Abstract
Limited data exist regarding myopathies with early or prominent dysphagia. A retrospective study was performed (January 2003 to August 2019) to identify myopathy patients in whom dysphagia was the initial symptom or was disproportionately severe compared with limb weakness. Thirty-two patients were identified. The median age at diagnosis was 65 y (range, 36-80 y). Inclusion body myositis (IBM) (n = 15), immune-mediated necrotizing myopathy (IMNM) (n = 5), and oculopharyngeal muscular dystrophy (n = 4), were the most common diagnoses. In 4 patients (3 IMNM and 1 nonspecific myositis) dysphagia evolved rapidly. At evaluation, 21 patients required diet alterations, 5 required feeding tubes, and 8 had aspiration pneumonia. Follow-up data were available for 20 patients (median, 24 mo). Eight patients received immunosuppressive therapies with improvement in 7, including 3 of 4 with rapidly progressive dysphagia. IBM and IMNM accounted for approximately two-thirds of patients with early or prominent dysphagia at our institution. Rapidly progressive dysphagia may predict immunotherapy responsiveness.
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