Clinical features and outcomes of patients with muscle-specific kinase antibody-positive myasthenia gravis in Japan

Refractory (planetary science) Prednisolone
DOI: 10.1016/j.jneuroim.2023.578241 Publication Date: 2023-11-07T03:57:36Z
ABSTRACT
This study included 51 patients with muscle-specific kinase antibody-positive myasthenia gravis (MuSK-MG) from a Japanese multicenter survey to examine clinical features and outcomes. Median onset age was 37 years and female predominance was observed. All patients developed generalized symptoms and almost all (50/51) patients had bulbar symptoms. About half of the patients met the criteria for refractory MG. The refractory group had a lower age of onset, higher severity scores, and higher maximum daily doses of oral prednisolone compared to the nonrefractory group. The outcomes for MuSK-MG patients in Japan are not favorable, indicating the need for more aggressive treatment.
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