Evidence map›Paper›PMID 33894627›Full record

ArticleAmerican journal of otolaryngology

Eight-month follow-up of olfactory and gustatory dysfunctions in recovered COVID-19 patients.

Ameen Biadsee, Or Dagan, Zeev Ormianer, Firas Kassem, Shchada Masarwa, Ameer Biadsee

Open access · greenAbstract read
In one paragraph

Article in American journal of otolaryngology. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 32 papers, 5 of them syntheses that pooled it.

0numbers the graph read from it
0cells of the map it votes in
32citing papers in PubMed, 5 pooled it
5.9field-weighted citation impact, top 2% of its field
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

32 citing papers in PubMed, 5 syntheses or guidelines pooled it, 52 citations in OpenAlex.

  1. Pooled it
  2. Global prevalence of post-COVID-19 condition: a systematic review and meta-analysis of prospective evidence.Health promotion and chronic disease prevention in Canada : research, policy and practice · 2025
    Pooled it
  3. Prevalence of post-acute COVID-19 syndrome symptoms at different follow-up periods: a systematic review and meta-analysis.Clinical microbiology and infection : the official publication of the European Society of Clinical Microbiology and Infectious Diseases · 2022
    Pooled it
  4. Long COVID, audiovestibular symptoms and persistent chemosensory dysfunction: a systematic review of the current evidence.Acta otorhinolaryngologica Italica : organo ufficiale della Societa italiana di otorinolaringologia e chirurgia cervico-facciale · 2022
    Pooled it
  5. Pooled it
  6. Article
  7. Article
  8. Xerostomia after COVID-19 recovery: A preliminary investigation.The Indian journal of medical research · 2026
    Observational
  9. Review
  10. Article
  11. Article
  12. Article
  13. Article
  14. Review
  15. Article
  16. Long-term Consequences of COVID-19: Chemosensory Disorders.Current allergy and asthma reports · 2023
    Review
  17. COVID-19 Oral Sequelae: Persistent Gustatory and Saliva Secretory Dysfunctions after Recovery from COVID-19.Medical principles and practice : international journal of the Kuwait University, Health Science Centre · 2023
    Review
  18. Evidence of a Sjögren's disease-like phenotype following COVID-19.medRxiv : the preprint server for health sciences · 2022
    Article
  19. Article
  20. Review
4 · The record

Corrections and comments

5 · Who and what money

Authors and funding

6 authors at 2 institutions in 1 country.

Ameen BiadseeDepartment of Otorhinolaryngology - Head and Neck Surgery, Meir Medical Center, Kfar-Saba, Israel; Sackler Faculty of Medicine, Tel Aviv University, Tel Aviv, Israel. Electronic address: aminbiadsee@tauex.tau.ac.il.
Or DaganSackler Faculty of Medicine, Tel Aviv University, Tel Aviv, Israel.
Zeev OrmianerDepartment of Oral Rehabilitation, The Maurice and Gabriela Goldschleger School of Dental Medicine, Tel Aviv University, Tel Aviv, Israel.
Firas KassemDepartment of Otorhinolaryngology - Head and Neck Surgery, Meir Medical Center, Kfar-Saba, Israel; Sackler Faculty of Medicine, Tel Aviv University, Tel Aviv, Israel.
Shchada MasarwaDepartment of Oral Rehabilitation, The Maurice and Gabriela Goldschleger School of Dental Medicine, Tel Aviv University, Tel Aviv, Israel.
Ameer BiadseeDepartment of Oral Rehabilitation, The Maurice and Gabriela Goldschleger School of Dental Medicine, Tel Aviv University, Tel Aviv, Israel.
Tel Aviv University · ILMeir Medical Center · IL

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

purposeTo investigate the recovery of loss of smell and taste among recovered COVID-19 patients. MATERIALS AND

methodsThis cross-sectional follow-up study is a sequel to a study by Biadsee et al. Among the previous study population of 128 non-hospitalized patients, positive for COVID-19 by reverse transcription-polymerase chain reaction (RT-PCR), 97 patients participated in a survey designed for this study. Information and data regarding loss of smell and taste, rate of recovery, xerostomia, and additional symptoms; (Cough, Myalgia, Weakness, Rhinorrhea, Nasal congestion) were collected.

resultsA total of 43 men and 54 women were included. Mean age was 37.5 years (range 19-74). Mean follow-up was 229 days (range 191-253). Sixty-five patients reported gustatory dysfunction during the disease of which 61.5% reported full recovery, 38.5% partial recovery. Of 65 patients who reported olfactory impairment during the disease, 52% had full recovery and 48% reported partial recovery of olfactory function. Complete recovery of olfactory function was positively associated with full recovery of gustatory function (p = 0.01). Gender did not significantly affect the recovery of OD and GD (p = 0.45, p = 0.90, respectively). Patients who experienced olfactory dysfunction as an initial symptom had lower rates of olfactory complete recovery (p = 0.043).

conclusionAfter a mean follow-up of 229 days, complete recovery of smell and taste functions occurred in 52% and 61.5%, respectively. However, dysfunction persisted in 48%-38.5% of patients.

Indexed as

AdultAgedCOVID-19Cross-Sectional StudiesFemaleFollow-Up StudiesHumansIsraelMaleMiddle AgedOlfaction DisordersPrevalenceRecovery of FunctionSurveys and QuestionnairesTaste DisordersTime FactorsCOVID-19 recoveryGustatory dysfunctionOlfactory dysfunctionPost-viral olfactory function lossXerostomia

Identifiers

PMID33894627
PMCPMC8055924
OpenAlexW3156695785

What OpenQuestion holds

Textmetadata
Read underepoch 390

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.