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Association Between Olfactory Function and Asthma in Adults.

Hyo-In Rhyou¹, Woo Yong Bae², Young-Hee Nam¹

¹Department of Internal Medicine, College of Medicine, Dong-A University, Busan, Korea.

Journal of Asthma and Allergy

|April 9, 2021

Summary

This summary is machine-generated.

Olfactory dysfunction is common in adults with asthma, affecting nearly half of patients. Older age, poor general health, chronic rhinosinusitis, and nasal polyps are linked to this smell impairment.

Keywords:

asthma chronic rhinosinusitis olfactory dysfunction

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Area of Science:

Otorhinolaryngology
Pulmonology
Allergy and Immunology

Background:

Asthma is frequently associated with upper airway diseases like chronic rhinosinusitis (CRS) and allergic rhinitis (AR).
Olfactory dysfunction is a recognized symptom in these patients, impacting quality of life and health outcomes.
Research on the link between asthma and olfactory function remains limited.

Purpose of the Study:

To investigate the relationship between asthma and olfactory function in adult patients.
To identify factors associated with olfactory dysfunction in individuals with asthma.

Main Methods:

Retrospective analysis of 146 adult asthma patients (August 2019 - February 2020).
Olfactory function assessed using the Sniffin' stick test or YSK olfactory function test.
Comparison of clinical parameters between patients with and without olfactory dysfunction.

Main Results:

46.6% of asthma patients exhibited olfactory dysfunction (31 hyposmia, 37 anosmia).
Olfactory dysfunction was associated with older age, longer asthma duration, poor general health, CRS, and nasal polyps.
No significant differences were found in socioeconomic status, lung function, asthma severity, or steroid use.

Conclusions:

Olfactory dysfunction is prevalent in adults with asthma.
Age, poor general health, CRS, and nasal polyps are significant risk factors for olfactory dysfunction in asthma patients.