Abstract
A Bacteriological study was carried out on middle ear discharge in 140 cases of chronic supprative otitis media.
One hundred and seventy-two strains (81.4%) of pathogenic bacteria were isolated from 140 cases with chronic supprative otitis media.
The most frequent organism found solitary was Staphylococcus aureus (27.9% of 172 strains) and the second was Staphylococcus epidermidis (14.5%) followed by Pseudomonas aeruginosa (9.9%), Pseudomnas maltophilia (7.6%), Candida tropicalis (5.8%), and Corynebacterium (4.7%). Anaerobic bacteria were isolated from 2.9% out of 172 strains.
The frequency with mixed infection was 42 cases (33.3%) out of 126 cases.
Especially, Staphylococcus aureus, Pseudomonas aeruginosa and Pseudomonas maltophilia were considered to be important pathogenic bacteria of chronic supprative otitis media.
