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European Archives of Oto-Rhino-Laryngology

Erschienen in:

29.07.2022 | COVID-19 | Rhinology

Effects of classical olfactory training in patients with COVID-19-related persistent loss of smell

verfasst von: Atılay Yaylacı, Emel Azak, Alperen Önal, Doğukaan Ruhi Aktürk, Aynur Karadenizli

Erschienen in: European Archives of Oto-Rhino-Laryngology | Ausgabe 2/2023

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Abstract

Purpose

The management of post-COVID-19 persistent olfactory dysfunction (OD) is uncertain. Currently, olfactory training is the only evidence-based therapy for post-viral OD. In this study, we evaluated the effectiveness of classical olfactory training (COT) in the treatment of post-COVID-19 persistent OD.

Materials and methods

Patients with persistent OD after COVID-19 were assessed using the Sniffin’ Sticks test. Fifty-one patients were then divided into two groups based on personal preference: the COT group (n = 31) included subjects who performed COT over 12 weeks, and the control group (n = 20) included subjects who did not receive any treatment. After the exclusion of eight patients, the olfactory performances of 43 patients were re-evaluated and compared to the baseline values.

Results

A significantly higher proportion of patients in the COT group improved their olfactory scores above the clinically important difference compared to the control group (40% versus 6%) (p = 0.014). The subjective smell improvement by COT was independent of age, gender, OD duration, presence of parosmia, or the initial olfactory score (all p > 0.05).

Conclusion

Twelve weeks of COT appears to increase the olfactory sensitivity in patients with persistent OD following COVID-19.

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Titel: Effects of classical olfactory training in patients with COVID-19-related persistent loss of smell
verfasst von: Atılay Yaylacı
Emel Azak
Alperen Önal
Doğukaan Ruhi Aktürk
Aynur Karadenizli
Publikationsdatum: 29.07.2022
Verlag: Springer Berlin Heidelberg
Schlagwort: COVID-19
Erschienen in: European Archives of Oto-Rhino-Laryngology / Ausgabe 2/2023
Print ISSN: 0937-4477
Elektronische ISSN: 1434-4726
DOI: https://doi.org/10.1007/s00405-022-07570-w

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Effects of classical olfactory training in patients with COVID-19-related persistent loss of smell

Abstract

Purpose

Materials and methods

Results

Conclusion

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