearly related to alterations of middle-ear pressure and could not be attributed to changes in middle-ear muscle or efferent olivocochlear bundle activities. Middle-ear pressure rose during inhalation of nitrous oxide with periodic abrupt returns to baseline levels during the period of maintained anesthesia; pressure became negative after withdrawal of nitrous oxide.
Highlights
LETTERS TO THE EDITOR could be reconciled with current theories is to asswne regardless of whether the stimuli are present at that that the neural representation contains information moment
Two lines of evidence suggested that nitrous oxide administration affected Cochlear microphonic (CM) responses by infiuencing middle-ear pressure
Within S min after discontinuing nitrous oxide, middle-ear pressure gradually decreased below atmospheric levels, stabilizing at values close to -100 mm H20
Summary
LETTERS TO THE EDITOR could be reconciled with current theories is to asswne regardless of whether the stimuli are present at that that the neural representation contains information moment. Title Cochlear-microphonic and middle-ear pressure changes during nitrous oxide anesthesia in cats. Cochlear-Microphonic and Middle-Ear Pressure Changes during Nitrous Oxide Anesthesia in Cats The amplitude of cochlear-microphonic responses in cats was attenuated up to 18 dB during both induction and recovery from nitrous oxide anesthesia, with smaller changes (up to 3 dB) occurring during the periods of maintained anesthesia.
Sign-in/Register to view highlights & summary Sign-in/Register to access full text options 
Talk to us
Join us for a 30 min session where you can share your feedback and ask us any queries you have
Schedule a callDisclaimer: All third-party content on this website/platform is and will remain the property of their respective owners and is provided on "as is" basis without any warranties, express or implied. Use of third-party content does not indicate any affiliation, sponsorship with or endorsement by them. Any references to third-party content is to identify the corresponding services and shall be considered fair use under The CopyrightLaw.
