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Gustatory Function in Patients With Chronic Rhinosinusitis.

Axel Wolf1, Bertold Renner2, Peter V Tomazic1

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Summary

Patients with chronic rhinosinusitis (CRS) show impaired taste function, particularly for bitter flavors. This reduced gustatory function may indicate increased risk for respiratory infections.

Keywords:
bitterchemosensorygustationstripssupertastersweet

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Area of Science:

  • Otorhinolaryngology
  • Sensory Science
  • Immunology

Background:

  • Airway epithelial cells possess taste receptors crucial for defending against respiratory infections.
  • Chronic rhinosinusitis (CRS) is a prevalent condition affecting the upper airways.
  • Understanding sensory function in CRS is vital for managing associated risks.

Purpose of the Study:

  • To investigate gustatory function in individuals diagnosed with chronic rhinosinusitis (CRS).
  • To compare taste perception between CRS patients and healthy individuals.
  • To explore potential correlations between impaired taste and CRS.

Main Methods:

  • Utilized the extended "taste strip" test to assess taste function.
  • Recruited 37 patients with CRS (mean age 32.1 years) and 135 healthy controls (mean age 29.5 years).
  • Analyzed taste scores across different taste modalities and demographic groups.

Main Results:

  • CRS patients demonstrated significantly lower overall taste scores compared to controls.
  • A notable deficit in bitter taste perception was observed in male CRS patients (P < .01).
  • A trend towards reduced sweet taste perception was noted in CRS patients, though not statistically significant (P = .051).

Conclusions:

  • Individuals with chronic rhinosinusitis exhibit diminished gustatory function.
  • The impairment is most pronounced for the perception of bitter tastes.
  • Assessing taste function may serve as a valuable tool for identifying individuals at higher risk for recurrent upper respiratory tract infections.