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Adenoid mast cells and their role in the pathogenesis of otitis media with effusion
B Abdullah1, S Hassan, D Sidek
1Department of Otorhinolaryngology-Head and Neck Surgery, School of Medical Sciences, Universiti Sains Malaysia, Kubang Kerian, Kelantan, Malaysia. baharudin@kb.usm.my
Introduction:
Otitis media with effusion (OME) is an inflammation of the middle ear in which a collection of liquid is present in the middle-ear space while the tympanic membrane is intact. The association between adenoid inflammation and OME has long been noted but the exact mechanism is still much debated. We studied the role of adenoid mast cells in the causation of OME.
Objective:
To study the distribution and role of adenoid mast cells in the causation of OME.
Methodology:
A cross-sectional, prospective study was carried out in the otorhinolaryngologic clinic, department of otorhinolaryngology (ORL), Science University of Malaysia, from June 1999 to September 2001. A total number of 50 cases were studied. Twenty-five of these patients underwent adenoidectomy, while another 25 patients underwent adenoidectomy and myringotomy with ventilation tube insertion. The adenoid specimens from all patients were examined for the number of adenoid mast cells present, using light microscopy and toluidine blue as the staining agent. The results were analysed using SPSS version 10.0 computer software.
Result:
The population of adenoid mast cells in children with OME was significantly greater than that in children without OME (p=0.000).
Conclusion:
The increased number of adenoid mast cells in patients with OME suggests that inflammation may play a role in this condition.
Insights
Children with otitis media with effusion (OME) have significantly more adenoid mast cells. This suggests that inflammation involving adenoid mast cells may contribute to the development of OME.
Area of Science:
- Otorhinolaryngology
- Immunology
- Pediatrics
Background:
- Otitis media with effusion (OME) is characterized by middle ear fluid accumulation with an intact tympanic membrane.
- The link between adenoid inflammation and OME is recognized, but the precise mechanism remains unclear.
- Adenoid mast cells are investigated for their potential role in OME pathogenesis.
Purpose of the Study:
- To investigate the distribution and function of adenoid mast cells in the causation of OME.
- To determine if adenoid mast cell populations differ between children with and without OME.
Main Methods:
- A prospective study involving 50 children was conducted from June 1999 to September 2001.
- Adenoid specimens were analyzed for mast cell counts using light microscopy and toluidine blue staining.
- Patients underwent either adenoidectomy or adenoidectomy with myringotomy and ventilation tube insertion.
Main Results:
- A statistically significant increase in adenoid mast cell populations was observed in children with OME compared to those without OME (p=0.000).
Conclusions:
- Elevated adenoid mast cell numbers in OME patients indicate a potential role for inflammation in this condition.
- Further research into the inflammatory pathways involving adenoid mast cells is warranted for OME management.
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