Frequency of gram negative bacterial isolates in chronic suppurative otitis media and their sensitivity pattern.

Abstract

Objective: To determine frequency of gram negative bacterial isolates and their antibiotic sensitivity pattern among patients with chronic suppurative otitis media. Study Design: Descriptive Cross Sectional study. Setting: Department of Pathology Sahara Medical College Narowal. Period: January 2020 to June 2020. Material & Methods: Total 126 bacterial isolates were taken from the patients having unilateral or bilateral ear discharge reporting to OPD or emergency department during study period. After taking detailed history, examination and baseline investigations diagnosis was confirmed. Specimens of ear discharge were taken from all patients and sent to the pathology department of study institution to determine culture and sensitivity pattern of Gram-negative bacterial isolates. Consent was taken from ethical review committee. Data was analyzed on SPSS-24. Chi square test was applied on collected data. Results: Bacterial isolates were taken from 126 cases having age 2-54 years with mean age of 11.45±5.73 years of either gender. Mostly children less than 8 years of age were found with otitis media. Gram positive bacteria were detected in 41.3% and gram negative in 55.6% and candida albicans in 3.2% out of total 126 bacterial cultures. Out of gram negative cultures, pseudomonas aeruginosa was found in 41.4%, proteus mirabilus in 44.3% and E.coli in 14.3% specimens. Conclusion: Gram negative bacteria are common cause of chronic suppurative otitis media in our region, mostly affecting young children. There is variable antibiotic sensitivity pattern depending on cultural, climate changes and previously taken antibiotics.