Bacteriological Profile of Chronic Suppurative Otitis Media

A B S T R A C T Chronic suppurative otitis media (CSOM) is a persistent, insidious and potentially dangerous disease because of its various fatal complications. Change in the bacteriological profile with indiscriminate use of antimicrobial agents has been associated with the emergence of multiple drug resistant strains. 100 clinically diagnosed cases of CSOM of all age groups and both the sexes were studied. Two swabs taken from each patient, for Gram staining and for culture onto Blood agar and MacConkey s agar. The bacterial isolates were identified by standard biochemical reactions. Antibiotic susceptibility testing was done by Kirby-Bauer disc diffusion method. 100 CSOM cases were studied, 67 were males and 33 were females. Bacterial isolates showed predominance of Staphylococcus aureus 32 (32.65%) followed by Pseudomonas spp. 26 (26.53%) & Klebsiella spp. 16 (16.32%). Antibiotics like Ciprofloxacin, Gentamicin, Amikacin and Cefotaxime were found to be more effective against all Gram positive and Gram negative isolates. Staphylococcus aureus was the predominant organism followed by Pseudomonas spp. The most effective drugs were Ciprofloxacin, Gentamicin. K e y w o r d s Chronic suppurative otitis media, Gram stain, Blood agar, Staphylococcus aureus, Ciprofloxacin