Autoimmune Myocarditis and Arrhythmogenic Mitral Valve Prolapse: An Unexpected Overlap Syndrome
Background: both myocarditis and mitral valve prolapse (MVP) are known uncommon causes of ventricular arrhythmias in young patients. Aim: to report the first clinical case of endomyocardial biopsy (EMB)-proven autoimmune myocarditis and associated arrhythmogenic MVP in a patient with recurrent ventr...
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2021
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oai:doaj.org-article:f660035e6a734e55896f334173eff0b32021-11-25T18:00:23ZAutoimmune Myocarditis and Arrhythmogenic Mitral Valve Prolapse: An Unexpected Overlap Syndrome10.3390/jcdd81101512308-3425https://doaj.org/article/f660035e6a734e55896f334173eff0b32021-11-01T00:00:00Zhttps://www.mdpi.com/2308-3425/8/11/151https://doaj.org/toc/2308-3425Background: both myocarditis and mitral valve prolapse (MVP) are known uncommon causes of ventricular arrhythmias in young patients. Aim: to report the first clinical case of endomyocardial biopsy (EMB)-proven autoimmune myocarditis and associated arrhythmogenic MVP in a patient with recurrent ventricular fibrillation (VF) episodes. Methods: myocarditis was diagnosed both by cardiac magnetic resonance (CMR) and EMB. Arrhythmogenic MVP was documented by transthoracic echocardiogram, CMR, and electroanatomical mapping of the trigger premature ventricular contractions (PVCs). Results: a 22-year-old woman underwent immunosuppressive therapy after EMB-proven diagnosis of autoimmune myocarditis with VF onset and early implantable cardioverter defibrillator (ICD) placement. Three years later, she experienced two VF recurrences and persistent PVCs, despite no signs of myocarditis recurrence. An echocardiogram revealed bileaflet MVP with high arrhythmic risk features. Finally, electroanatomical mapping and ablation of the trigger PVC were successfully performed. Conclusion: in patients with recurrent VF episodes despite evidence-based medical treatment for myocarditis, MVP should be considered as an alternative arrhythmogenic substrate, and warrants early ICD implant and PVC-targeted therapy.Andrea VillatoreSimone SalaStefano StellaDavide VignaleElena BusnardoAntonio EspositoCristina BassoPaolo Della BellaPatrizio MazzoneGiovanni PerettoMDPI AGarticlemyocarditisventricular arrhythmiasmitral valve prolapsearrhythmogenicsudden cardiac deathendomyocardial biopsyDiseases of the circulatory (Cardiovascular) systemRC666-701ENJournal of Cardiovascular Development and Disease, Vol 8, Iss 151, p 151 (2021) |
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myocarditis ventricular arrhythmias mitral valve prolapse arrhythmogenic sudden cardiac death endomyocardial biopsy Diseases of the circulatory (Cardiovascular) system RC666-701 |
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myocarditis ventricular arrhythmias mitral valve prolapse arrhythmogenic sudden cardiac death endomyocardial biopsy Diseases of the circulatory (Cardiovascular) system RC666-701 Andrea Villatore Simone Sala Stefano Stella Davide Vignale Elena Busnardo Antonio Esposito Cristina Basso Paolo Della Bella Patrizio Mazzone Giovanni Peretto Autoimmune Myocarditis and Arrhythmogenic Mitral Valve Prolapse: An Unexpected Overlap Syndrome |
description |
Background: both myocarditis and mitral valve prolapse (MVP) are known uncommon causes of ventricular arrhythmias in young patients. Aim: to report the first clinical case of endomyocardial biopsy (EMB)-proven autoimmune myocarditis and associated arrhythmogenic MVP in a patient with recurrent ventricular fibrillation (VF) episodes. Methods: myocarditis was diagnosed both by cardiac magnetic resonance (CMR) and EMB. Arrhythmogenic MVP was documented by transthoracic echocardiogram, CMR, and electroanatomical mapping of the trigger premature ventricular contractions (PVCs). Results: a 22-year-old woman underwent immunosuppressive therapy after EMB-proven diagnosis of autoimmune myocarditis with VF onset and early implantable cardioverter defibrillator (ICD) placement. Three years later, she experienced two VF recurrences and persistent PVCs, despite no signs of myocarditis recurrence. An echocardiogram revealed bileaflet MVP with high arrhythmic risk features. Finally, electroanatomical mapping and ablation of the trigger PVC were successfully performed. Conclusion: in patients with recurrent VF episodes despite evidence-based medical treatment for myocarditis, MVP should be considered as an alternative arrhythmogenic substrate, and warrants early ICD implant and PVC-targeted therapy. |
format |
article |
author |
Andrea Villatore Simone Sala Stefano Stella Davide Vignale Elena Busnardo Antonio Esposito Cristina Basso Paolo Della Bella Patrizio Mazzone Giovanni Peretto |
author_facet |
Andrea Villatore Simone Sala Stefano Stella Davide Vignale Elena Busnardo Antonio Esposito Cristina Basso Paolo Della Bella Patrizio Mazzone Giovanni Peretto |
author_sort |
Andrea Villatore |
title |
Autoimmune Myocarditis and Arrhythmogenic Mitral Valve Prolapse: An Unexpected Overlap Syndrome |
title_short |
Autoimmune Myocarditis and Arrhythmogenic Mitral Valve Prolapse: An Unexpected Overlap Syndrome |
title_full |
Autoimmune Myocarditis and Arrhythmogenic Mitral Valve Prolapse: An Unexpected Overlap Syndrome |
title_fullStr |
Autoimmune Myocarditis and Arrhythmogenic Mitral Valve Prolapse: An Unexpected Overlap Syndrome |
title_full_unstemmed |
Autoimmune Myocarditis and Arrhythmogenic Mitral Valve Prolapse: An Unexpected Overlap Syndrome |
title_sort |
autoimmune myocarditis and arrhythmogenic mitral valve prolapse: an unexpected overlap syndrome |
publisher |
MDPI AG |
publishDate |
2021 |
url |
https://doaj.org/article/f660035e6a734e55896f334173eff0b3 |
work_keys_str_mv |
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