CHRONIC SUPPURATIVE OTITIS MEDIA

Objectives: To identify the frequency of pseudomonas aeruginosa inpatients of chronic suppurative otitis media and it sensitivity to various antibiotics. Design: A descriptive study. Place& Duration of Study: The study was carried out from Nov 2002 to may 2003 at Department of ENT, Head and Necksurgery, Combined Military Hospital, Rawalpindi. Material & Methods: A total 150 patients with unilateral or bilateralactive Chronic Suppurative Otitis Media from the out patients clinic were included in the study. All patients wereevaluated through detailed history and through clinical examination. Pus samples were collected from the dischargingear(s) and sent to pathological laboratory of the hospital for culture sensitivity. Results: In this study, 82% casesyielded pure cultures, 15% yielded mixed cultures while 3% yielded no growth. The pure cultures yielded pseudomonasaeruginosa in 52.5% of the cases, Staph. Aureus in 15%, Proteus SPP in 6.5%, klebsiella in 2.6%, E. Coli in 2%,anaerobes in 1.3%, Aspergillus in 1.3% and Candida in 0.6% of the cases. In mixed cultures, pseudomonas wasisolated in 7.3% of the cases, Staph. Aureus in 2.6%, proteus in 2%, Klebsiella in 0.6% and E. Coli in 0.6% of thecases. Pseudomonas was sensitive to Gentamicin in 70% of cases, Amikacin 92%, Ciprofloxacin 95%, Ceftazidime84%, Cephoperazone 82%, Cefipime 84%, Aztreonam 83%, imipenem 98%, Levofloxacin 97%, Augmentin 67% andchloramphenicol in 56% of the cases. Conclusion: Pseudomonas aeruginosa was the most commonly isolatedorganism followed by staphylococcus aureus. Pseudomonas aeruginosa is increasingly becoming more resistant tothe common dugs. This necessitates the early diagnosis and prompt treatment of the disease so as to avoid thecomplications of CSOM.