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The gas of the tympanic bulla was measured using 18 normal and 14 tube-obstructed guinea pigs. The concentrations of CO2 and O2 were 4.8 +/- 1.0% and 7.2 +/- 1.8% in normal animals, and 4.3 +/- 1.6% and 8.1 +/- 2.0% in tube-obstructed animals, respectively. The bulla was opened to room air and then closed again. The recovery process of each gas was examined. In normal animals, CO2 and O2 were exponentially changed toward the pre-open value with time. The time constants of this recovery process were 15 min and 97 min in CO2 and O2, respectively. In tube-obstructed animals, however, this quick recovery of CO2 was significantly delayed (time constant, 50 to 80 min), although there was no effect upon the recovery of O2. This delayed recovery of CO2 is likely to be due to the edema of the mucous membrane.
J Kusakari, and
K Ohyama, and
N Inamura, and
K Ikeda, and
E Arakawa, and
Y Kaneko, and
T Takasaka, and
K Kawamoto
January 1987,
Scandinavian journal of clinical and laboratory investigation. Supplementum,
J Kusakari, and
K Ohyama, and
N Inamura, and
K Ikeda, and
E Arakawa, and
Y Kaneko, and
T Takasaka, and
K Kawamoto
May 2002,
International journal of pediatric otorhinolaryngology,
J Kusakari, and
K Ohyama, and
N Inamura, and
K Ikeda, and
E Arakawa, and
Y Kaneko, and
T Takasaka, and
K Kawamoto
July 1994,
Nihon Jibiinkoka Gakkai kaiho,
J Kusakari, and
K Ohyama, and
N Inamura, and
K Ikeda, and
E Arakawa, and
Y Kaneko, and
T Takasaka, and
K Kawamoto
May 1972,
The Journal of laryngology and otology,
J Kusakari, and
K Ohyama, and
N Inamura, and
K Ikeda, and
E Arakawa, and
Y Kaneko, and
T Takasaka, and
K Kawamoto
January 1976,
The Annals of otology, rhinology, and laryngology,
J Kusakari, and
K Ohyama, and
N Inamura, and
K Ikeda, and
E Arakawa, and
Y Kaneko, and
T Takasaka, and
K Kawamoto
May 1992,
The Annals of otology, rhinology, and laryngology,
J Kusakari, and
K Ohyama, and
N Inamura, and
K Ikeda, and
E Arakawa, and
Y Kaneko, and
T Takasaka, and
K Kawamoto
January 1994,
Acta oto-rhino-laryngologica Belgica,
J Kusakari, and
K Ohyama, and
N Inamura, and
K Ikeda, and
E Arakawa, and
Y Kaneko, and
T Takasaka, and
K Kawamoto
June 1979,
Clinical otolaryngology and allied sciences,
J Kusakari, and
K Ohyama, and
N Inamura, and
K Ikeda, and
E Arakawa, and
Y Kaneko, and
T Takasaka, and
K Kawamoto
October 1994,
APMIS : acta pathologica, microbiologica, et immunologica Scandinavica,
J Kusakari, and
K Ohyama, and
N Inamura, and
K Ikeda, and
E Arakawa, and
Y Kaneko, and
T Takasaka, and
K Kawamoto
January 2005,
Veterinary radiology & ultrasound : the official journal of the American College of Veterinary Radiology and the International Veterinary Radiology Association,
