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A Case of Lymphocytic Myocarditis With Complete Heart Block Requiring Permanent Pacemaker Implantation

Hirmand Nouraei1, Avi Ostry2, Jonathon A Leipsic3

  • 1Department of Internal Medicine, University of British Columbia, Vancouver, British Columbia, Canada.

The Canadian Journal of Cardiology
|June 20, 2021
PubMed

Insights

Lymphocytic myocarditis, a rare heart condition, can lead to complete heart block. This case highlights a young man with myocarditis who developed persistent heart block requiring a pacemaker.

Area of Science:

  • Cardiology
  • Pathology
  • Immunology

Background:

  • Lymphocytic myocarditis (LM) is an inflammatory cardiac condition.
  • Complete heart block (CHB) is a rare but serious complication of LM.

Observation:

  • A young male patient presented with symptoms of cardiogenic shock.
  • Biopsy confirmed the diagnosis of lymphocytic myocarditis.

Findings:

  • The patient developed persistent complete heart block.
  • The CHB did not resolve, necessitating permanent pacemaker implantation.

Implications:

  • This case underscores the potential for severe cardiac sequelae in LM.
  • Highlights the importance of monitoring for conduction abnormalities in LM patients.

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