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Related Experiment Videos

Myocardial dysfunction in polymyositis.

Mario Sénéchal1, Martin Crête, Christian Couture

  • 1Quebec Heart Institute, Laval Hospital Research Center Ste-Foy, Quebec. duboissenechal@videotron.ca

The Canadian Journal of Cardiology
|September 8, 2006
PubMed
Summary

Polymyositis can cause severe heart problems like ventricular arrhythmias and systolic dysfunction. Early and ongoing cardiac evaluation is crucial for patients with polymyositis, even during remission.

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Area of Science:

  • Cardiology
  • Neurology
  • Immunology

Background:

  • Polymyositis, an idiopathic inflammatory myopathy, can affect cardiac function.
  • Symptomatic cardiac dysfunction in polymyositis is uncommon but potentially severe.

Observation:

  • A 48-year-old woman with polymyositis developed life-threatening ventricular arrhythmia.
  • A 56-year-old man with relapsing polymyositis experienced severe systolic heart dysfunction.

Findings:

  • These cases highlight the risk of significant cardiac events in polymyositis patients.
  • Cardiac involvement can manifest as arrhythmias and impaired cardiac contractility.

Implications:

  • Routine cardiac assessment is vital upon polymyositis diagnosis.

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  • Periodic cardiac function re-evaluation is necessary, irrespective of clinical remission or normalized creatine phosphokinase levels.