Observational studyPloS one2021
Characterization of dysphagia and laryngeal findings in COVID-19 patients treated in the ICU-An observational clinical study.
Observational study in PloS one, 2021. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 34 papers.
What it found
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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.
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.
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Who cites it
34 citing papers in PubMed, 68 citations in OpenAlex.
- Laryngeal Dysfunction Following COVID-19: A TriNetX Retrospective Cohort Study.The Laryngoscope · 2026Article
- The Influence of Liquid Consistency and Food Texture on Swallowing: A Systematic Review Update.Dysphagia · 2026Review
- Article
- Pharyngolaryngeal Abnormalities viewed via nasoendoscopy associated with Oropharyngeal Dysphagia in Adults: A Scoping Review.Dysphagia · 2026Article
- Physiological barriers to oral intake in survivors of critical illness: A scoping review.Nutrition in clinical practice : official publication of the American Society for Parenteral and Enteral Nutrition · 2026Article
- Article
- Long-term effects on swallowing and laryngeal function after treatment for severe COVID-19 disease in intensive care.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 · 2024Article
- Dysphagia characteristics at FEES examination in post-extubation patients with COVID-19.Acta otorhinolaryngologica Italica : organo ufficiale della Societa italiana di otorinolaringologia e chirurgia cervico-facciale · 2024Article
- Therapeutic approach to dysphagia in post-COVID patients in a rehabilitation unit: a descriptive longitudinal study.European journal of physical and rehabilitation medicine · 2024Observational
- The Impact of Frailty, Oropharyngeal Dysphagia and Malnutrition on Mortality in Older Patients Hospitalized for Covid-19.Aging and disease · 2024Article
- Dysphagia in patients with severe COVID-19: a retrospective study.Scientific reports · 2024Article
- Dysphagia Prevalence and Outcomes Associated with the Evolution of COVID-19 and Its Variants in Critically Ill Patients.Dysphagia · 2024Observational
- Comparative Analysis of the Prevalence of Dysphagia in Patients with Mild COVID-19 and Those with Aspiration Pneumonia Alone: Findings of the Videofluoroscopic Swallowing Study.Medicina (Kaunas, Lithuania) · 2023Review
- Airway management during unusual tracheal stenosis: A clinical feasibility trial.Laryngoscope investigative otolaryngology · 2023Article
- Screening for oropharyngeal dysphagia in hospitalized COVID-19 patients: a prospective 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 · 2023Article
- Clinical profile and recovery pattern of dysphagia in the COVID-19 patient: A prospective observational cohort within NSW.Australian critical care : official journal of the Confederation of Australian Critical Care Nurses · 2023Observational
- Implementation of a free water protocol at a long term acute care hospital.Scientific reports · 2023Article
- Functional Recovery and Nutrition Management among Severe COVID-19 Cases during Post-extubation Hospitalization: A Case Series.Progress in rehabilitation medicine · 2023Article
- Current opinion of presentation of dysphagia and dysphonia in patients with coronavirus disease 2019.Current opinion in otolaryngology & head and neck surgery · 2022Review
- A multi-disciplinary rehabilitation approach for people surviving severe COVID-19-a case series and literature review.Journal of the Formosan Medical Association = Taiwan yi zhi · 2022Review
Corrections and comments
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Authors and funding
5 authors at 1 institution in 1 country.
Funding
No grant is acknowledged in the PubMed record.
Abstract
backgroundDysphagia appears to be common in patients with severe COVID-19. Information about the characteristics of dysphagia and laryngeal findings in COVID-19 patients treated in the intensive care unit (ICU) is still limited.
objectivesThe aim of this study was to evaluate oropharyngeal swallowing function and laryngeal appearance and function in patients with severe COVID-19.
methodA series of 25 ICU patients with COVID-19 and signs of dysphagia were examined with fiberendoscopic evaluation of swallowing (FEES) during the latter stage of ICU care or after discharge from the ICU. Swallowing function and laryngeal findings were assessed with standard rating scales from video recordings.
resultsPooling of secretions was found in 92% of patients. Eleven patients (44%) showed signs of silent aspiration to the trachea on at least one occasion. All patients showed residue after swallowing to some degree both in the vallecula and hypopharynx. Seventy-six percent of patients had impaired vocal cord movement. Erythema of the vocal folds was found in 60% of patients and edema in the arytenoid region in 60%.
conclusionImpairment of oropharyngeal swallowing function and abnormal laryngeal findings were common in this series of patients with severe COVID-19 treated in the ICU. To avoid complications related to dysphagia in this patient group, it seems to be of great importance to evaluate the swallowing function as a standard procedure, preferably at an early stage, before initiation of oral intake. Fiberendoscopic evaluation of swallowing is preferred due to the high incidence of pooling of secretion in the hypopharynx, silent aspiration, and residuals. Further studies of the impact on swallowing function in short- and long-term in patients with COVID-19 are warranted.
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