Abstract
Introduction: Chronic suppurative otitis media is a chronic infection of the middle ear and mastoidcavity which if not treated leads to partial or total loss of hearing and even life-threateningcomplications like meningitis and Intracranial abscess. Hence it is important to treat the persistentear discharge in CSOM according to the antimicrobial sensitivity of the organism isolated. Methods:This is a prospective cross-sectional study done in 135 clinically diagnosed patients of CSOM at GSLmedical college and General Hospital, Rajamundry, Andhra Pradesh from May 2019 to October 2019.Sterile swabs were used to collect pus from discharging ear and were inoculated onto Blood andMacConkey agar for 24-48 hrs, and identification of organisms was done by using standardbiochemical reactions and antibiotic sensitivity testing done by using modified Kirby- Bauer methodas per CLSI guidelines. Results: A total of 156 strains were isolated from 135 patients in thepresent study of which Pseudomonas aeruginosa and Staphylococcus aureus were amongst the mostisolated pathogens in culture. Imipenem showed the most sensitivity against Pseudomonas,subsequently levofloxacin and piperacillin. Linezolid was the most sensitive versus Staphylococcusensued by ciprofloxacin and cloxacillin. Conclusions: In the present study of Chronic suppurativeotitis media patients, Pseudomonas and Staphylococcus were highly prevalent and showed increasedresistance to beta-lactams and commonly used antimicrobial drugs. Antimicrobials like imipenem,piperacillin, and quinolones are effective against most cases of chronic suppurative otitis media
Highlights
Chronic suppurative otitis media is a chronic infection of the middle ear and mastoid cavity which if not treated leads to partial or total loss of hearing and even life-threatening complications like meningitis and Intracranial abscess
Chronic suppurative otitis media is a disorder of the ear that persists for a long time can lead to hearing loss, developmental disabilities which eventually leads to limit day-to-day activities and standard of living
Continous ear discharge in an active Chronic suppurative otitis media needs to be treated diligently according to the antibiotic susceptibility pattern of causative organisms
Summary
Chronic suppurative otitis media is a chronic infection of the middle ear and mastoid cavity which if not treated leads to partial or total loss of hearing and even life-threatening complications like meningitis and Intracranial abscess. It is important to treat the persistent ear discharge in CSOM according to the antimicrobial sensitivity of the organism isolated. Conclusions: In the present study of Chronic suppurative otitis media patients, Pseudomonas and Staphylococcus were highly prevalent and showed increased resistance to beta-lactams and commonly used antimicrobial drugs. The children are more prone to frequent upper respiratory tract infections that ascend to the middle ear and may subsequently progress to Chronic suppurative otitis media (CSOM) [1]. Acute suppurative otitis media is an acute inflammation of the middle ear by pyogenic organisms that is more common especially in infants and children of low socioeconomic groups [3]. Infection of middle ear mucosa subsequently results in ear discharge [4]
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