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An Immunohistopathologic Study to Profile the Folate Receptor Beta Macrophage and Vascular Immune Microenvironment in Giant Cell Arteritis
06:35

An Immunohistopathologic Study to Profile the Folate Receptor Beta Macrophage and Vascular Immune Microenvironment in Giant Cell Arteritis

Published on: February 8, 2019

Giant cell myocarditis. Diagnosis and treatment

L T Cooper1, C ElAmm

  • 1Division of Cardiovascular Diseases, Mayo Clinic, 200 First Street SW, 55905, Rochester, MN, USA. cooper.leslie@mayo.edu

Herz
|August 30, 2012
PubMed

Insights

Giant cell myocarditis (GCM) is a rare heart condition often presenting as severe heart failure. Early diagnosis via biopsy and immunosuppression improve outcomes, but recurrence is a concern.

Area of Science:

  • Cardiology
  • Immunology
  • Pathology

Background:

  • Giant cell myocarditis (GCM) typically manifests as acute dilated cardiomyopathy resistant to standard treatments.
  • Significant proportions of GCM patients experience ventricular tachycardia and heart block.

Purpose of the Study:

  • To review the clinical presentation, diagnosis, treatment, and outcomes of Giant Cell Myocarditis.
  • To highlight the underlying mechanisms and management challenges of GCM.

Main Methods:

  • Review of recent studies on GCM pathophysiology, clinical features, and treatment strategies.
  • Analysis of diagnostic approaches including endomyocardial biopsy.
  • Examination of outcomes data, including transplantation and recurrence rates.

Main Results:

  • Endomyocardial biopsy aids GCM diagnosis, enabling immunosuppressive therapy and mechanical support.
  • Cytokine-induced changes in desmosomal proteins may mediate GCM-related arrhythmias.
  • Inflammatory pathway regulation in GCM differs from lymphocytic myocarditis.
  • Heart transplantation is effective, but GCM recurrence occurs in 20-25% of allografts and up to 8 years in native hearts.

Conclusions:

  • Prompt diagnosis and immunosuppression are crucial for managing GCM.
  • Understanding GCM's unique inflammatory profile is key.
  • Long-term management strategies for recovered GCM patients require further investigation through multicenter studies.

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