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Paranasal sinuses and middle ear infections: what do they have in common?
P Marchisio1, E Ghisalberti, M Fusi
1Institute of Paediatrics, University of Milan, Fondazione IRCCS Ospedale Maggiore Policlinico, Mangiagalli e Regina Elena, Milan, Italy. paola.marchisio@unimi.it
Insights
Pediatric otitis media and sinusitis share common risk factors and pathogens. Bacterial biofilms may explain treatment resistance and relapse in chronic sinusitis, similar to otitis media.
Area of Science:
- Pediatric infectious diseases
- Otolaryngology
- Microbiology
Background:
- Otitis media and sinusitis are prevalent pediatric conditions with overlapping pathophysiology.
- Understanding middle ear disorders aids in comprehending sinus diseases.
- Shared risk factors and nasopharyngeal pathogens link these common infections.
Purpose of the Study:
- To explore the commonalities between otitis media and sinusitis in children.
- To identify shared etiological factors and pathogens.
- To investigate the potential role of bacterial biofilms in chronic sinusitis.
Main Methods:
- Comparative analysis of pediatric otitis media and sinusitis.
- Review of epidemiological and microbiological data.
- Discussion of pathophysiology and treatment implications.
Main Results:
- Acute sinusitis and otitis media share common bacterial pathogens, including Streptococcus pneumoniae, Haemophilus influenzae, and Moraxella catarrhalis.
- Anaerobic bacteria may be more prevalent in chronic sinusitis.
- Bacterial biofilms are implicated in chronic sinusitis, mirroring findings in otitis media.
Conclusions:
- Knowledge of otitis media pathophysiology informs understanding of sinusitis.
- Bacterial biofilms present a challenge in treating chronic sinusitis, potentially explaining antibiotic resistance and relapse.
- Shared causative agents and risk factors highlight the interconnectedness of these pediatric respiratory tract infections.
Abstract:
Otitis media and sinusitis are among the most common pediatric diseases and they share common features. Although the anatomy, physiology and disease processes are not identical, knowledge of the pathophysiology of middle ear disorders often provides to the pediatrician a useful understanding of sinus diseases. The same risk factors identified for otitis media may play a pivotal role in the development of sinusitis. Moreover, as both paranasal sinuses and middle ear acquire respiratory pathogens from nasopharynx, acute sinusitis is usually caused by the same bacterial pathogens that cause acute otitis media, with a major role for Streptococcus pneumoniae, Haemophilus influenzae and Moraxella catarrhalis, while anaerobes may predominate in chronic disease. A responsibility of bacterial biofilms in chronic sinusitis, similarly to otitis media, has been recently suggested. Biofilms, three-dimensional aggregates of bacteria, are refractory to antibiotics and thus might explain why some patients improve while on antibiotics but relapse after completion of therapy.
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