Arrhythmogenic Right Ventricular Cardiomyopathy Accompanied by Chronic Myocarditis

Intern Med. 2022 Oct 15;61(20):3063-3067. doi: 10.2169/internalmedicine.8911-21. Epub 2022 Mar 26.

Abstract

Patients with arrhythmogenic right ventricular cardiomyopathy (ARVC) classically present with ventricular arrhythmias and less commonly heart failure. ARVC is an inherited cardiomyopathy and generally based on a variant of desmosomal genes. Recently, the association between myocardial inflammation and ARVC has been a matter of great concern. We encountered a patient with ARVC who had a desmoglein-2 mutation with advanced right ventricular failure accompanying a preserved left ventricular function. Concomitant right ventricular myocarditis was detected four years after the diagnosis of ARVC. ARVC and myocarditis might have a deep pathophysiological association, at least in some cases.

Keywords: arrhythmia; cardiomyopathy; desmosome; heart failure; hemodynamics.

MeSH terms

  • Arrhythmias, Cardiac / complications
  • Arrhythmogenic Right Ventricular Dysplasia* / complications
  • Arrhythmogenic Right Ventricular Dysplasia* / diagnosis
  • Arrhythmogenic Right Ventricular Dysplasia* / genetics
  • Cardiomyopathies* / complications
  • Desmogleins
  • Heart Failure* / complications
  • Humans
  • Myocarditis* / complications
  • Myocarditis* / diagnosis

Substances

  • Desmogleins