Letter to the Editor: Guillain-Barré Syndrome Needs to Be Considered as a Cause of Idiopathic Bilateral Vocal Fold Paralysis

Abstract

To the Editor: We read with interest the article by Son et al.1 about an 82-year-old woman who developed bilateral vocal fold paralysis (VFP) 3 days after the third dose of coronavirus disease 2019 (COVID-19) mRNA vaccine (BNT162b2 Pfizer–BioNTech). The patient underwent tracheostomy for dyspnea and inspiratory stridor due to bilateral VFP. After that, respiratory distress improved, but bilateral VFP still persisted after 2 months. Since there were no abnormal findings in several tests to find the cause of bilateral VFP, the authors considered it as an adverse event of COVID-19 vaccination.1 This study is an interesting topic for the association between VFP and COVID-19 vaccination. However, in this letter we would like raise under-recognized issues regarding the diagnostic approach and treatment of VFP