Abstract
We selected 194 patients who visited Kitano Hospital with ear discharge during 2 year period from January, 1981 to December, 1982. We performed a retrospective study of chronic otitis media.1) The results of the antimicrobial agent susceptibility test revealed that SBPC was the most effective for Staphylococcus epidermidis and Proteus species. Minocyclin was the most effective for Pseudomonas species.2) Pseudomonas species were isolated with a higher incidence from otorrhea of eosinophil-negative groups.3) Proteus and Pseudomonas species were isolated with significantly higher incidences from otorrhea of patients operated with types III, IV and Columella Type tympanopalsty.4) Proteus and Pseudomonas species were isolated with higher incidences from otorrhea of those who had symptoms such as dizziness, vertigo or tinnitus.
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