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Case of Anti–Single Recognition Particle–Mediated Necrotizing Myopathy After Influenza Vaccination
We reported a 28-year-old healthy woman presented with subacute onset ascending muscle weakness 2 weeks after an annual influenza vaccination. Cerebral Spinal Fluid study showed normal cell counts with elevated protein and nerve conduction study showed reduced diffuse compound muscle action potential amplitudes suggesting a diagnosis of Guillain–Barré syndrome. Despite treatment using intravenous immunoglobulin, her condition continued to get worse with new bulbar and respiratory muscle weakness. Eventually, the diagnosis of anti–single recognition particle–mediated necrotizing myopathy was made based on elevated cr...
Source: Journal of Clinical Neuromuscular Disease - May 26, 2018 Category: Neurology Tags: Case Review Source Type: research

Can Quantitative Muscle Strength and Functional Motor Ability Differentiate the Influence of Age and Corticosteroids in Ambulatory Boys with Duchenne Muscular Dystrophy?
Conclusion The baseline data analysis of this natural history study indicates that the outcomes measures utilized in this study were sensitive to the age related differences in strength and motor function that are characteristic of disease progression boys with DMD; however treatment effects were less likely to be identified. These findings reflect the difficulty inherent in obtaining the statistical power needed to substantiate intervention efficacy in the small, heterogeneous samples sizes that are characteristic of DMD clinical studies. Isokinetic dynamometry revealed variability in the muscles affected, which has been ...
Source: PLOS Currents Muscular Dystrophy - July 8, 2016 Category: Neurology Authors: cbuckon Source Type: research