Evidence map›Paper›PMID 32782030›Full record

ArticleThe Journal of laryngology and otology2020

Smell and taste recovery in coronavirus disease 2019 patients: a 60-day objective and prospective study.

L A Vaira, C Hopkins, M Petrocelli, J R Lechien, C M Chiesa-Estomba, G Salzano, M Cucurullo, F A Salzano, S Saussez, P Boscolo-Rizzo and 2 more

Abstract readMulticenter Study
In one paragraph

Article in The Journal of laryngology and otology, 2020. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 103 papers, 9 of them syntheses that pooled it.

0numbers the graph read from it
0cells of the map it votes in
103citing papers in PubMed, 9 pooled it
–field-weighted citation impact
1 · What the graph read from it

What it found

Each row is one number read from the abstract, on the scale the paper reported it, with its interval. Left of the dashed line favours the treatment, right favours the comparator. Under each row is the sentence it came from. New to these charts? A ten-minute tutorial.

The abstract states no effect estimate the extractor could read, or names no intervention and outcome on the map, so this paper lights no cell and moves no belief. It is still indexed, cited and linked below.

2 · The registry

The trial behind it

Trials whose registry record cites this paper, or whose number appears in the abstract. A trial that started after this paper was published is citing it as background, not reporting it.

Neither the registry nor the abstract names a trial number. If this is a trial report, that itself is worth knowing.

3 · Its place in the literature

Who cites it

103 citing papers in PubMed, 9 syntheses or guidelines pooled it.

  1. Pooled it
  2. Neurological and Head/Eyes/Ears/Nose/Throat Manifestations of COVID-19: A Systematic Review and Meta-Analysis.The Canadian journal of neurological sciences. Le journal canadien des sciences neurologiques · 2022
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  9. Neurological Complications of COVID-19 and Possible Neuroinvasion Pathways: A Systematic Review.International journal of environmental research and public health · 2020
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  15. Limited observed efficacy of olfactory training in severe long-term post-COVID-19 syndrome: a prospective cohort study.European archives of oto-rhino-laryngology : official journal of the European Federation of Oto-Rhino-Laryngological Societies (EUFOS) : affiliated with the German Society for Oto-Rhino-Laryngology - Head and Neck Surgery · 2026
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43 more citing papers are in PubMed but not listed here.

4 · The record

Corrections and comments

PubMed lists nothing against this paper. Absence here is not a guarantee, only a check that was made.

5 · Who and what money

Authors and funding

12 authors.

L A VairaMaxillofacial Surgery Operative Unit, University Hospital of Sassari, Italy.
C HopkinsENT Department, King's College, London, UK.
M PetrocelliMaxillofacial Surgery Operative Unit, Bellaria-Maggiore Hospital, Un'azienda Sanitaria Locale ('AUSL') Bologna, Italy.
J R LechienCOVID-19 Task Force of the Young Otolaryngologists of the International Federation of Oto-rhino-laryngological Societies ('YO-IFOS').
C M Chiesa-EstombaCOVID-19 Task Force of the Young Otolaryngologists of the International Federation of Oto-rhino-laryngological Societies ('YO-IFOS').
G SalzanoMaxillofacial Surgery Unit, University Hospital of Naples 'Federico II', Italy.
M CucurulloMaxillofacial Surgery Department, San Paolo Hospital, Azienda Socio Sanitaria Territoriale ('ASST') Santi Paolo e Carlo, University of Milan, Italy.
F A SalzanoOtolaryngology Operative Unit, Department of Medicine, Surgery and Dentistry, 'Scuola Medica Salernitana', University of Salerno, Italy.
S SaussezCOVID-19 Task Force of the Young Otolaryngologists of the International Federation of Oto-rhino-laryngological Societies ('YO-IFOS').
P Boscolo-RizzoDepartment of Neurosciences, Section of Otolaryngology, University of Padua, Treviso, Italy.
F BiglioliMaxillofacial Surgery Department, San Paolo Hospital, Azienda Socio Sanitaria Territoriale ('ASST') Santi Paolo e Carlo, University of Milan, Italy.
G De RiuMaxillofacial Surgery Operative Unit, University Hospital of Sassari, Italy.

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

backgroundThe long-term recovery rate of chemosensitive functions in coronavirus disease 2019 patients has not yet been determined.

methodA multicentre prospective study on 138 coronavirus disease 2019 patients was conducted. Olfactory and gustatory functions were prospectively evaluated for 60 days.

resultsWithin the first 4 days of coronavirus disease 2019, 84.8 per cent of patients had chemosensitive dysfunction that gradually improved over the observation period. The most significant increase in chemosensitive scores occurred in the first 10 days for taste and between 10 and 20 days for smell. At the end of the observation period (60 days after symptom onset), 7.2 per cent of the patients still had severe dysfunctions. The risk of developing a long-lasting disorder becomes significant at 10 days for taste (odds ratio = 40.2, 95 per cent confidence interval = 2.204-733.2, p = 0.013) and 20 days for smell (odds ratio = 58.5, 95 per cent confidence interval = 3.278-1043.5, p = 0.005).

conclusionChemosensitive disturbances persisted in 7.2 per cent of patients 60 days after clinical onset. Specific therapies should be initiated in patients with severe olfactory and gustatory disturbances 20 days after disease onset.

Indexed as

AdultBetacoronavirusCoronavirus InfectionsCOVID-19FemaleHumansItalyMaleMiddle AgedOlfaction DisordersPandemicsPneumonia, ViralProspective StudiesRecovery of FunctionSARS-CoV-2SmellAgeusiaAnosmiaCoronavirusCOVID-19Gustatory DysfunctionHypogeusiaSARS-CoV-2SmellTaste

Identifiers

PMID32782030
PMCPMC7471571

What OpenQuestion holds

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LicenceCC BY
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Registered trials

None linked

Read under generation 80e0d062 · epoch 390. Bibliography from PubMed, PubMed Central and OpenAlex; grants from NIH RePORTER; trial links from ClinicalTrials.gov; estimates, votes and beliefs from the OpenQuestion graph.