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Published on: June 14, 2020
The microbiology of tonsils in khamis civil hospital, saudi arabia
Mohammed S Al Ahmary1, Ali S Al Mastour, Wagih M Ghnnam
1ENT and Neck Surgery Department, Khamis Mushayte General Hospital, Saudi Arabia.
Insights
This study identified Staphylococcus aureus and Group B Streptococcus as the primary bacterial causes of tonsillitis requiring surgery in Khamis Civil Hospital. Effective antibiotic treatment should target these common Gram-positive cocci.
Area of Science:
- Microbiology
- Infectious Diseases
- Otolaryngology
Background:
- Tonsillitis is a prevalent infection across all age groups, particularly in children under five.
- The specific microorganisms responsible for tonsillitis exhibit geographical variation.
- Identifying local causative agents is crucial for effective treatment strategies.
Purpose of the Study:
- To determine the predominant microbial pathogens causing tonsillitis in patients undergoing tonsillectomy at Khamis Civil Hospital.
- To guide empirical antibiotic therapy based on local etiological data.
Main Methods:
- A prospective study involving 52 patients undergoing tonsillectomy at Khamis Civil Hospital, Kingdom of Saudi Arabia.
- Bacterial cultures (aerobic and anaerobic) were performed on swabs from the tonsillar surfaces.
- Standard microbiological techniques were employed for organism identification.
Main Results:
- Positive bacterial cultures were obtained from approximately 65% of the patients.
- The most frequently isolated bacteria were Staphylococcus aureus (44.1%) and Group B Streptococcus (35.3%).
- Gram-negative bacteria, including Klebsiella pneumoniae (8.82%) and Pseudomonas aeruginosa (2.94%), were less common. No anaerobes were detected.
Conclusions:
- Gram-positive cocci, specifically Staphylococcus aureus and Group B Streptococcus (Streptococcus agalactiae), are the principal etiological agents of surgically treated tonsillitis in this region.
- Current antibiotic regimens for tonsillitis should prioritize coverage against these identified Gram-positive pathogens.
Abstract:
Objectives. Tonsillitis is a common infection in all age groups, especially under the age of five. Organisms causing this condition vary from place to place. Our aim is to find out the main causative agents of this condition in our hospital. Patients and Methods. Fifty-two consenting patients who needed tonsillectomy in Khamis civil hospital, Kingdom of Saudi Arabia, between September 2006 and April 2007, were enrolled for the study. Swabs were taken from their inner surfaces and cultured for anaerobes and aerobes according to standard microbiological techniques. Results. Fifty-two patients, consisting of 30 males and 22 females were enrolled. Their mean age was 9.81 ± 6.47. Nearly 65% of patients had positive cultures while 35% were negative. The commonest bacteria isolated were Staphylococcus aureus (44.1%); and Group B Streptococcus (35.3 %). Two Gram-negative bacteria, Klebsiella pneumoniae, (8.82%), and Pseudomonas aeruginosa (2.94 %), were also isolated. No anaerobe was isolated. Conclusion. Gram-positive cocci, consisting of Staphylococcus aureus and Group B Streptococcus (Streptococcus agalactiae), are the major causes of tonsillitis requiring surgery in our hospital. Antibiotic treatment of this condition should be directed largely against these organisms.
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