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Adherent biofilms in adenotonsillar diseases in children
Khalid A Al-Mazrou1, Abdulaziz S Al-Khattaf
1Department of Otolaryngology-Head and Neck Surgery, King Abdul Aziz University Hospital, PO Box 86118, Riyadh 11622, Saudi Arabia. kalmazrou@gmail.com
Insights
Biofilms were found on tonsils and adenoids in most children undergoing surgery. Their presence was significantly higher in infected tissues, suggesting a link between biofilms and chronic inflammation.
Area of Science:
- Microbiology
- Otolaryngology
- Pediatric Medicine
Background:
- Biofilms are microbial communities that can cause persistent infections.
- Tonsils and adenoids are common sites for recurrent infections and inflammation in children.
- Understanding biofilm presence in these tissues is crucial for effective treatment.
Purpose of the Study:
- To investigate the occurrence of biofilms on the epithelial surfaces of tonsils and adenoids in pediatric patients.
- To determine if biofilm presence correlates with infection or obstruction in these tissues.
Main Methods:
- Prospective study conducted at a tertiary academic hospital.
- Inclusion of 76 children undergoing adenotonsillectomy (T&A) for infection or obstruction.
- Assessment of biofilm presence using scanning electron microscopy.
Main Results:
- Biofilms were detected in 61% of the patients studied.
- A significantly higher prevalence of biofilms was observed in patients with tonsil and adenoid infections (85%) compared to those with obstruction only (41%).
- The association between biofilms and infection was statistically significant (P = .01).
Conclusions:
- Biofilms are frequently present on infected or enlarged tonsils and adenoids in children.
- The findings indicate a strong association between biofilm formation and chronic inflammation in these tissues.
- This suggests biofilms may play a role in the pathogenesis of chronic tonsillitis and adenoiditis.
Objective:
To study biofilm formation on the epithelial surfaces of tonsils and adenoids in children undergoing adenotonsillectomy (T&A).
Design:
Prospective study.
Setting:
Tertiary academic hospital.
Patients:
Between September 2005 and August 2006, 76 patients (mean [SD] age, 5.7 [3.3] years; age range, 1-18 years; male-female ratio, 1.8:1) undergoing T&A to treat infection, obstruction, or both were included. Of these, 44 had obstruction (58%), 26 had infection (34%), and 6 had both (8%).
Interventions:
Scanning electron microscopy was used to assess for the presence of biofilms.
Main Outcome Measure:
Presence of adherent biofilms on the surface epithelium of tonsils and adenoids.
Results:
Adherent biofilm formation was demonstrated in 46 patients (61%). Among 26 patients with infections, adherent biofilm formation was detected in 22 (85%), whereas in the group of 44 patients with obstruction only 18 were found to have biofilms (41%). Comparative analysis of the data revealed that the difference was statistically significant (P = .01).
Conclusions:
Biofilms were identified on the surfaces of infected or enlarged tonsils and adenoids in most patients undergoing T&A. The presence of biofilms in a significantly higher proportion of patients with chronically inflamed tonsils and adenoids vs patients with obstruction indicates an association between the presence of biofilms and chronic inflammation.
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