Back to Search
Start Over
Correlations between IL-6 serum level and olfactory dysfunction severity in COVID-19 patients: a preliminary study.
- Source :
-
European archives of oto-rhino-laryngology : official journal of the European Federation of Oto-Rhino-Laryngological Societies (EUFOS) : affiliated with the German Society for Oto-Rhino-Laryngology - Head and Neck Surgery [Eur Arch Otorhinolaryngol] 2022 Feb; Vol. 279 (2), pp. 811-816. Date of Electronic Publication: 2021 May 13. - Publication Year :
- 2022
-
Abstract
- Background: Interleukin 6 (IL-6) is a proinflammatory cytokine that is secreted by cells infected with severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2) and it is widely recognized as a negative prognostic factor. The purpose of this study was to analyze the correlations between the olfactory scores determined by psychophysical tests and the serum levels of IL-6 in patients affected by coronavirus disease 2019 (COVID-19) METHODS: Patients underwent psychophysical olfactory assessment with Connecticut Chemosensory Clinical Research Center test and IL-6 plasma level determination within 10 days of the clinical onset of COVID-19.<br />Results: Seventy-four COVID-19 patients were included in this study. COVID-19 staged as mild in 34 patients, moderate in 26 and severe in 14 cases. There were no significant differences in olfactory scores across the different COVID-19 severity groups. In the patient series, the median plasma level of IL-6 was 7.7 pg/mL (IQR 3.7-18.8). The concentration of IL-6 was found to be significantly correlated with the severity of COVID-19 with a directly proportional relationship. The correlation between IL-6 plasma concentrations and olfactory scores was weak (r <subscript>s</subscript> ā=ā0.182) and not significant (pā=ā0.12).<br />Conclusions: In COVID-19 patients, psychophysical olfactory scores did not show significant correlations with the plasma levels of a well-recognized negative prognostic factor such as IL-6. This observation casts some shadows on the positive prognostic value of olfactory dysfunctions.<br /> (© 2021. The Author(s).)
Details
- Language :
- English
- ISSN :
- 1434-4726
- Volume :
- 279
- Issue :
- 2
- Database :
- MEDLINE
- Journal :
- European archives of oto-rhino-laryngology : official journal of the European Federation of Oto-Rhino-Laryngological Societies (EUFOS) : affiliated with the German Society for Oto-Rhino-Laryngology - Head and Neck Surgery
- Publication Type :
- Academic Journal
- Accession number :
- 33983525
- Full Text :
- https://doi.org/10.1007/s00405-021-06868-5