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Related Experiment Videos

Fulminant myocarditis in polymyositis.

K Yukiiri1, K Mizushige, T Ueda

  • 1Second Department of Internal Medicine, Kagawa Medical University, Kita, Japan.

Japanese Circulation Journal
|November 22, 2001
PubMed
Summary

Polymyositis can cause severe heart inflammation (myocarditis), even in mild cases. Prompt immunosuppressive therapy aided cardiac recovery, but complications led to a fatal outcome.

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Area of Science:

  • Cardiology
  • Neurology
  • Rheumatology

Background:

  • Cardiac involvement in polymyositis is typically asymptomatic and mild.
  • Fulminant myocarditis is a rare but severe manifestation of polymyositis.

Observation:

  • A female patient presented with muscle weakness and cardiogenic shock.
  • Diagnosis revealed polymyositis and fulminant myocarditis.

Findings:

  • Aggressive immunosuppressive therapy (methylprednisolone) and mechanical circulatory support improved cardiac function.
  • Despite initial recovery, the patient experienced a massive cerebral embolism, leading to death.
  • Postmortem examination confirmed muscle necrosis and mononuclear cell infiltration in the myocardium and skeletal muscle.

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Implications:

  • This case highlights the potential for severe cardiac dysfunction in polymyositis.
  • Immunosuppressive therapy may be effective for fulminant myocarditis associated with polymyositis.
  • Cerebral embolism is a critical complication to consider in these patients.