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Background and Objectives Olfactory and gustatory dysfunctions have been known as characteristic symptoms of coronavirus disease 2019 (COVID-19). However, the study of the clinical features of olfactory and gustatory dysfunctions in COVID-19 is still insufficient.Subjects and Method Mild COVID-19 patients who complained of olfactory or gustatory dysfunctions in the telephone monitoring from March 8 to April 8, 2020 were included in this study. Patient information was collected using a Google questionnaire. COVID-19 symptoms, severity and improvement of olfactory and gustatory dysfunctions of patients were investigated.Results A total of 228 patients participated in this study. The number of male and female were 76 and 152, and the average age was 32.1±11.5 years. There were 210 patients (92.1%) of olfactory dysfunction, 179 patients (78.5%) of gustatory dysfunction, and 165 patients (71.4%) who complained of both symptoms. The 18.4% of patients complained only olfactory or gustatory dysfunction without other symptoms of COVID-19, and 51.1% of patients presented olfactory and gustatory dysfunctions as the first symptoms. Most of the patients (95.6%) improved olfactory and gustatory dysfunctions within several months, but only 79.8% of patients were normalized.Conclusion Since olfactory and gustatory dysfunctions are the first symptoms in the numerous COVID-19 patients, and continued research on these patients play an important role in the screening and prevention of COVID-19. Long-term observation and further studies of treatment are needed for 20.2% of patients who have not fully recovered. |
