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Belhassen B, Lellouche N, Frank R. Contributions of France to the field of clinical cardiac electrophysiology and pacing. Heart Rhythm O2 2024; 5:490-514. [PMID: 39119028 PMCID: PMC11305881 DOI: 10.1016/j.hroo.2024.02.005] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 08/10/2024] Open
Affiliation(s)
- Bernard Belhassen
- Heart Institute, Hadassah Medical Center, Jerusalem, Israel
- Tel-Aviv University, Tel-Aviv, Israel
| | - Nicolas Lellouche
- Unité de Rythmologie, Service de Cardiologie, Centre Hospitalier Henri-Mondor, Université Paris-Est, Créteil, France
| | - Robert Frank
- Institut de Cardiologie, Groupe Hospitalier Pitié-Salpêtrière, Université de la Sorbonne, Paris, France
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2
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Aimo A, Milandri A, Barison A, Pezzato A, Morfino P, Vergaro G, Merlo M, Argirò A, Olivotto I, Emdin M, Finocchiaro G, Sinagra G, Elliott P, Rapezzi C. Electrocardiographic abnormalities in patients with cardiomyopathies. Heart Fail Rev 2024; 29:151-164. [PMID: 37848591 PMCID: PMC10904564 DOI: 10.1007/s10741-023-10358-7] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Accepted: 10/03/2023] [Indexed: 10/19/2023]
Abstract
Abnormalities in impulse generation and transmission are among the first signs of cardiac remodeling in cardiomyopathies. Accordingly, 12-lead electrocardiogram (ECG) of patients with cardiomyopathies may show multiple abnormalities. Some findings are suggestive of specific disorders, such as the discrepancy between QRS voltages and left ventricular (LV) mass for cardiac amyloidosis or the inverted T waves in the right precordial leads for arrhythmogenic cardiomyopathy. Other findings are less sensitive and/or specific, but may orient toward a specific diagnosis in a patient with a specific phenotype, such as an increased LV wall thickness or a dilated LV. A "cardiomyopathy-oriented" mindset to ECG reading is important to detect the possible signs of an underlying cardiomyopathy and to interpret correctly the meaning of these alterations, which differs in patients with cardiomyopathies or other conditions.
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Affiliation(s)
- Alberto Aimo
- Interdisciplinary Center for Health Sciences, Scuola Superiore Sant'Anna, Pisa, Italy.
- Cardiology Division, Fondazione Toscana Gabriele Monasterio, Pisa, Italy.
| | | | - Andrea Barison
- Interdisciplinary Center for Health Sciences, Scuola Superiore Sant'Anna, Pisa, Italy
- Cardiology Division, Fondazione Toscana Gabriele Monasterio, Pisa, Italy
| | - Andrea Pezzato
- Center for Diagnosis and Management of Cardiomyopathies, Cardiothoracovascular Department Azienda Sanitaria Universitaria Giuliano Isontina (ASUGI) and University of Trieste, Trieste, Italy
| | - Paolo Morfino
- Interdisciplinary Center for Health Sciences, Scuola Superiore Sant'Anna, Pisa, Italy
| | - Giuseppe Vergaro
- Interdisciplinary Center for Health Sciences, Scuola Superiore Sant'Anna, Pisa, Italy
- Cardiology Division, Fondazione Toscana Gabriele Monasterio, Pisa, Italy
| | - Marco Merlo
- Center for Diagnosis and Management of Cardiomyopathies, Cardiothoracovascular Department Azienda Sanitaria Universitaria Giuliano Isontina (ASUGI) and University of Trieste, Trieste, Italy
| | | | - Iacopo Olivotto
- Department of Experimental and Clinical Medicine, University of Florence, Meyer Children Hospital Florence, Florence, Italy
| | - Michele Emdin
- Interdisciplinary Center for Health Sciences, Scuola Superiore Sant'Anna, Pisa, Italy
- Cardiology Division, Fondazione Toscana Gabriele Monasterio, Pisa, Italy
| | - Gherardo Finocchiaro
- Royal Brompton and Harefield Hospital, London, UK
- St George's University of London, London, UK
| | - Gianfranco Sinagra
- Center for Diagnosis and Management of Cardiomyopathies, Cardiothoracovascular Department Azienda Sanitaria Universitaria Giuliano Isontina (ASUGI) and University of Trieste, Trieste, Italy
| | - Perry Elliott
- UCL Centre for Heart Muscle Disease and Lead of the Inherited Cardiovascular Disease Unit, Bart's Heart Centre, London, UK
- Cardiology Centre, University of Ferrara, Ferrara, Italy
| | - Claudio Rapezzi
- UCL Centre for Heart Muscle Disease and Lead of the Inherited Cardiovascular Disease Unit, Bart's Heart Centre, London, UK
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3
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Lakhani I, Zhou J, Lee S, Li KHC, Leung KSK, Hui JMH, Lee YHA, Li G, Liu T, Wong WT, Wong ICK, Mok NS, Mak CM, Zhang Q, Tse G. A Territory-Wide Study of Arrhythmogenic Right Ventricular Cardiomyopathy Patients from Hong Kong. Rev Cardiovasc Med 2022; 23:231. [PMID: 39076921 PMCID: PMC11266799 DOI: 10.31083/j.rcm2307231] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/17/2021] [Revised: 05/12/2022] [Accepted: 05/16/2022] [Indexed: 10/11/2023] Open
Abstract
Background Arrhythmogenic right ventricular cardiomyopathy/dysplasia (ARVC/D) is a hereditary disease characterized by fibrofatty infiltration of the right ventricular myocardium that predisposes affected patients to malignant ventricular arrhythmias, dual-chamber cardiac failure and sudden cardiac death (SCD). The present study aims to investigate the risk of detrimental cardiovascular events in an Asian population of ARVC/D patients, including the incidence of malignant ventricular arrhythmias, new-onset heart failure with reduced ejection fraction (HFrEF), as well as long-term mortality. Methods and Results This was a territory-wide retrospective cohort study of patients diagnosed with ARVC/D between 1997 and 2019 in Hong Kong. This study consisted of 109 ARVC/D patients (median age: 61 [46-71] years; 58% male). Of these, 51 and 24 patients developed incident VT/VF and new-onset HFrEF, respectively. Five patients underwent cardiac transplantation, and 14 died during follow-up. Multivariate Cox regression identified prolonged QRS duration as a predictor of VT/VF (p < 0.05). Female gender, prolonged QTc duration, the presence of epsilon waves and T-wave inversion (TWI) in any lead except aVR/V1 predicted new-onset HFrEF (p < 0.05). The presence of epsilon waves, in addition to the parameters of prolonged QRS duration and worsening ejection fraction predicted all-cause mortality (p < 0.05). Clinical scores were developed to predict incident VT/VF, new-onset HFrEF and all-cause mortality, and all were significantly improved by machine learning techniques. Conclusions Clinical and electrocardiographic parameters are important for assessing prognosis in ARVC/D patients and should in turn be used in tandem to aid risk stratification in the hospital setting.
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Affiliation(s)
- Ishan Lakhani
- Cardiovascular Analytics Group, Laboratory of Cardiovascular Physiology, Hong Kong, China
| | - Jiandong Zhou
- School of Data Science, City University of Hong Kong, Hong Kong, China
| | - Sharen Lee
- Cardiovascular Analytics Group, Laboratory of Cardiovascular Physiology, Hong Kong, China
| | | | | | - Jeremy Man Ho Hui
- Cardiovascular Analytics Group, Laboratory of Cardiovascular Physiology, Hong Kong, China
| | - Yan Hiu Athena Lee
- Cardiovascular Analytics Group, Laboratory of Cardiovascular Physiology, Hong Kong, China
| | - Guoliang Li
- Arrhythmia Unit, Department of Cardiovascular Medicine, First Affiliated Hospital of Xi'an Jiaotong University, 710061 Xi'an, Shaanxi, China
| | - Tong Liu
- Tianjin Key Laboratory of Ionic-Molecular Function of Cardiovascular Disease, Department of Cardiology, Tianjin Institute of Cardiology, Second Hospital of Tianjin Medical University, 300211 Tianjin, China
| | - Wing Tak Wong
- State Key Laboratory of Agrobiotechnology (CUHK), School of Life Sciences, Chinese University of Hong Kong, Hong Kong, China
| | - Ian Chi Kei Wong
- Centre for Safe Medication Practice and Research, Department of Pharmacology and Pharmacy, Li Ka Shing Faculty of Medicine, The University of Hong Kong, Hong Kong, China
- School of Pharmacy, University College London, WC1E 6BT London, UK
| | - Ngai Shing Mok
- Department of Medicine and Geriatrics, Princess Margaret Hospital, Hong Kong Hospital Authority, Hong Kong, China
| | - Chloe Miu Mak
- Department of Pathology, Hong Kong Children’s Hospital, Hospital Authority, Hong Kong, China
| | - Qingpeng Zhang
- School of Data Science, City University of Hong Kong, Hong Kong, China
| | - Gary Tse
- Tianjin Key Laboratory of Ionic-Molecular Function of Cardiovascular Disease, Department of Cardiology, Tianjin Institute of Cardiology, Second Hospital of Tianjin Medical University, 300211 Tianjin, China
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Gasperetti A, James CA, Cerrone M, Delmar M, Calkins H, Duru F. Arrhythmogenic right ventricular cardiomyopathy and sports activity: from molecular pathways in diseased hearts to new insights into the athletic heart mimicry. Eur Heart J 2021; 42:1231-1243. [PMID: 33200174 DOI: 10.1093/eurheartj/ehaa821] [Citation(s) in RCA: 23] [Impact Index Per Article: 7.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 04/05/2020] [Revised: 07/12/2020] [Accepted: 09/24/2020] [Indexed: 12/14/2022] Open
Abstract
Arrhythmogenic right ventricular cardiomyopathy (ARVC) is an inherited disease associated with a high risk of sudden cardiac death. Among other factors, physical exercise has been clearly identified as a strong determinant of phenotypic expression of the disease, arrhythmia risk, and disease progression. Because of this, current guidelines advise that individuals with ARVC should not participate in competitive or frequent high-intensity endurance exercise. Exercise-induced electrical and morphological para-physiological remodelling (the so-called 'athlete's heart') may mimic several of the classic features of ARVC. Therefore, the current International Task Force Criteria for disease diagnosis may not perform as well in athletes. Clear adjudication between the two conditions is often a real challenge, with false positives, that may lead to unnecessary treatments, and false negatives, which may leave patients unprotected, both of which are equally inacceptable. This review aims to summarize the molecular interactions caused by physical activity in inducing cardiac structural alterations, and the impact of sports on arrhythmia occurrence and other clinical consequences in patients with ARVC, and help the physicians in setting the two conditions apart.
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Affiliation(s)
- Alessio Gasperetti
- Division of Cardiology, University Heart Center Zurich, Rämistrasse 100, CH-8091 Zurich, Switzerland
| | - Cynthia A James
- Division of Cardiology, Johns Hopkins Hospital, 1800 Orleans St, Baltimore, MD 21287, USA
| | - Marina Cerrone
- Leon H Charney Division of Cardiology, New York University School of Medicine, 550 1st Avenue, New York, NY 10016, USA
| | - Mario Delmar
- Leon H Charney Division of Cardiology, New York University School of Medicine, 550 1st Avenue, New York, NY 10016, USA
| | - Hugh Calkins
- Division of Cardiology, Johns Hopkins Hospital, 1800 Orleans St, Baltimore, MD 21287, USA
| | - Firat Duru
- Division of Cardiology, University Heart Center Zurich, Rämistrasse 100, CH-8091 Zurich, Switzerland.,Center for Integrative Human Physiology, University of Zurich, Rämistrasse 71, Zurich 8006, Switzerland
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5
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Platonov PG, Svensson A. Epsilon Waves as an Extreme Form of Depolarization Delay: Focusing on the Arrhythmogenic Right Ventricular Cardiomyopathy/Dysplasia. Curr Cardiol Rev 2021; 17:17-23. [PMID: 32778035 PMCID: PMC8142367 DOI: 10.2174/1573403x16666200810105029] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 02/20/2020] [Revised: 04/08/2020] [Accepted: 04/08/2020] [Indexed: 12/13/2022] Open
Abstract
Revision of the Task Force diagnostic criteria (TFC) for arrhythmogenic right ventricular cardiomyopathy/dysplasia (ARVC/D), in 2010, has increased the sensitivity for the diagnosis of early and familial forms of the disease. Epsilon wave (EW) is a major diagnostic criterion in the context of ARVC/D, however, it remains unquantifiable and therefore, may leave room for substantial subjective interpretation, thus, explaining the existing high inter-observer variability in the assessment of EW. EW, when present, coexists with other disease characteristics, which are sufficient for ARVC/D diagnosis, making EW generally not required for ARVC/D diagnosis. Nevertheless, EW remains an important part of the electrocardiographic phenotype of ARVC/D that may be useful in planning diagnostic work-up, which needs to be recognized.
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Affiliation(s)
- Pyotr G Platonov
- Department of Cardiology, Clinical Sciences, Lund University and Arrhythmia Clinic, Skane University Hospital, Lund, Sweden
| | - Anneli Svensson
- Department of Cardiology, Linkoping University Hospital, Linkoping, Sweden
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Sharma T, Habash F, Mounsey J, Baker C, Lopez Candales A. Ebstein's Anomaly in Disguise: Follow the Cues and the Diagnosis Can Be Made. Cureus 2020; 12:e10773. [PMID: 33154844 PMCID: PMC7606194 DOI: 10.7759/cureus.10773] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/16/2020] [Accepted: 09/16/2020] [Indexed: 11/06/2022] Open
Abstract
Ebstein's anomaly is a congenital defect, which is rarely present in adults with arrhythmias and right heart failure with tricuspid regurgitation. The diagnosis is made by non-invasive cardiac imaging with transthoracic echocardiography or cardiac magnetic resonance imaging. However, mild and atypical anatomical variants require a more specific investigation to make the diagnosis and differentiate it from other pathologies which have a similar presentation, including Arrhythmogenic Right Ventricular Cardiomyopathy (ARVC). We present the case of a 66-year-old gentleman with a history of recurrent admissions due to decompensated heart failure exacerbations, now presenting with gradually worsening dyspnea. An echocardiogram was obtained, showing a thin-walled, dilated, and dysfunctional right ventricle (RV) with severe tricuspid regurgitation due to poor coaptation of the tricuspid leaflets. Although a very distinctive epsilon wave was seen on his electrocardiogram, highly suggestive of arrhythmogenic RV cardiomyopathy (ARVC), which would be enough to explain his presentation and initial echocardiogram; an off-axis plane of the tricuspid valve without any RV aneurysm or dilation of the RV outflow tract was incongruent with this diagnosis. Additional echocardiographic images were determinant to demonstrate both apical displacement and tethering of the septal tricuspid leaflet with an abnormally long anterior tricuspid leaflet, suggestive of Ebstein's anomaly. This diagnosis was confirmed with cardiac magnetic resonance imaging. Mild variants of Ebstein's anomaly, especially in the presence of confounding findings require focused imaging to ascertain the diagnosis. We review these non-traditional findings in trying to differentiate Ebstein's from ARVC.
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Affiliation(s)
- Tanya Sharma
- Internal Medicine, University of Arkansas for Medical Sciences, Little Rock, USA
| | - Fuad Habash
- Cardiology, University of Arkansas for Medical Sciences, Little Rock, USA
| | - John Mounsey
- Cardiology, University of Arkansas for Medical Sciences, Little Rock, USA
| | - Chris Baker
- Cardiac Noninvasive Laboratory, University of Arkansas for Medical Sciences, Little Rock, USA
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Mills KJ, Ferrer MS, Gonzalez MD. Prominent Epsilon Waves in a Patient With Cardiac Sarcoidosis. JACC Case Rep 2020; 2:577-582. [PMID: 34317297 PMCID: PMC8298533 DOI: 10.1016/j.jaccas.2019.12.031] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/04/2019] [Accepted: 12/12/2019] [Indexed: 11/28/2022]
Abstract
Epsilon waves are the surface manifestation of myocardial regions with delayed activation and are considered the hallmark of arrhythmogenic right ventricular cardiomyopathy. However, other conditions can also result in epsilon waves and simulate arrhythmogenic right ventricular cardiomyopathy. In this case, a patient presents with recurrent ventricular tachycardia and large epsilon waves due to cardiac sarcoidosis. (Level of Difficulty: Intermediate.)
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Affiliation(s)
- Kevin J. Mills
- Cardiovascular Disease Fellowship, Penn State College of Medicine at the Milton S. Hershey Medical Center, Hershey, Pennsylvania
| | | | - Mario D. Gonzalez
- Electrophysiology Program, Penn State University Heart and Vascular Institute, Penn State University College of Medicine at the Milton S. Hershey Medical Center, Hershey Pennsylvania
- Address for correspondence: Dr. Mario D. Gonzalez, Penn State University Heart and Vascular Institute, Penn State University College of Medicine, 500 University Drive, Room H1511, Hershey, Pennsylvania 17033.
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Pérez-Riera AR, Barbosa-Barros R, Daminello-Raimundo R, de Abreu LC, García-Niebla J, de Deus Morais MJ, Nikus K, Marcus FI. Epsilon wave: A review of historical aspects. Indian Pacing Electrophysiol J 2019; 19:63-67. [PMID: 30796961 PMCID: PMC6450822 DOI: 10.1016/j.ipej.2019.02.003] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/16/2019] [Accepted: 02/18/2019] [Indexed: 11/28/2022] Open
Abstract
The epsilon wave of the electrocardiogram (ECG) together with fragmented QRS (fQRS), the terminal conduction delay, incomplete right bundle branch block (IRBBB) and complete/advanced RBBB (CRBBB) of peripheral origin are part of a spectrum of ventricular depolarization abnormalities of arrhythmogenic cardiomyopathy(AC). Although the epsilon wave is considered a major diagnostic criterion for AC since 2010 (AC Task Force Criteria), its diagnostic value is limited because it is a sign of the later stage of the disease. It would be more appropriate to say that the epsilon wave is a “hallmark” of AC, but is of low diagnostic sensitivity. Although the epsilon wave has high specificity for AC, it can be present in other pathological conditions. In this update we will cover the nomenclature, association with disease states and electrocardiographic aspects of the epsilon wave.
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Affiliation(s)
- Andrés Ricardo Pérez-Riera
- Laboratório de Pesquisa e Escrita Científica da Faculdade de Medicina do ABC, Santo André, São Paulo, Brazil.
| | - Raimundo Barbosa-Barros
- Coronary Center of the Messejana Hospital Dr. Carlos Alberto Studart Gomes, Fortaleza, Ceará, Brazil
| | - Rodrigo Daminello-Raimundo
- Laboratório de Pesquisa e Escrita Científica da Faculdade de Medicina do ABC, Santo André, São Paulo, Brazil
| | - Luiz Carlos de Abreu
- Laboratório de Pesquisa e Escrita Científica da Faculdade de Medicina do ABC, Santo André, São Paulo, Brazil
| | - Javier García-Niebla
- Servicios Sanitarios del Área de Salud de El Hierro, Valle del Golfo Health Center, Islas Canarias, Spain
| | - Mauro José de Deus Morais
- Laboratório de Pesquisa e Escrita Científica da Faculdade de Medicina do ABC, Santo André, São Paulo, Brazil; Centro de Ciências da Saúde e Desporto, Universidade Federal do Acre, Rio Branco, Acre, Brazil
| | - Kjell Nikus
- Heart Center, Tampere University Hospital and Faculty of Medicine and Life Sciences, University of Tampere, Finland
| | - Frank I Marcus
- Sarver Heart Center, The University of Arizona Health Sciences Hospital, Tucson, AZ, USA
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Elias Neto J, Tonet J, Frank R, Fontaine G. Arrhythmogenic Right Ventricular Cardiomyopathy/Dysplasia (ARVC/D) - What We Have Learned after 40 Years of the Diagnosis of This Clinical Entity. Arq Bras Cardiol 2019; 112:91-103. [PMID: 30673021 PMCID: PMC6317628 DOI: 10.5935/abc.20180266] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/14/2018] [Accepted: 09/12/2018] [Indexed: 11/22/2022] Open
Abstract
Arrhythmogenic right ventricular cardiomyopathy/dysplasia (ARVC/D) was initially
recognized as a clinical entity by Fontaine and Marcus, who evaluated a group of
patients with ventricular tachyarrhythmia from a structurally impaired right
ventricle (RV). Since then, there have been significant advances in the
understanding of the pathophysiology, manifestation and clinical progression,
and prognosis of the pathology. The identification of genetic mutations
impairing cardiac desmosomes led to the inclusion of this entity in the
classification of cardiomyopathies. Classically, ARVC/D is an inherited disease
characterized by ventricular arrhythmias, right and / or left ventricular
dysfunction; and fibro-fatty substitution of cardiomyocytes; its identification
can often be challenging, due to heterogeneous clinical presentation, highly
variable intra- and inter-family expressiveness, and incomplete penetrance. In the absence of a gold standard that allows the diagnosis of ARVC/D, several
diagnostic categories were combined and recently reviewed for a higher
diagnostic sensitivity, without compromising the specificity. The finding that
electrical abnormalities, particularly ventricular arrhythmias, usually precede
structural abnormalities is extremely important for risk stratification in
positive genetic members. Among the complementary exams, cardiac magnetic
resonance imaging (CMR) allows the early diagnosis of left ventricular
impairment, even before morpho-functional abnormalities. Risk stratification
remains a major clinical challenge, and antiarrhythmic drugs, catheter ablation
and implantable cardioverter defibrillator are the currently available
therapeutic tools. The disqualification of the sport prevents cases of sudden
death because the effort can trigger not only the electrical instability, but
also the onset and progression of the disease.
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Affiliation(s)
- Jorge Elias Neto
- Vitória Apart Hospital - Serviço de Eletrofisiologia, Serra, ES - Brazil
| | - Joelci Tonet
- 'Unité de Rythmologie de l'Institut de Cardiologie de l'Hôpital Pitié-Salpêtrière, Paris - France
| | - Robert Frank
- 'Unité de Rythmologie de l'Institut de Cardiologie de l'Hôpital Pitié-Salpêtrière, Paris - France
| | - Guy Fontaine
- 'Unité de Rythmologie de l'Institut de Cardiologie de l'Hôpital Pitié-Salpêtrière, Paris - France
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Li GL, Saguner AM. Updated definition of epsilon waves. Pacing Clin Electrophysiol 2018; 41:1271-1272. [DOI: 10.1111/pace.13454] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 07/09/2018] [Accepted: 07/11/2018] [Indexed: 11/27/2022]
Affiliation(s)
- Guo-Liang Li
- Arrhythmia Unit, Department of Cardiovascular Medicine; First Affiliated Hospital of Xi'an Jiaotong University; Xi'an China
- Cardiology Institute, Rhythmology Unit; Hôpital Universitaire La Pitié-Salpêtrière; Paris France
| | - Ardan M. Saguner
- Department of Cardiology; University Heart Center Zurich; Zurich Switzerland
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Li GL, Saguner AM, Fontaine GH, Frank R. Epsilon waves: Milestones in the discovery and progress. Ann Noninvasive Electrocardiol 2018; 23:e12571. [PMID: 29978588 DOI: 10.1111/anec.12571] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 12/29/2017] [Revised: 04/30/2018] [Accepted: 05/07/2018] [Indexed: 01/23/2023] Open
Abstract
The Epsilon wave was first identified in 1977. Four decades of progress help people to better understand its pathological electrogenesis and diagnostic value. Currently, the Epsilon wave is on the list of the 2010 Task Force recommendations for the diagnosis of arrhythmogenic right ventricular dysplasia (ARVD). In this review, we provide the history of the first recording of the Epsilon wave in coronary artery disease and Uhl's anomaly, subsequently leading to the signal averaging technique to record late potentials. Based on our experience, we discuss some existing controversies. When we look back at the decades of progress of the Epsilon wave, we conclude that the Epsilon wave is only the tip of the iceberg of ECG abnormalities in ARVD.
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Affiliation(s)
- Guo-Liang Li
- Rhythmology Unit, Cardiology Institute, Pitie Salpetriere University Hospital, Paris, France.,Arrhythmia Unit, Department of Cardiovascular Medicine, First Affiliated Hospital of Xi'an Jiaotong University, Xi'an, Shaanxi, China
| | - Ardan M Saguner
- Department of Cardiology, University Heart Center Zurich, Zurich, Switzerland
| | - Guy Hugues Fontaine
- Rhythmology Unit, Cardiology Institute, Pitie Salpetriere University Hospital, Paris, France
| | - Robert Frank
- Rhythmology Unit, Cardiology Institute, Pitie Salpetriere University Hospital, Paris, France
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