ArticleEuropean journal of case reports in internal medicine2023
Successful Treatment of Post COVID-19 Neurogenic Dysphagia with Botulinum Toxin.
Article in European journal of case reports in internal medicine, 2023. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 1 paper.
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1 citing paper in PubMed, 1 citations in OpenAlex.
- Before Quadriparesis with Dysphagia can be Attributed to Covid-19, All Differential Causes Must Be Excluded.European journal of case reports in internal medicine · 2024Article
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8 authors at 2 institutions in 1 country.
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Abstract
Introduction: Dysphagia in post COVID-19 patients could be caused by several factors, including reduced pharyngolaryngeal coordination due to SARS-CoV-2 tropism to the central and/or peripheral nervous system. To our knowledge, this is the first reported case of COVID-19-related dysphagia successfully treated with botulinum toxin type A injection. Case description: We report the case of a patient with severe oropharyngeal dysphagia due to COVID-19 confirmed by fibre endoscopy. As a result, the patient required an enteral feeding tube. After two months of traditional swallowing therapies, there was only limited improvement. An electrophysiologic evaluation of the cricopharyngeal muscle was performed and showed a normal inhibition of the cricopharyngeal muscle, followed by a hypertonic rebound. Based on this result, we decided to perform a unilateral laryngeal injection of botulinum toxin type A. After the injection, the patient's swallowing function improved significantly, allowing him to return to oral feeding. Discussion: Newly diagnosed oropharyngeal dysphagia was found in 35.3% of hospitalised patients with COVID-19. There are several possible causes of COVID-19-associated dysphagia, including stroke, encephalitis, critical illness neuropathy, Guillain-Barré syndrome and skeletal muscle injury. In our case, since stroke was excluded by brain MRI, cranial nerve injury was a possible explanation for the difficult recovery of swallowing despite daily swallowing therapy. Conclusion: We suggest that electrophysiology is a valid tool for the diagnosis and follow-up of patients with oropharyngeal dysphagia. LEARNING POINTS: SARS-CoV-2 tropism to the central and/or peripheral nervous system can cause dysphagia in post COVID-19 patients.An electrophysiologic approach is useful for the diagnosis and follow-up of patients with oropharyngeal dysphagia.A single botulinum toxin type A injection is a valid treatment option to improve the swallowing function in patients with post COVID-19 dysphagia.
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