The outcome of olfactory impairment in patients with otherwise paucisymptomatic coronavirus disease 2019 during the pandemic.
J Laryngol Otol
; 135(5): 426-435, 2021 May.
Article
in English
| MEDLINE | ID: covidwho-1196805
ABSTRACT
OBJECTIVE:
This study aimed to measure the duration and recovery rate of olfactory loss in patients complaining of recent smell loss as their prominent symptom during the coronavirus disease 2019 outbreak.METHOD:
This was a prospective telephone follow-up observational study of 243 participants who completed an online survey that started on 12 March 2020.RESULTS:
After a mean of 5.5 months from the loss of smell onset, 98.3 per cent of participants reported improvement with a 71.2 per cent complete recovery rate after a median of 21 days. The chance of complete recovery significantly decreased after 131 days from the onset of loss of smell (100 per cent sensitive and 97.7 per cent specific). Younger age and isolated smell loss were associated with a rapid recovery, whereas accompanying rhinological and gastrointestinal symptoms were associated with longer loss of smell duration.CONCLUSION:
Smell loss, occurring as a prominent symptom during the coronavirus disease 2019 pandemic, showed a favourable outcome. However, after 5.5 months from the onset, around 10 per cent of participants still complained of moderate or severe hyposmia.Keywords
Full text:
Available
Collection:
International databases
Database:
MEDLINE
Main subject:
Anosmia
/
COVID-19
/
Olfaction Disorders
Type of study:
Cohort study
/
Diagnostic study
/
Observational study
/
Prognostic study
/
Randomized controlled trials
Topics:
Long Covid
Limits:
Adult
/
Female
/
Humans
/
Pregnancy
Country/Region as subject:
Asia
Language:
English
Journal:
J Laryngol Otol
Journal subject:
Otolaryngology
Year:
2021
Document Type:
Article
Affiliation country:
S0022215121001110
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