Evidence map›Paper›PMID 33176530›Full record

ArticleActa oto-laryngologica2021

The coronavirus disease 2019: the prevalence, prognosis, and recovery from olfactory dysfunction (OD).

Seyed Hadi Samimi Ardestani, Mojtaba Mohammadi Ardehali, Mahtab Rabbani Anari, Benyamin Rahmaty, Reza Erfanian, Maryam Akbari, Zohre Motedayen, Fahimeh Samimi Niya, Radmehr Aminloo, Farbod Farahbakhsh and 4 more

Abstract readMulticenter Study
In one paragraph

Article in Acta oto-laryngologica, 2021. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 12 papers, 2 of them syntheses that pooled it.

0numbers the graph read from it
0cells of the map it votes in
12citing papers in PubMed, 2 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

12 citing papers in PubMed, 2 syntheses or guidelines pooled it.

  1. Systematic review and meta-analysis of olfactory and gustatory dysfunction in COVID-19.International journal of infectious diseases : IJID : official publication of the International Society for Infectious Diseases · 2022
    Pooled it
  2. Pooled it
  3. Recovery Patterns of COVID-19 Related Smell Disorders: An Analysis of the Available Evidence.Indian journal of otolaryngology and head and neck surgery : official publication of the Association of Otolaryngologists of India · 2023
    Article
  4. Article
  5. Article
  6. Review
  7. The course of subjective and objective chemosensory dysfunction in hospitalized patients with COVID-19: a 6-month follow-up.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 · 2021
    Article
  8. Review
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  12. Neurological sequelae of COVID-19: a review.The Egyptian journal of neurology, psychiatry and neurosurgery · 2021
    Review
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

14 authors.

Seyed Hadi Samimi ArdestaniOtorhinolaryngology Research Center, Amir Alam Hospital, Tehran University of Medical Sciences, Tehran, Iran.
Mojtaba Mohammadi ArdehaliOtorhinolaryngology Research Center, Amir Alam Hospital, Tehran University of Medical Sciences, Tehran, Iran.
Mahtab Rabbani AnariOtorhinolaryngology Research Center, Amir Alam Hospital, Tehran University of Medical Sciences, Tehran, Iran.
Benyamin RahmatyOtorhinolaryngology Research Center, Amir Alam Hospital, Tehran University of Medical Sciences, Tehran, Iran.ORCID https://orcid.org/0000-0003-1487-4385
Reza ErfanianOtorhinolaryngology Research Center, Amir Alam Hospital, Tehran University of Medical Sciences, Tehran, Iran.
Maryam AkbariDepartment of Otolaryngology - Head and Neck Surgery, Otorhinolaryngology Research Center, School of Medicine, Guilan University of Medical Sciences, Rasht, Iran.
Zohre MotedayenOtorhinolaryngology Research Center, Mashhad University of Medical Sciences, Mashhad, Iran.
Fahimeh Samimi NiyaOtorhinolaryngology Research Center, Yazd University of Medical Sciences, Yazd, Iran.
Radmehr AminlooDepartment of Internal Medicine, Masih Daneshvari Hospital, Shahid Beheshti University of Medical Sciences, Tehran, Iran.
Farbod FarahbakhshOtorhinolaryngology Research Center, Amir Alam Hospital, Tehran University of Medical Sciences, Tehran, Iran.
Ali HosseininasabInfectious and Tropical Diseases Research Center, Kerman University of Medical Sciences, Kerman, Iran.
Babak HassanloueiDepartment of Epidemiology, School of Public Health, Iran University of Medical Sciences, Tehran, Iran.
Naime RezaianOtorhinolaryngology Research Center, Mashhad University of Medical Sciences, Mashhad, Iran.
Zahra MokhtariOtorhinolaryngology Research Center, Amir Alam Hospital, Tehran University of Medical Sciences, Tehran, Iran.

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

backgroundMany patients with coronavirus disease 2019 (COVID-19) complain from olfactory dysfunction (OD). MATERIAL AND

methodsIn this study, patients with COVID-19 symptoms who were referred to six different tertiary referral centres were recruited after positive results for COVID-19. All patients were assessed for a one-month follow-up after the initial diagnosis of COVID-19.

resultsThree hundred and eleven patients with COVID-19 were recruited in the present study. Two hundred and seven patients (66.6%) had a recent history of OD. One hundred and seventy-eight patients had experienced OD as a primary symptom intercurrent to other COVID-19 symptoms or solely. Sixty-nine patients had OD at the time of presentation to referral centres. Headache and nasal obstruction had significant relationships with recovery from OD in this subgroup, and the platelet count was the most important predictor for the recovery from OD. One hundred seventy-nine (86.4%) patients were nearly or fully recovered from OD approximately a month after the onset of OD.

conclusionHeadache, nasal obstruction, and platelet count may have specific roles as prognostic factors in the recovery from OD.

Indexed as

AdultAgedCOVID-19Cross-Sectional StudiesFemaleFollow-Up StudiesHumansMaleMiddle AgedOlfaction DisordersPrevalencePrognosisRecovery of FunctionRisk FactorsSymptom AssessmentTime FactorsAnosmia coronavirus disease 2019 (COVID-19)hyposmia olfactory dysfunction (OD)

Identifiers

PMID33176530
PMCPMC7678411

What OpenQuestion holds

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Registered trials

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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.