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Original Article

The Middle Ear Gas Composition in Air-Ventilated Dogs

, , &
Pages 105-108 | Received 05 Feb 1979, Published online: 08 Jul 2009
 

Abstract

The middle ear gas composition has been examined in 5 air-ventilated dogs under sodium thiopentone anesthesia. The gas samples were obtained by trans-tympanic puncture and analysed by gas chromatography. The following mean ± S.D. gas composition was obtained: N283.2 ± 5.0; O2 12.1 ± 2.2; and CO2 4.7 ± 0.7.

Zusammenfassung

Die Zusammensetzung der Gase im Mittelohr ist bei 5 normalen Hunden unter allgemeiner Anästhesie mittels Sodium Thiopentone untersucht wurden. Die Gasproben wurden durch Trommelfell Punktion gewonnen und gas-chromatographisch analysiert. Folgende Gasmittelwerte ± Standardabweichung wurden erhalten: N2 83.2 ± 5.0%; O2 12.1 ± 2.2%undCO2 4.7 ± 0.7%.

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