Journal
MUSCLE & NERVE
Volume 64, Issue 1, Pages 90-94Publisher
WILEY
DOI: 10.1002/mus.27247
Keywords
CONUT score; dysphagia; hypoalbuminemia; myasthenia gravis; prognosis
Categories
Funding
- Osaka Medical College
- Myasthenia Gravis Foundation of America
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The study found that dysphagia and hypoalbuminemia at baseline in patients with myasthenia gravis are associated with outcomes and predictive risk factors for poorer prognosis.
Introduction/Aims In myasthenia gravis (MG) therapy, achieving Myasthenia Gravis Foundation of America minimal manifestation (MM) or better status is proposed as a desirable target. However, this level of control is often not achieved and clinical factors affecting prognosis remain unclear. Methods Participants were 104 consecutive patients with MG who visited Osaka Medical College Hospital. We retrospectively assessed the association of clinical and laboratory features at baseline with prognosis. Eighty patients who achieved MM or better status were classified as the good outcome group and the remaining 24 patients were classified as the poor outcome group. Results The rate of dysphagia at baseline was significantly higher in the poor outcome group than in the good outcome group (P = .002). The levels of serum total protein and albumin at baseline were both significantly lower in the poor outcome group than in the good outcome group (P = .036 and P = .014, respectively). In addition, Controlling Nutritional Status scores at baseline were significantly higher in the poor outcome group than in the good outcome group (P = .043). Multivariate analysis using a Cox proportional hazards model showed that dysphagia (hazard ratio [HR], 6.92; 95% confidence interval [CI], 1.49-40.31) and hypoalbuminemia (HR, 2.57; 95% CI, 1.04-6.57) at baseline were risk factors that predicted prognosis. Discussion These findings suggest that dysphagia and hypoalbuminemia at baseline are associated with outcomes and are predictive risk factors for poorer outcomes in patients with MG.
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