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The role of adenoids in pediatric rhinosinusitis
Kwang Soo Shin1, Seok Hyun Cho, Kyung Rae Kim
1Department of Otolaryngology-Head and Neck Surgery, College of Medicine, Hanyang University, Haengdang-dong 17, Sungdong-gu, Seoul 133-792, Republic of Korea.
Insights
In pediatric rhinosinusitis, adenoids frequently harbor pathogenic bacteria, acting as a bacterial reservoir rather than a cause of mechanical blockage. This finding is crucial for understanding childhood sinus infections.
Area of Science:
- Otolaryngology
- Pediatric Infectious Diseases
- Microbiology
Background:
- Adenoids play a role in pediatric upper airway health.
- Their involvement in chronic rhinosinusitis is debated, with theories suggesting mechanical obstruction or bacterial reservoirs.
Purpose of the Study:
- To investigate the role of adenoids in pediatric rhinosinusitis.
- To determine if adenoids act as a mechanical blockage or a reservoir for pathogenic bacteria.
Main Methods:
- Retrospective chart review of 410 children (<14 years) undergoing adenoidectomy.
- Adenoid tissue culture for bacteriology and preoperative PNS X-ray for sinusitis grade and adenoid size.
- Analysis of correlations between adenoid bacteria, sinusitis severity, and adenoid size.
Main Results:
- High bacterial isolation rate (79.3%) from adenoids.
- Common pathogens included Haemophilus influenzae, Streptococcus pneumoniae, Streptococcus pyogenes, and Staphylococcus aureus.
- Bacterial isolation significantly correlated with higher sinusitis grades, particularly for H. influenzae and S. pneumoniae (p<0.01).
- No significant correlation found between adenoid size and sinusitis grade or bacterial isolation.
Conclusions:
- Adenoids are a significant reservoir for pathogenic bacteria in pediatric rhinosinusitis.
- Findings support the role of adenoids as a bacterial source rather than a primary cause of mechanical obstruction in this condition.
Objective:
To evaluate adenoids' importance in pediatric rhinosinusitis as a cause of mechanical blockage or as a reservoir for pathogenic bacteria.
Methods:
A retrospective chart review of prospectively collected data was performed, which included 410 children under the age of 14 who underwent adenoidectomy in the study. Adenoid bacteriology was evaluated with adenoid tissue culture, and sinusitis grade and adenoid size were determined using preoperative PNS X-ray. A potential correlation between these factors was then analyzed.
Results:
The overall adenoid bacteria isolation rate was 79.3%. The most common bacteria were Haemophilus influenza (28.5%), Streptococcus pneumonia (21.7%), Streptococcus pyogenes (21.0%), and Staphylococcus aureus (15.6%), and bacterial isolation rate increased significantly according to sinusitis grade (p=0.000). This was especially true of Haemophilus influenzae and Streptococcus pneumonia, whose isolation rates increased significantly (p=0.011, p=0.001 each). There was no statistically significant difference in sinusitis grade or bacterial isolation rate according to adenoid size.
Conclusions:
Based on these results, adenoids contain many potentially pathogenic bacteria. We suggest that in pediatric rhinosinusitis, adenoids act as a reservoir for pathogenic bacteria rather than as a barrier causing mechanical obstruction.
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