Impact of adenotonsillectomy on the evolution of inflammatory markers
Martín E Marcano-Acuña1, Marina Carrasco-Llatas1, Miguel Tortajada-Girbés2,3
1Department of Ear Nose & Throat (ENT), Foundation for the Promotion of Health and Biomedical Research in the Valencian Region (FISABIO), Dr. Peset University Hospital, Valencia, Spain.
Insights
Adenotonsillectomy in children with chronic tonsillitis or hypertrophy significantly reduces inflammatory markers like hs-CRP and TNF-α. One year post-surgery, these inflammatory markers return to normal levels, indicating the procedure
Area of Science:
- Immunology
- Pediatric Otolaryngology
Background:
- Tonsils are crucial for host defense and immunity.
- Persistent inflammation linked to tonsil issues can increase morbidity.
- Elevated inflammatory markers are observed in children requiring adenotonsillectomy.
Purpose of the Study:
- To assess the short- and long-term effects of adenotonsillectomy on inflammatory markers in children aged 3-9.
- To evaluate changes in cytokines and other inflammatory indicators post-tonsillectomy.
Main Methods:
- Prospective, longitudinal study of 29 children undergoing adenotonsillectomy.
- Measured high-sensitivity C-reactive protein (hs-CRP), Th1/Th2 cytokines, TGF-β, and ICAM-1.
- Compared results with 29 control children over one year.
Main Results:
- Baseline elevated hs-CRP, IL-1, IL-10, IFN-γ, TNF-α, and ICAM-1 in surgical candidates.
- Children with severe obstruction showed different cytokine profiles (IL-1, IL-4, IL-5, IL-10).
- One year post-surgery, inflammatory markers normalized compared to controls; hs-CRP and TNF-α decreased within one month.
Conclusions:
- Children with chronic tonsillitis/hypertrophy exhibit elevated proinflammatory cytokines.
- Adenotonsillectomy effectively normalizes these inflammatory parameters within one year.
Background:
Tonsils are first-line host defence organs against pathogenic agents and participate in local and systemic immunity. Persistent increases in systemic inflammatory responses may contribute to associated morbidity. The aim of this study was to verify the short- and long-term impact of adenotonsillectomy on the evolution of inflammatory markers in 3- to 9-year-old children.
Methods:
A prospective and longitudinal study was conducted over 1 year in 29 children who underwent tonsillectomy due to either chronic tonsillitis or adenotonsillar hypertrophy. Measurements of high-sensitivity C-reactive protein (hs-CRP) levels were taken. Levels of Th1-type cytokines [interleukin-1, interferon-γ, and tumor necrosis factor-α (TNF-α)] and anti-inflammatory Th2-type cytokines [interleukin-4, -5, -6, -10 and -13] were measured. Levels of transforming growth factor-beta (TGF-β) and intercellular adhesion molecule-1 (ICAM-1) were also determined. The results were compared to those of 29 control children.
Results:
At baseline, children with surgery indications presented with higher levels of hs-CRP, interleukin-1 and -10, interferon-γ, TNF-α and ICAM-1, whereas values of interleukin-4 were significantly lower than in control children. Children with severe tonsillar obstruction had higher values of interleukin-1, -4, and -5 and lower values of interleukin-10 compared with children with recurrent tonsillitis. One year after surgery, the levels except IL-4 did not show a significant difference from those obtained in the control group. The levels of hs-CRP and TNF-α decreased significantly in the first month.
Conclusion:
Children with chronic tonsillitis and/or adenotonsillar hypertrophy have significantly elevated levels of proinflammatory cytokines. Adenotonsillectomy restores the normal values of these parameters 1 year after surgery.
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