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<p>Chronic otitis media is a persistent infection and inflammation of the mucoperiosteum and mucosa of the middle ear cleft, which results in permanent abnormality of the tympanic membrane involving pars tensa or pars flaccida. Progression of the chronic otitis media causes devastating complications like facial nerve palsy, labyrinthitis, meningitis, cerebral and cerebellar abscess. To know the locoregional bacterial profile in the chronic otitis media cases and the antibiotic management. Methodology: A prospective observational study to determine the bacterial profile in chronic otitis media cases. Ear swab samples were collected under aseptic, sterile precautions using sterile cotton-tipped applicators from 212 patients. Each sample was inoculated onto blood agar, MacConkey agar, and chocolate agar media and incubated aerobically at 37&#xa0;°C for 24 to 48&#xa0;h. Organism identification was conducted using standard microbiological techniques, including colony morphology, Gram staining, and biochemical reactions. The majority of cases (74.53%) exhibited monomicrobial growth, indicating that a single pathogen was isolated from the ear discharge samples. Polymicrobial growth, where more than one microorganism was identified, was observed in 6.60% of cases. Meanwhile, 18.87% of the samples were sterile, showing no growth on culture. Conclusion: The results reinforce the importance of routine culture and sensitivity testing, the development of dynamic local antibiograms, and the urgent need for robust antimicrobial stewardship programs to preserve the efficacy of remaining treatment options. Early intervention and appropriate Antibiotic management reduce the morbidity rates.</p>

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Bacteriological Profile and Antimicrobial Resistance in Chronic Otitis Media: An Observational Study

  • 期刊论文

  • 发表日期：

    2025年9月10日

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  • M. D. Prakash,
  • B. O. Rashmi

摘要

Chronic otitis media is a persistent infection and inflammation of the mucoperiosteum and mucosa of the middle ear cleft, which results in permanent abnormality of the tympanic membrane involving pars tensa or pars flaccida. Progression of the chronic otitis media causes devastating complications like facial nerve palsy, labyrinthitis, meningitis, cerebral and cerebellar abscess. To know the locoregional bacterial profile in the chronic otitis media cases and the antibiotic management. Methodology: A prospective observational study to determine the bacterial profile in chronic otitis media cases. Ear swab samples were collected under aseptic, sterile precautions using sterile cotton-tipped applicators from 212 patients. Each sample was inoculated onto blood agar, MacConkey agar, and chocolate agar media and incubated aerobically at 37 °C for 24 to 48 h. Organism identification was conducted using standard microbiological techniques, including colony morphology, Gram staining, and biochemical reactions. The majority of cases (74.53%) exhibited monomicrobial growth, indicating that a single pathogen was isolated from the ear discharge samples. Polymicrobial growth, where more than one microorganism was identified, was observed in 6.60% of cases. Meanwhile, 18.87% of the samples were sterile, showing no growth on culture. Conclusion: The results reinforce the importance of routine culture and sensitivity testing, the development of dynamic local antibiograms, and the urgent need for robust antimicrobial stewardship programs to preserve the efficacy of remaining treatment options. Early intervention and appropriate Antibiotic management reduce the morbidity rates.