Early recovery following new onset anosmia during the COVID-19 pandemic – an observational cohort study
Abstract Background A rapidly evolving evidence suggests that smell and taste disturbance are common symptoms in COVID-19 infection. As yet there are no reports on duration and recovery rates. We set out to characterise patients reporting new onset smell and taste disturbance during the COVID-19 pan...
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doaj-a07c9772afd041aaa9ada74f2af220c82020-11-25T02:12:11ZengBMCJournal of Otolaryngology - Head and Neck Surgery1916-02162020-05-014911610.1186/s40463-020-00423-8Early recovery following new onset anosmia during the COVID-19 pandemic – an observational cohort studyClaire Hopkins0Pavol Surda1Emily Whitehead2B. Nirmal Kumar3Guy’s and St Thomas’ HospitalsGuy’s and St Thomas’ HospitalsNewstead Wood SchoolEdge Hill University Medical SchoolAbstract Background A rapidly evolving evidence suggests that smell and taste disturbance are common symptoms in COVID-19 infection. As yet there are no reports on duration and recovery rates. We set out to characterise patients reporting new onset smell and taste disturbance during the COVID-19 pandemic and report on early recovery rates. Methods Online Survey of patients reporting self-diagnosed new onset smell and taste disturbance during the COVID-19 pandemic, with 1 week follow-up. Results Three hundred eighty-two patents completed bot an initial and follow-up survey. 86.4% reported complete anosmia and a further 11.5% a very severe loss of smell at the time of completing the first survey. At follow-up 1 week later, there is already significant improvement in self-rating of severity of olfactory loss. 80.1% report lower severity scores at follow-up, 17.6% are unchanged and 1.9% are worse. 11.5% already report compete resolution at follow up, while 17.3% report persistent complete loss of smell, with reported duration being 1 to over 4 weeks. This is reflected in the overall cumulative improvement rate of 79% patients overall in the interval between surveys. Conclusions A review of the growing evidence base supports the likelihood that out cohort have suffered olfactory loss as part of COVID-19 infection. While early recovery rates are encouraging, long term rates will need to be further investigated and there may be an increase in patients with persistent post-viral loss as a result of the pandemic. We further call for loss of sense of smell to be formerly recognised as a marker of COVID-19 infection.http://link.springer.com/article/10.1186/s40463-020-00423-8COVID-19AnosmiaEpidemiologyOlfactory dysfunction |
collection |
DOAJ |
language |
English |
format |
Article |
sources |
DOAJ |
author |
Claire Hopkins Pavol Surda Emily Whitehead B. Nirmal Kumar |
spellingShingle |
Claire Hopkins Pavol Surda Emily Whitehead B. Nirmal Kumar Early recovery following new onset anosmia during the COVID-19 pandemic – an observational cohort study Journal of Otolaryngology - Head and Neck Surgery COVID-19 Anosmia Epidemiology Olfactory dysfunction |
author_facet |
Claire Hopkins Pavol Surda Emily Whitehead B. Nirmal Kumar |
author_sort |
Claire Hopkins |
title |
Early recovery following new onset anosmia during the COVID-19 pandemic – an observational cohort study |
title_short |
Early recovery following new onset anosmia during the COVID-19 pandemic – an observational cohort study |
title_full |
Early recovery following new onset anosmia during the COVID-19 pandemic – an observational cohort study |
title_fullStr |
Early recovery following new onset anosmia during the COVID-19 pandemic – an observational cohort study |
title_full_unstemmed |
Early recovery following new onset anosmia during the COVID-19 pandemic – an observational cohort study |
title_sort |
early recovery following new onset anosmia during the covid-19 pandemic – an observational cohort study |
publisher |
BMC |
series |
Journal of Otolaryngology - Head and Neck Surgery |
issn |
1916-0216 |
publishDate |
2020-05-01 |
description |
Abstract Background A rapidly evolving evidence suggests that smell and taste disturbance are common symptoms in COVID-19 infection. As yet there are no reports on duration and recovery rates. We set out to characterise patients reporting new onset smell and taste disturbance during the COVID-19 pandemic and report on early recovery rates. Methods Online Survey of patients reporting self-diagnosed new onset smell and taste disturbance during the COVID-19 pandemic, with 1 week follow-up. Results Three hundred eighty-two patents completed bot an initial and follow-up survey. 86.4% reported complete anosmia and a further 11.5% a very severe loss of smell at the time of completing the first survey. At follow-up 1 week later, there is already significant improvement in self-rating of severity of olfactory loss. 80.1% report lower severity scores at follow-up, 17.6% are unchanged and 1.9% are worse. 11.5% already report compete resolution at follow up, while 17.3% report persistent complete loss of smell, with reported duration being 1 to over 4 weeks. This is reflected in the overall cumulative improvement rate of 79% patients overall in the interval between surveys. Conclusions A review of the growing evidence base supports the likelihood that out cohort have suffered olfactory loss as part of COVID-19 infection. While early recovery rates are encouraging, long term rates will need to be further investigated and there may be an increase in patients with persistent post-viral loss as a result of the pandemic. We further call for loss of sense of smell to be formerly recognised as a marker of COVID-19 infection. |
topic |
COVID-19 Anosmia Epidemiology Olfactory dysfunction |
url |
http://link.springer.com/article/10.1186/s40463-020-00423-8 |
work_keys_str_mv |
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