Chronic Suppurative Otitis Media: Bacteriology and Drug Sensitivity Patterns at the Quirino Memorial Medical Center (2004-2005): A Preliminary Study

Authors

  • Patricia N. Ayson Department of Otolaryngology Head and Neck Surgery Quirino Memorial Medical Center
  • Jan Eero G. Lopez Department of Otolaryngology Head and Neck Surgery Quirino Memorial Medical Center; Departments of Otolaryngology Head and Neck Surgery St Luke’s Medical Center and The Medical City
  • Erasmo Gonzalo DV. Llanes Department of Otolaryngology Head and Neck Surgery Quirino Memorial Medical Center; Department of Otorhinolaryngology College of Medicine – Philippine General Hospital University of the Philippines Manila

DOI:

https://doi.org/10.32412/pjohns.v21i1-2.823

Keywords:

chronic otitis media, perforated tympanic membrane, chronic aural discharge

Abstract

Objectives: To identify the bacterial pathogens associated with chronic suppurative otitis media and their antimicrobial sensitivity and resistance

 

Study Design: Cross-sectional survey

 

Setting: The study was carried out from July 2004-July 2005 at the outpatient clinic of a government tertiary hospital.

 

Number of subjects: A total of 32 patients (54 ears) with unilateral or bilateral active chronic suppurative otitis media.

 

Results: Bacterial pathogens of 54 ear discharge samples from CSOM were studied. Among them, 42 (78%) were pure cultures and 9 (16.7%) were mixed, only 3 (5.6%) of the submitted samples had no growth. There were 42 pure isolates, the most common of which was Staphylococcus aureus 21 (50%), followed by Pseudomonas aeruginosa 14 (33.3%). Drug sensitivity pattern of Staphylococcus aureus showed that 61.9% were resistant to Penicillin while more than 90% were sensitive to Aminoglycosides and Clindamycin. Pseudomonas aeruginosa was resistant to penicillin in 64.3% of cases and Ciprofloxacin was active against pseudomonas in 85.7%.

 

Conclusion: The most common bacterial pathogens from CSOM include Staphylococcus aureus and Pseudomonas aeruginosa. Majority of the isolates of Staphylococcus aureus were resistant to penicillin. Aminoglycosides, macrolides and quinolones were effective against most of the isolates of Staphylococcus aureus.

 

Keywords: chronic otitis media, perforated tympanic membrane, chronic aural discharge

 

 

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Published

2006-11-29

How to Cite

1.
Ayson PN, Lopez JEG, Llanes EGD. Chronic Suppurative Otitis Media: Bacteriology and Drug Sensitivity Patterns at the Quirino Memorial Medical Center (2004-2005): A Preliminary Study. Philipp J Otolaryngol Head Neck Surg [Internet]. 2006 Nov. 29 [cited 2024 May 20];21(1-2):20-3. Available from: https://pjohns.pso-hns.org/index.php/pjohns/article/view/823

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