Juvenile dermatomyositis with a rare and remarkable complication: sinus bradycardia

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Neslihan Edeer Karaca1, Guzide Aksu, Betul Sozeri Yeniay

  • 1Department of Pediatrics, Faculty of Medicine, The Medical School, Ege University, Bornova, 35100 Izmir, Turkey.

Rheumatology International
|September 1, 2006
PubMed

Insights

Juvenile dermatomyositis can affect the heart in children, causing bradycardia. This case shows that treating the underlying JDM can resolve cardiac symptoms without specific heart medications.

Area of Science:

  • Pediatric Rheumatology
  • Cardiology
  • Dermatology

Background:

  • Juvenile dermatomyositis (JDM) is an autoimmune disease causing muscle weakness and skin rash.
  • Cardiac involvement is common in adult dermatomyositis but rare in JDM.
  • Cardiac complications are a significant cause of mortality in JDM.

Observation:

  • An 11-year-old boy presented with bradycardia.
  • The bradycardia was attributed to sinus node involvement secondary to JDM.
  • No specific cardiac medications were administered for the bradycardia.

Findings:

  • The patient's bradycardia resolved with JDM treatment.
  • This suggests a direct link between JDM activity and cardiac sinus node dysfunction.
  • Successful management of JDM led to the recovery of heart function.

Implications:

  • Cardiac involvement in JDM, though rare, should be considered.
  • Early diagnosis and treatment of JDM may prevent or reverse cardiac complications.
  • This case highlights the importance of monitoring cardiac function in pediatric patients with JDM.

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