[Microorganisms isolated from middle ear cultures and their antibacterial susceptibility in patients with chronic
H Cem Gül1, Ali Kurnaz, Vedat Turhan
1Department of Infectious Diseases, Gümüşsuyu Military Hospital, Istanbul, Turkey. hcgul@yahoo.com
Objectives:
This study sought to determine causative microorganisms of chronic suppurative otitis media and their antibacterial susceptibility.
Patients And Methods:
Bacteriologic results of middle ear swabs, agent microorganisms, and their susceptibility to antibiotics were evaluated in 70 patients (65 males, 5 females; mean age 21.1+/-1.3 years; range 19 to 25 years) with chronic suppurative otitis media.
Results:
No bacteria were isolated in 14% of the patients. Of 60 patients in whom bacteria were isolated, the most common bacteria was Pseudomonas aeruginosa (23%), followed by Staphylococcus aureus (18%), and Proteus spp. (17%). P. aeruginosa strains were susceptible to ceftazidime and imipenem (100%), ciprofloxacin (92%), and amikacin and gentamycin (85%); S. aureus strains were susceptible to methicillin and vancomycin (100%), ciprofloxacin (91%), sulbactam-ampicillin (73%), and gentamycin and trimethoprim-sulfamethoxazole (63%). Proteus strains were susceptible to ciprofloxacin (100%), ceftazidime (90%), and imipenem and gentamycin (70%).
Conclusion:
Appropriate knowledge of antibacterial susceptibility of microorganisms will contribute to rational antibiotic usage and the success of treatment for chronic suppurative otitis media.
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