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Chronic rhinosinusitis in Asia.

Yuan Zhang1, Elien Gevaert2, Hongfei Lou1

  • 1Department of Otolaryngology Head and Neck Surgery, Beijing TongRen Hospital, Beijing, China; Beijing Key Laboratory of Nasal Diseases, Beijing Institute of Otolaryngology, Beijing, China.

The Journal of Allergy and Clinical Immunology
|October 9, 2017
PubMed
Summary

Inflammatory patterns in chronic rhinosinusitis (CRS) differ globally. Research shows an "eosinophilic shift" in CRS patients in Asia, impacting treatment strategies and requiring further investigation.

Keywords:
Chronic rhinosinusitisasthma comorbidityendotypeeosinophilic extracellular trapsnasal polypsphenotypetype 2 inflammation

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Area of Science:

  • Immunology
  • Otolaryngology
  • Epidemiology

Background:

  • Chronic rhinosinusitis (CRS) presents a significant global health burden, often proving challenging to treat.
  • Distinct inflammatory signatures characterize CRS worldwide, with notable differences between Asian and Western populations.

Purpose of the Study:

  • To investigate the varying inflammatory profiles of chronic rhinosinusitis (CRS) globally.
  • To examine the prevalence and implications of the
  • eosinophilic shift
  • in Asian patients with CRS.

Main Methods:

  • Comparative analysis of inflammatory signatures in CRS patients across different continents.
  • Review of existing research on CRS epidemiology and treatment outcomes in Asia versus Western countries.

Main Results:

  • Asian CRS patients exhibit a more neutrophilic inflammatory profile compared to European and North American counterparts.
  • The prevalence of type 2 inflammation in nasal polyps is lower in parts of Asia (20-60%) versus the West (~80%).
  • A significant "eosinophilic shift" towards type 2 inflammation is observed in several Asian countries over the past two decades.

Conclusions:

  • Understanding regional inflammatory differences in CRS is crucial for effective treatment selection, including pharmacotherapy, surgery, and biotherapy.
  • The observed "eosinophilic shift" in Asia necessitates further research into its causes and pathophysiological mechanisms to optimize patient care.