Risk and course of COVID-19 in immunosuppressed patients with myasthenia gravis

BACKGROUND

Patients with myasthenia gravis (MG) are potentially prone for a severe COVID-19 course, but there are limited real-world data available on the risk associated with COVID-19 for patients with MG. Here, we investigate whether current immunosuppressive therapy (IST) influences the risk of SARS-CoV-2 infection and COVID-19 severity.

METHODS

Data from the German myasthenia gravis registry were analyzed from May 2020 until June 2021 and included patient demographics, MG disease duration, comorbidities, current IST use, COVID-19 characteristics, and outcomes. Propensity score matching was employed to match MG patients with IST to those without, and multivariable binary logistic regression models were used to determine associations between IST with (1) symptomatic SARS-CoV-2 infection and (2) severe COVID-19 course, as measured by hospitalization or death.

RESULTS

Of 1379 patients with MG, 95 (7%) patients (mean age 58 (standard deviation [SD] 18) presented with COVID-19, of which 76 (80%) received IST at time of infection. 32 patients (34%) were hospitalized due to COVID-19; a total of 11 patients (12%) died. IST was a risk factor for hospitalization or death in the group of COVID-19-affected MG patients (odds ratio [OR] 3.04, 95% confidence interval [CI] = 1.02-9.06, p = 0.046), but current IST was not associated with a higher risk for SARS-CoV-2 infection itself.

DISCUSSION

In this national MG cohort study, current IST use was a risk factor for a severe disease course of COVID-19 but not for SARS-CoV-2 infection itself. These data support the consequent implementation of effective strategies to prevent COVID-19 in this high-risk group.

TRIAL REGISTRATION INFORMATION

German clinical trial registry ( https://www.drks.de ), DRKS00024099, first patient enrolled: February 4th, 2019.

[Essen transition model for neuromuscular diseases]

BACKGROUND

Advances in healthcare systems with new therapeutic options improve the life expectancy of patients with neuromuscular diseases. With this, a shift in the phenotype of the diseases from the neuromuscular system towards other organs is more frequently observed, requiring closer interdisciplinary cooperation in caring for these young adults. Therefore, the transition to the adult caring system is nowadays a multilayered transfer with the need for complex care of these patients.

OBJECTIVE

How can the transitional process be efficiently structured to combine the therapeutic effort of each specialist discipline involved and improve the healthcare process and quality of life in young adults with neuromuscular diseases?

MATERIAL AND METHOD

The Departments of Neuropediatrics and Neurology of the University Medicine Essen established the Essen transition model for a structured transitional process. A concept of care was developed for the late onset Pompe's disease, Duchenne muscular dystrophy and juvenile myasthenia gravis representatively for neuromuscular diseases. It consists of four components: 1) In a standardized operational procedure (SOP), general processes, clinical diagnostic steps and guidance of treatment between the two departments are harmonized and specified. 2) The young adults and their relatives are seen in a joint consultation of both disciplines allowing a comprehensive handover for healthcare professionals. 3) In a quarterly meeting, transition conference representatives from the different specialized disciplines from pediatric and adult medicine get together for a case-related interdisciplinary exchange. 4) An interdepartmental transitional database was created to integrate all diagnostic results and parameters as a common information platform and data basis.

CONCLUSION

The Essen transition model aims to close a gap in the transition of patients with neuromuscular diseases and improve healthcare in these patients with their complex needs.

Essen transition model for neuromuscular diseases

Background

With the optimization of medical care structures and the rapid progress in the development of new therapeutic methods, an increase in life expectancy is observed in patients with neuromuscular diseases. This leads to an expansion of the phenotypic spectrum, whereby new or previously less relevant disease manifestations in different organ systems gain more importance. The care of adolescents and young adults with neuromuscular diseases, therefore, requires increasingly close interdisciplinary collaboration within neuromuscular centers.

Research question

How can the transition process from pediatric to adult care be structured so that the individual disciplines are efficiently integrated into the complex treatment and care process, and the patients' quality of life is improved?

Material and methods

A structured transition process was established at the University Hospital in Essen, Germany. Exemplarily, a comparable care concept was developed based on Pompe disease, Duchenne muscular dystrophy, and juvenile myasthenia gravis comprising four elements: (1) With the introduction of cross-department standard operating procedures, the logistical processes, as well as the diagnostic and therapeutic measures, are uniformly coordinated, and the transition process is bindingly defined. (2) To ensure a seamless transition, young patients are seen with their parents during joint consultations before they reach their 17th birthday. This creates an opportunity for patients to get to know the subsequent department structure and build a lasting relationship of trust. (3) A quarterly “transition board” regularly brings together the participating disciplines from pediatric and adult care systems for a case-related interdisciplinary exchange and continuous optimization of the transition process. (4) A cross-department “Transition Database”, in which medical findings and parameters are recorded, was implemented as a common information platform and database.

Conclusion

The Essen Transition Model aims to close the gap in care for young patients with neuromuscular diseases during the critical transition from pediatric to adult medicine and to create a successful continuation of treatment in adulthood.