4.1 Article

Smell and taste loss in COVID-19 patients: assessment outcomes in a Victorian population

期刊

ACTA OTO-LARYNGOLOGICA
卷 141, 期 3, 页码 299-302

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TAYLOR & FRANCIS LTD
DOI: 10.1080/00016489.2020.1855366

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COVID-19; hyposmia; anosmia; hypogeusia; ageusia; smell; taste

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This study found that 74% of COVID-19 positive patients experienced olfactory or gustatory disturbances, with 34% still having hyposmia, 2% having anosmia, and 28% having hypogeusia or ageusia post-recovery. The study highlights the importance of these symptoms in prompting appropriate testing, quarantine precautions, early olfactory retraining, and the potential for continued sensory disturbance.
Background: It has been noted that olfactory and gustatory disturbances may precede or accompany the typical features of COVID-19, such as fever and cough. Hence, a high index of suspicion is required when patients report sudden loss of smell or taste, in order to facilitate timely diagnosis and isolation. Aims/objectives: The aim of this study was to assess the frequency of olfactory and gustatory disturbances in COVID-19 positive patients from a cohort representative of Melbourne, Australia. Methods: A retrospective descriptive study was conducted on patients who tested positive for COVID-19. Standardised phone consultations and online follow-up questionnaires were performed to assess clinical features of COVID-19, with a focus on smell and taste disorders. Results: The most frequent symptoms experienced were taste and smell disturbances with 74% experiencing either smell or taste disturbance or both. Post-recovery, 34% of patients continued to experience ongoing hyposmia and 2% anosmia, whereas 28% continued to suffer from hypogeusia or ageusia. Conclusion and significance: This study presents the high rates of improvement of both olfactory and gustatory disturbance in a short-lived period. It also highlights the importance of these symptoms in prompting appropriate testing, quarantine precautions, initiate early olfactory retraining and the potential for continued sensory disturbance.

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