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Arrhythmogenic Inflammatory Cardiomyopathy: A Review

Brenton S Bauer1, Anthony Li1, Jason S Bradfield1

  • 1UCLA Cardiac Arrhythmia Center, David Geffen School of Medicine at UCLA Los Angeles, USA.

Arrhythmia & Electrophysiology Review
|November 13, 2018
PubMed

Insights

Arrhythmogenic inflammatory cardiomyopathy involves heart inflammation causing ventricular arrhythmias. Early identification and targeted treatments, including immunosuppressants, are crucial for managing this condition.

Area of Science:

  • Cardiology
  • Electrophysiology
  • Immunology

Background:

  • Arrhythmogenic inflammatory cardiomyopathy is a distinct clinical entity within non-ischaemic cardiomyopathy.
  • Patients present with ventricular arrhythmias and evidence of active cardiac inflammation.
  • Understanding the underlying mechanisms (scar-mediated vs. direct inflammation) is vital for treatment selection.

Purpose of the Study:

  • To define arrhythmogenic inflammatory cardiomyopathy.
  • To outline diagnostic and therapeutic strategies for these patients.
  • To highlight the importance of early identification and tailored management.

Main Methods:

  • Clinical history and physical examination.
  • Echocardiography.
  • Advanced imaging: Fluorodeoxyglucose Positron Emission Tomography-Computed Tomography (FDG PET-CT) and Cardiac Magnetic Resonance Imaging (CMR).

Main Results:

  • Active cardiac inflammation is a key feature in this subgroup of cardiomyopathy patients.
  • Combined medical therapy (neurohumeral agents and immunosuppressants) can improve ejection fraction and manage inflammation.
  • Some patients may require invasive procedures like electrophysiologic study and radiofrequency catheter ablation.

Conclusions:

  • Arrhythmogenic inflammatory cardiomyopathy requires a multi-faceted diagnostic and therapeutic approach.
  • Early detection through advanced imaging is critical.
  • Personalized treatment strategies, including immunosuppression and potentially ablation, improve outcomes.

Keywords:
Arrhythmogenic inflammatory cardiomyopathycomputed tomographyejection fractionfluorodeoxyglucoseimplantable cardioverter-defibrillatorischemic cardiomyopathynon-ischaemic cardiomyopathyventricular arrhythmiaventricular tachycardia

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