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Korean Journal of Otorhinolaryngology-Head and Neck Surgery > Volume 10(1); 1967 > Article
Korean Journal of Otorhinolaryngology-Head and Neck Surgery 1967;10(1): 31-4.
Bacteriological Studies for the Floras in the Mastoid Cavities of Cases of Mastoidectomy Patients
Byoung Hee Yoo, MD
Department of Otolaryngology, College of Medicine, Seoul National University, Seoul, Korea
慢性中耳炎 手術例에 있어서의 乳樣洞內의 細菌學的 考察
서울大學校 醫科大學 耳鼻咽喉科學敎室

For 40 cases of chronic otitis media with chronic mastoiditis, for whom mastoidectomy was done at department of otolaryngology, Seoul national university hospital from october 1965 to march 1966, bacteriological studies for the floras in the mastoid cavities were performed. Following results were obtained ; 1) Pseudomonas had the highest relative abundance (30%) and the number of staphylococcus was relatively high (27.5%), while no growth was found in 5 cases in the pure culture. 2) In the sensitivity tests for antibiotics, staphylococcus was relatively sensitive to many types of antibiotics and the others, especially pseudomonas and proteus, were almost resistant to many types of antibiotics.

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