Muscle & nerve · 2023
COVID-19 infection in myasthenia gravis: Clinical course and outcomes.
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Thomas Eleanor V, Bou Gabriela, Barton Shawn, Hutto Spencer, Garcia-Santibanez Rocio
Аннотация
INTRODUCTION/AIMS: Myasthenia gravis (MG) patients have been predicted to have high rates of coronavirus disease-2019 (COVID-19) complications due to frequent involvement of respiratory muscles in MG and frequent use of immunosuppressive therapies. We investigated outcomes of MG patients infected with SARS-CoV-2 to identify risk factors for exacerbation and severe disease.
METHODS: This was a retrospective analysis of 39 MG patients with SARS-CoV-2 infection from January March 1, 2020 to October 25, 2021 at Emory University. Patients' records were queried for demographic data, MG history, and COVID-19 treatments and hospitalizations.
RESULTS: At the time of infection, 8 of 39 were vaccinated, 30 of 39 unvaccinated, and 1 unknown. Average age was 52.6 years. Twenty-seven patients were receiving immunomodulatory treatments at the time of infection. Thirty-five of 39 were symptomatic, 21 were hospitalized, and 7 required ventilations. MG exacerbations occurred in 5 and were treated with therapeutic plasma exchange (n = 1), intravenous immunoglobulin (IVIg) (n = 1), and prednisone taper (n = 5). Four hospitalized patients died from COVID-related lung injuries. No deaths were attributed to MG exacerbation; however, one patient receiving IVIg for MG exacerbation had a pulmonary embolism. There were no deaths in fully vaccinated patients, and only one vaccinated patient was admitted to the intensive care unit.
DISCUSSION: High rates of COVID-19 complications and death were observed in this cohort of MG patients. Some patients with MG and COVID-19 also had an exacerbation during infection. Further studies are needed to determine whether MG patients are at higher risk for complications than the rest of the population.
METHODS: This was a retrospective analysis of 39 MG patients with SARS-CoV-2 infection from January March 1, 2020 to October 25, 2021 at Emory University. Patients' records were queried for demographic data, MG history, and COVID-19 treatments and hospitalizations.
RESULTS: At the time of infection, 8 of 39 were vaccinated, 30 of 39 unvaccinated, and 1 unknown. Average age was 52.6 years. Twenty-seven patients were receiving immunomodulatory treatments at the time of infection. Thirty-five of 39 were symptomatic, 21 were hospitalized, and 7 required ventilations. MG exacerbations occurred in 5 and were treated with therapeutic plasma exchange (n = 1), intravenous immunoglobulin (IVIg) (n = 1), and prednisone taper (n = 5). Four hospitalized patients died from COVID-related lung injuries. No deaths were attributed to MG exacerbation; however, one patient receiving IVIg for MG exacerbation had a pulmonary embolism. There were no deaths in fully vaccinated patients, and only one vaccinated patient was admitted to the intensive care unit.
DISCUSSION: High rates of COVID-19 complications and death were observed in this cohort of MG patients. Some patients with MG and COVID-19 also had an exacerbation during infection. Further studies are needed to determine whether MG patients are at higher risk for complications than the rest of the population.