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Medicina Interna
versão impressa ISSN 0872-671X
Resumo
BAPTISTA, Bernardo et al. Anti-HMGCR Immune-Mediated Myopathy: Literature Review Based in a Case Report. Medicina Interna [online]. 2019, vol.26, n.4, pp.45-50. ISSN 0872-671X. https://doi.org/10.24950/rspmi/Revisao/5/19/4/2019.
Statins are amongst the most prescribed drugs worldwide and they are generally safe. A rare but potentially serious adverse effect of statins’ therapy has been described - anti-3-hydroxy-3-methyl-glutaryl-coenzyme A reductase (anti-HMGCR) immune-mediated necrotizing myopathy (IMNM) - that can occur years after the drug has been started. We conducted a literature review after illustrating a typical case of anti-HMGCR IMNM. A 67-year-old female treated with simvastatin for the past 5 years presented with proximal myalgias and tetraparesis, raised creatine kinase, a myopathic pattern on electromyogram, a necrotizing myopathy on muscle biopsy and anti-HMGCR antibodies. The statin was stopped, and immunosuppressive therapy was commenced, leading to a complete remission. The distinction between anti-HMGCR IMNM and other myopathies is crucial, so that the appropriate treatment can be started promptly. Likewise, it is important that clinicians be aware of this entity.
Palavras-chave : Autoantibodies; Autoimmune Diseases; Hydroxymethylglutaryl CoA Reductases; Hydroxymethylglutaryl-CoA Reductase Inhibitors; Muscular Diseases.