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Chronic suppurative otitis media: optimizing initial antibiotic therapy in a tertiary care setup.
Shashidhar Vishwanath1, Chiranjay Mukhopadhyay, Rajat Prakash
1Department of Microbiology, Kasturba Medical College, Manipal University, Manipal, 576104 Karnataka India.
Summary
This study identified the common microbes causing chronic suppurative otitis media (CSOM) and their antibiotic resistance. Pseudomonas aeruginosa and Staphylococcus aureus were most frequent, with tobramycin and gentamicin showing high effectiveness against CSOM pathogens.
Area of Science:
- Otolaryngology
- Microbiology
- Infectious Diseases
Background:
- Chronic suppurative otitis media (CSOM) is a persistent middle ear infection characterized by tympanic perforation and discharge.
- Understanding the clinico-microbiological profile and antibiotic susceptibility is crucial for effective management of CSOM.
Purpose of the Study:
- To determine the clinico-microbiological profile of patients with chronic suppurative otitis media.
- To assess the antibiogram of microbial isolates from CSOM patients.
- To guide effective antibiotic policies for CSOM treatment.
Main Methods:
- Prospective study of 94 patients with CSOM.
- Middle ear swabs were cultured for bacterial and fungal identification.
- Antimicrobial susceptibility testing was performed using the disc diffusion method.
Main Results:
- The most common age group affected was 21-30 years, with a male to female ratio of 2:1.4.
- Pseudomonas aeruginosa (32.2%) and Staphylococcus aureus (17.4%) were the predominant aerobic isolates.
- Tobramycin (83.8%) and gentamicin (78.1%) demonstrated high efficacy against common CSOM isolates.
Conclusions:
- The study highlights the prevalent microbial agents in CSOM and their resistance patterns.
- Regular monitoring of microbiological profiles and sensitivity is essential for effective CSOM treatment strategies.
- Topical antibiotics like tobramycin and gentamicin are effective against common CSOM pathogens.
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