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Meta-Analysis
. 2023 May;168(5):935-943.
doi: 10.1002/ohn.168. Epub 2023 Feb 26.

Is Postextubation Dysphagia Underestimated in the Era of COVID-19? A Systematic Review and Meta-analysis

Chung-Wei Lin  1 , Ting-Yi Chiang  1 , Wen-Ching Chen  2 , Li-Wen Chiu  1 , Yung-Chung Su  2 , Hsin-Ching Lin  3   4   5   6 , Chun-Tuan Chang  5
Affiliations
Meta-Analysis

Is Postextubation Dysphagia Underestimated in the Era of COVID-19? A Systematic Review and Meta-analysis

Chung-Wei Lin et al. Otolaryngol Head Neck Surg. 2023 May.

Abstract

Objective: To investigate the incidence rate of postextubation dysphagia (PED) in patients with COVID-19, as well as relative factors potentially influencing the clinical course of dysphagia.

Data sources: Six databases including PubMed, MEDLINE, Embase, ScienceDirect, the Cochrane Central Register of Controlled Trials (CENTRAL), and Web of Science were searched with no restriction on the language.

Review methods: The Preferred Reporting Items for Systematic Reviews and Meta-Analyses (PRISMA) guidelines were followed. Data were extracted and cross-examined among 3 of the authors. The random-effects model was adopted for the statistical synthesis. The percentage and 95% confidence interval (CI) were adopted as the effect measurements of the PED incidence rate. Subgroup analyses, sensitivity analyses, and metaregression were also performed to identify the heterogeneity among the studies.

Results: A total of 594 patients were enrolled and analyzed from the 10 eligible studies. The weighted incidence of PED in patients with COVID-19 was 66.5% (95% CI: 49.7%-79.9%). Age was the potential factor influencing the incidence rate after heterogeneity was adjusted by the metaregression analysis.

Conclusion: Compared to the current evidence reporting only 41% of the non-COVID patients experienced PED, our study further disclosed that a higher 66.5% of COVID-19 patients suffered from PED, which deserves global physicians' attention. With the association between COVID-19 and dysphagia having been more clearly understood, future clinicians are suggested to identify intubated patients' risk factors earlier to strengthen PED care programs in the era of COVID-19.

Keywords: coronavirus; deglutition disorders; incidence; intubation; ventilation.

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