The aim of this study is to investigate whether minimally invasive thymectomy achieves comparable efficacy and safety results compared to open thymectomy in patients with myasthenia gravis. The planned investigation is a multicenter observational study based on retrospective (present patient data) and prospective data (questionable outcome data). Primary hypothesis: Minimally invasive thymectomy is not inferior to open thymectomy in terms of efficacy and safety (non-inferiority study).
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Mean daily prednisone dose
Timeframe: three years after thymectomy