Bacterial Etiology of Otitis Media and their Antibiotic Susceptibility Pattern among Patients coming to a Tertiary Care Hospital, Jaipur, India

Abstract

ABSTRACT Aim The aim of the study was to identify the microorganisms associated with the chronic discharging ears and their antimicrobial susceptibility pattern. Materials and methods A total of 251 samples of ear swabs were received at Mahatma Gandhi Medical College & Hospital, Jaipur, Rajasthan, India. Pus samples were taken from external auditory canal using sterile cotton swabs and then cultured on different microbiological media. Antibiotic sensitivity was tested and interpreted by method according to Clinical and Laboratory Standards Institute standards. Results Out of 251 samples received, 135 (53.78%) samples had growth. The microbiology of these 135 samples was studied. Pseudomonas aeruginosa was the major organism isolated from 88 samples followed by Staphylococcus aureus (37), and other coliforms (10). Drug susceptibility of P. aeruginosa showed that colistin was active against all isolates followed by piperacillin-tazobactam and imipenem. Approximately 60% S. aureus isolates were methicillin-resistant S. aureus. Vancomycin, linezolid, and teicoplanin were 100% sensitive. Conclusion From the current study, it was concluded that P. aeruginosa is the potential cause of ear-associated infections. All isolates of P. aeruginosa were susceptible to colistin, and S. aureus was susceptible to vancomycin, linezolid, and teicoplanin. How to cite this article Agrawal M, Gupta N, Pandey G. Bacterial Etiology of Otitis Media and their Antibiotic Susceptibi­lity Pattern among Patients coming to a Tertiary Care Hospital, Jaipur, India. J Mahatma Gandhi Univ Med Sci Tech 2017;2(1):7-9.