Is Myasthenia Gravis a Real Complication of the Covid-19 Vaccine? a Case Report-Based Systematic Review Publisher



Mirmosayyeb O^{1, 2} ; Moases Ghaffary E² ; Mazdak M² ; Bagheri Z² ; Bagherieh S² ; Shaygannejad V^{1, 2} Show Affiliations
Source: Canadian Journal of Infectious Diseases and Medical Microbiology Published:2022

Abstract

Background. Myasthenia gravis (MG) is a neuromuscular, autoimmune disease that causes weakness by impairing neuromuscular transmission. According to reports, vaccines can lead to autoimmunity in different ways, and COVID-19 vaccines are suggested to trigger MG. We conducted this systematic review to assess MG patients after the COVID-19 vaccination. Methods. We collected 231 studies from four databases from inception to 26 March 2022. Results. 4 case studies were selected from 231 research studies, and data were extracted based on inclusion criteria. In all cases, MG was reported following COVID-19 vaccination. Symptoms such as muscle weakness, numbness, and ptosis were common. The MG was confirmed through RNST, MRC, NCS, and AchR-binding antibody titer tests. Conclusion. Although all cases of MG were diagnosed following appropriate tests, the sample size was small; therefore, further investigation is required to demonstrate the possible association between MG and COVID-19 vaccination. © 2022 Omid Mirmosayyeb et al.