RT Journal Article
SR Electronic
T1 Olfactory dysfunction among patients with COVID-19
JF Saudi Medical Journal
JO Saudi Med J
FD Prince Sultan Military Medical City
SP 1085
OP 1103
DO 10.15537/smj.2023.44.11.20230264
VO 44
IS 11
A1 Feras M. Alkholaiwi
A1 Alhanouf F. Altamimi
A1 Hanan H. Almalki
A1 Fay A. Almughaiseeb
A1 Shoug S. Alsubaie
A1 Hessah S. Alsayahi
A1 Fras W. Alhijli
A1 Reema S. Alobaishi
A1 Amit Agrawal
A1 Zuhour A. Alqahtani
A1 Fahad Z. Alotaibi
YR 2023
UL http://smj.org.sa/content/44/11/1085.abstract
AB Objectives: To assess the frequency of olfactory dysfunction (OD) among individuals afflicted with coronavirus disease of 2019 (COVID-19).Methods: A comprehensive literature search was carried out across several bibliographical databases (PubMed, Scopus, Google Scholar, and Web of Science) to extract publications in the English language between January 2020 and December 2021 to report the incidence of OD alone or together with gustatory dysfunction (GD) among COVID-19 patients.Results: Based on eligibility criteria, 84 articles were included from 27 countries, comprising 36,903 patients, of whom 58.1% were females. The generality rates of olfactory impairment alone was 34.60% and in conjunction with GD was 11.36%. Patients with OD were subclassified into various categories, and the prevalence of anosmia was 20.85%, 5.04% for hyposmia, 8.88% for anosmia or hyposmia, 1.84% for parosmia, 0.78% for phantosmia, and 0.02% for hyperosmia, among COVID-19 patients.Conclusion: Clinical features associated with OD, either isolated or in combination with GD, are common in patients with COVID-19 and consider important signs of COVID-19 that may guide clinicians in the early phase of the disease.PROSPERO Reg. No.: 417296