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Olfactory and Gustatory Outcomes in COVID-19: A Prospective Evaluation in Nonhospitalized Subjects.


ABSTRACT: Objective: To prospectively assess the rate and timing of recovery of olfactory (OD) and gustatory (GD) dysfunction in patients affected by COVID-19.

Study design: Cohort study.

Setting: Population-based evaluation in a COVID-19 high-prevalence region.

Subjects and methods: We analyzed the clinical course of OD and GD in a cohort of home-quarantined SARS-CoV-2-positive patients from Northern Italy. Physicians administered a survey-based questionnaire at recruitment (T0). During follow-up, patients responded to online dedicated surveys modulated according to symptoms at T0.

Results: A total of 151 patients completed the follow-up survey. OD and/or GD were observed in 83% and 89% of subjects, respectively. Resolution rates of OD and GD at 30 days from onset were 87% and 82%, respectively. Risk factors for late resolution were grade of dysfunction at onset (total vs partial), gender, and presence of nasal congestion. Three (2%) patients previously reporting complete resolution of symptoms complained of subsequent recurrence of OD and/or GD after a mean of 19 days from resolution of the previous episode.

Conclusion: COVID-19-related OD and GD had high rate of resolution in the first month from onset of symptoms. However, in 10% to 15% of patients, these symptoms showed only partial improvement after this period.

SUBMITTER: Paderno A 

PROVIDER: S-EPMC7331108 | biostudies-literature | 2020 Dec

REPOSITORIES: biostudies-literature

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Olfactory and Gustatory Outcomes in COVID-19: A Prospective Evaluation in Nonhospitalized Subjects.

Paderno Alberto A   Mattavelli Davide D   Rampinelli Vittorio V   Grammatica Alberto A   Raffetti Elena E   Tomasoni Michele M   Gualtieri Tommaso T   Taboni Stefano S   Zorzi Silvia S   Del Bon Francesca F   Lombardi Davide D   Deganello Alberto A   Redaelli De Zinis Luca Oscar LO   Schreiber Alberto A  

Otolaryngology--head and neck surgery : official journal of American Academy of Otolaryngology-Head and Neck Surgery 20200630 6


<h4>Objective</h4>To prospectively assess the rate and timing of recovery of olfactory (OD) and gustatory (GD) dysfunction in patients affected by COVID-19.<h4>Study design</h4>Cohort study.<h4>Setting</h4>Population-based evaluation in a COVID-19 high-prevalence region.<h4>Subjects and methods</h4>We analyzed the clinical course of OD and GD in a cohort of home-quarantined SARS-CoV-2-positive patients from Northern Italy. Physicians administered a survey-based questionnaire at recruitment (T0).  ...[more]

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