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Peer-reviewed veterinary case report

Pseudomonas aeruginosa infection in the hypoventilated middle ear: an experimental model.

Journal:
Acta oto-laryngologica
Year:
2005
Authors:
Trinidad, Almudena et al.
Affiliation:
Department of Otorhinolaryngology · Spain
Species:
rodent

Abstract

CONCLUSION: This is a suitable model for studying different aspects of the pathophysiology of chronic suppurative otitis media. OBJECTIVE: To analyze the methodological features of an animal model of chronic suppurative otitis media induced by intratympanic inoculation of Pseudomonas aeruginosa. MATERIAL AND METHODS: Otitis media was induced by inoculation of P. aeruginosa through the inferior aspect of the rat bulla and cauterization of the Eustachian tube via a transpalatal approach. Inspection of the tympanic membrane, culturing of middle ear effusion and processing of the temporal bones for light microscopy were performed. RESULTS: Abnormal otomicroscopic findings and persistence of infection were correlated with the histopathological changes found in middle ear tissues.

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Original publication: https://pubmed.ncbi.nlm.nih.gov/15966695/