Evidence of surface active agent in the Eustachian tube

P. N. Rapport, D. J. Lim, H. S. Weiss

Research output: Contribution to journalArticlepeer-review

4 Scopus citations


It has been postulated that there is a surface active agent (SAA) in the Eustachian tube which normally facilitates tubal opening but which may be inactivated by infection, resulting in poor tubal function. The present experiment was an attempt to demonstrate the effect of this surface active agent by measuring changes in Eustachian tube opening pressure following removal of the suspected tubal surface active agent by saline. To make these measurements, air or normal saline was injected into the middle ear of 15 fresh guinea pig temporal bones until pressure was sufficient to open the Eustachian tube.

Original languageEnglish (US)
Pages (from-to)169-170
Number of pages2
JournalAnnals of Otology, Rhinology and Laryngology
Issue numberSup.25
StatePublished - 1976

ASJC Scopus subject areas

  • Otorhinolaryngology


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