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The role of self-reported smell and taste disorders in suspected COVID‑19.
Eur Arch Otorhinolaryngol. 2020 Sep; 277(9):2625-2630.EA

Abstract

PURPOSE

The sudden onset of smell and taste loss has been reported as a symptom related to COVID-19. There is urgent need to provide insight to the pandemic and evaluate anosmia as a potential screening symptom that might contribute to the decision to test suspected cases or guide quarantine instructions.

METHODS

Systematic review of the PubMed/Medline, Cochrane databases and preprints up to May 3, 2020. Combined search terms included: "COVID-19", "SARS-CoV-2", "coronavirus", "nose", "anosmia", "hyposmia", "olfactory loss", "smell loss", "taste loss", and "hypogeusia".

RESULTS

Our search identified 18 reviewed articles and 6 manuscript preprints, including a large epidemiological study, four observational case series, five case-controlled studies, five cross-sectional studies, five case series of anosmic patients and four electronic surveys. Great methodological differences were noted. A significant prevalence of anosmia is reported in COVID-19 patients. Controlled studies indicate that anosmia is more common in COVID-19 patients than in patients suffering from other viral infections or controls. Most of the studies reported either smell loss or smell plus taste loss. Less severe COVID-19 disease is related to a greater prevalence of anosmia. A quick recovery of the smell loss may be expected in most COVID-19 cases.

CONCLUSION

Anosmia is more prevalent in COVID-19 patients than in patients suffering from other respiratory infections or controls.

Authors+Show Affiliations

1st Otolaryngology Department, Medical Faculty, School of Health Sciences, Aristotle University of Thessaloniki, 54124, Thessaloníki, Greece. aprintza@auth.gr.1st Otolaryngology Department, Medical Faculty, School of Health Sciences, Aristotle University of Thessaloniki, 54124, Thessaloníki, Greece.

Pub Type(s)

Journal Article
Systematic Review

Language

eng

PubMed ID

32447496

Citation

Printza, Athanasia, and Jannis Constantinidis. "The Role of Self-reported Smell and Taste Disorders in Suspected COVID‑19." 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, vol. 277, no. 9, 2020, pp. 2625-2630.
Printza A, Constantinidis J. The role of self-reported smell and taste disorders in suspected COVID‑19. Eur Arch Otorhinolaryngol. 2020;277(9):2625-2630.
Printza, A., & Constantinidis, J. (2020). The role of self-reported smell and taste disorders in suspected COVID‑19. 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, 277(9), 2625-2630. https://doi.org/10.1007/s00405-020-06069-6
Printza A, Constantinidis J. The Role of Self-reported Smell and Taste Disorders in Suspected COVID‑19. Eur Arch Otorhinolaryngol. 2020;277(9):2625-2630. PubMed PMID: 32447496.
* Article titles in AMA citation format should be in sentence-case
TY - JOUR T1 - The role of self-reported smell and taste disorders in suspected COVID‑19. AU - Printza,Athanasia, AU - Constantinidis,Jannis, Y1 - 2020/05/23/ PY - 2020/05/09/received PY - 2020/05/18/accepted PY - 2020/5/25/pubmed PY - 2020/8/18/medline PY - 2020/5/25/entrez KW - Anosmia KW - COVID-19 KW - Loss of smell KW - Olfactory dysfunction KW - SARS-CoV-2 KW - Taste SP - 2625 EP - 2630 JF - 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 JO - Eur Arch Otorhinolaryngol VL - 277 IS - 9 N2 - PURPOSE: The sudden onset of smell and taste loss has been reported as a symptom related to COVID-19. There is urgent need to provide insight to the pandemic and evaluate anosmia as a potential screening symptom that might contribute to the decision to test suspected cases or guide quarantine instructions. METHODS: Systematic review of the PubMed/Medline, Cochrane databases and preprints up to May 3, 2020. Combined search terms included: "COVID-19", "SARS-CoV-2", "coronavirus", "nose", "anosmia", "hyposmia", "olfactory loss", "smell loss", "taste loss", and "hypogeusia". RESULTS: Our search identified 18 reviewed articles and 6 manuscript preprints, including a large epidemiological study, four observational case series, five case-controlled studies, five cross-sectional studies, five case series of anosmic patients and four electronic surveys. Great methodological differences were noted. A significant prevalence of anosmia is reported in COVID-19 patients. Controlled studies indicate that anosmia is more common in COVID-19 patients than in patients suffering from other viral infections or controls. Most of the studies reported either smell loss or smell plus taste loss. Less severe COVID-19 disease is related to a greater prevalence of anosmia. A quick recovery of the smell loss may be expected in most COVID-19 cases. CONCLUSION: Anosmia is more prevalent in COVID-19 patients than in patients suffering from other respiratory infections or controls. SN - 1434-4726 UR - https://www.unboundmedicine.com/medline/citation/32447496/The_role_of_self_reported_smell_and_taste_disorders_in_suspected_COVID‑19_ L2 - https://dx.doi.org/10.1007/s00405-020-06069-6 DB - PRIME DP - Unbound Medicine ER -