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Crea F. The complex interaction between cancer, ischaemic heart disease, and heart failure, and a focus on arrhythmias including risk stratification in Brugada syndrome and leadless pacing. Eur Heart J 2024; 45:1183-1187. [PMID: 38582530 DOI: 10.1093/eurheartj/ehae197] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [MESH Headings] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 04/08/2024] Open
Affiliation(s)
- Filippo Crea
- Centre of Excellence of Cardiovascular Sciences, Gemelli Isola Hospital, Rome, Italy
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Bergonti M, Sacher F, Arbelo E, Crotti L, Sabbag A, Casella M, Saenen J, Rossi A, Monaco C, Pannone L, Compagnucci P, Russo V, Heller E, Santoro A, Berne P, Bisignani A, Baldi E, Van Leuven O, Migliore F, Marcon L, Dagradi F, Sfondrini I, Landra F, Comune A, Cespón-Fernández M, Nesti M, Santoro F, Magnocavallo M, Vicentini A, Conti S, Ribatti V, Brugada P, de Asmundis C, Brugada J, Tondo C, Schwartz PJ, Haissaguerre M, Auricchio A, Conte G. Implantable loop recorders in patients with Brugada syndrome: the BruLoop study. Eur Heart J 2024; 45:1255-1265. [PMID: 38445836 PMCID: PMC10998731 DOI: 10.1093/eurheartj/ehae133] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 08/21/2023] [Revised: 01/09/2024] [Accepted: 02/19/2024] [Indexed: 03/07/2024] Open
Abstract
BACKGROUND AND AIMS Available data on continuous rhythm monitoring by implantable loop recorders (ILRs) in patients with Brugada syndrome (BrS) are scarce. The aim of this multi-centre study was to evaluate the diagnostic yield and clinical implication of a continuous rhythm monitoring strategy by ILRs in a large cohort of BrS patients and to assess the precise arrhythmic cause of syncopal episodes. METHODS A total of 370 patients with BrS and ILRs (mean age 43.5 ± 15.9, 33.8% female, 74.1% symptomatic) from 18 international centers were included. Patients were followed with continuous rhythm monitoring for a median follow-up of 3 years. RESULTS During follow-up, an arrhythmic event was recorded in 30.7% of symptomatic patients [18.6% atrial arrhythmias (AAs), 10.2% bradyarrhythmias (BAs), and 7.3% ventricular arrhythmias (VAs)]. In patients with recurrent syncope, the aetiology was arrhythmic in 22.4% (59.3% BAs, 25.0% VAs, and 15.6% AAs). The ILR led to drug therapy initiation in 11.4%, ablation procedure in 10.9%, implantation of a pacemaker in 2.5%, and a cardioverter-defibrillator in 8%. At multivariate analysis, the presence of symptoms [hazard ratio (HR) 2.5, P = .001] and age >50 years (HR 1.7, P = .016) were independent predictors of arrhythmic events, while inducibility of ventricular fibrillation at the electrophysiological study (HR 9.0, P < .001) was a predictor of VAs. CONCLUSIONS ILR detects arrhythmic events in nearly 30% of symptomatic BrS patients, leading to appropriate therapy in 70% of them. The most commonly detected arrhythmias are AAs and BAs, while VAs are detected only in 7% of cases. Symptom status can be used to guide ILR implantation.
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Affiliation(s)
- Marco Bergonti
- Cardiocentro Ticino Institute, Ente Ospedaliero Cantonale, Via Tesserete 48, CH-6900 Lugano, Switzerland
| | - Frederic Sacher
- Hôpital Cardiologique du Haut-Lévêque, CHU Bordeaux, L’Institut de Rythmologie et modélisation Cardiaque (LIRYC), Université Bordeaux, Bordeaux, France
| | - Elena Arbelo
- Arrhythmia Section, Cardiology Department, Hospital Clinic, Universitat de Barcelona, Barcelona, Spain
| | - Lia Crotti
- Center for Cardiac Arrhythmias of Genetic Origin and Laboratory of Cardiovascular Genetics, Istituto Auxologico Italiano, IRCCS, Milan, Italy
- Departement of Medicine and Surgery, University Milano Bicocca, Milan, Italy
| | - Avi Sabbag
- The Davidai Center for Rhythm Disturbances and Pacing, Chaim Sheba Medical Center, Tel Hashomer and the faculty of medicine, Tel-Aviv University, Tel-Aviv, Israel
| | - Michela Casella
- Cardiology and Arrhythmology Clinic, University Hospital ‘Ospedali Riuniti’, Ancona, Italy
- Department of Clinical, Special and Dental Sciences, Marche Polytechnic University, Ancona, Italy
| | - Johan Saenen
- Department of Cardiology, University Hospital Antwerp, Edegem, Belgium
| | - Andrea Rossi
- Arrhythmology Division, Fondazione Gabriele Monasterio CNR-Regione Toscana, via Giuseppe Moruzzi, Pisa, Italy
| | - Cinzia Monaco
- Hôpital Cardiologique du Haut-Lévêque, CHU Bordeaux, L’Institut de Rythmologie et modélisation Cardiaque (LIRYC), Université Bordeaux, Bordeaux, France
| | - Luigi Pannone
- Heart Rhythm Management Centre, Postgraduate Program in Cardiac Electrophysiology and Pacing, Universitair Ziekenhuis Brussel—Vrije Universiteit Brussel, European Reference Networks Guard-Heart, Brussels, Belgium
| | - Paolo Compagnucci
- Cardiology and Arrhythmology Clinic, University Hospital ‘Ospedali Riuniti’, Ancona, Italy
| | - Vincenzo Russo
- Cardiology Unit, Department of Translational Medical Sciences, University of Campania ‘Luigi Vanvitelli’, Monaldi Hospital, Naples, Italy
| | - Eyal Heller
- The Davidai Center for Rhythm Disturbances and Pacing, Chaim Sheba Medical Center, Tel Hashomer and the faculty of medicine, Tel-Aviv University, Tel-Aviv, Israel
| | - Amato Santoro
- Division of Cardiology, Cardio Thoracic and Vascular Department, Azienda Ospedaliera Universitaria Senese, Siena, Italy
| | - Paola Berne
- Department of Cardiology, Ospedale Santissima Annunziata, University of Sassari, Sassari, Italy
| | - Antonio Bisignani
- Institute of Cardiology, Catholic University of the Sacred Heart, Roma, Italy
| | - Enrico Baldi
- Arrhythmia and Electrophysiology, Division of Cardiology, Fondazione IRCCS Policlinico San Matteo, Pavia, Italy
| | | | - Federico Migliore
- Department of Cardiac, Thoracic and Vascular Sciences and Public Health, University of Padova, Padua, Italy
| | - Lorenzo Marcon
- Department of Clinical Electrophysiology & Cardiac Pacing, Centro Cardiologico Monzino IRCCS, Milan, Italy
- Department of Biomedical, Surgery and Dentist Sciences, University of Milan, Milan, Italy
| | - Federica Dagradi
- Center for Cardiac Arrhythmias of Genetic Origin and Laboratory of Cardiovascular Genetics, Istituto Auxologico Italiano, IRCCS, Milan, Italy
| | - Irene Sfondrini
- Cardiocentro Ticino Institute, Ente Ospedaliero Cantonale, Via Tesserete 48, CH-6900 Lugano, Switzerland
| | - Federico Landra
- Arrhythmology Division, Fondazione Gabriele Monasterio CNR-Regione Toscana, via Giuseppe Moruzzi, Pisa, Italy
- Division of Cardiology, Cardio Thoracic and Vascular Department, Azienda Ospedaliera Universitaria Senese, Siena, Italy
| | - Angelo Comune
- Cardiology Unit, Department of Translational Medical Sciences, University of Campania ‘Luigi Vanvitelli’, Monaldi Hospital, Naples, Italy
| | - María Cespón-Fernández
- Heart Rhythm Management Centre, Postgraduate Program in Cardiac Electrophysiology and Pacing, Universitair Ziekenhuis Brussel—Vrije Universiteit Brussel, European Reference Networks Guard-Heart, Brussels, Belgium
| | - Martina Nesti
- Division of Cardiology, Cardio Thoracic and Vascular Department, Azienda Ospedaliera Universitaria Senese, Siena, Italy
| | - Francesco Santoro
- Cardiothoracic Department, Cardiology Unit, Policlinico Riuniti, Foggia, Italy
| | | | - Alessandro Vicentini
- Arrhythmia and Electrophysiology, Division of Cardiology, Fondazione IRCCS Policlinico San Matteo, Pavia, Italy
| | - Sergio Conti
- Department of Cardiac Electrophysiology, ARNAS Ospedali Civico Di Cristina Benfratelli, Palermo, Italy
| | - Valentina Ribatti
- Department of Clinical Electrophysiology & Cardiac Pacing, Centro Cardiologico Monzino IRCCS, Milan, Italy
- Department of Biomedical, Surgery and Dentist Sciences, University of Milan, Milan, Italy
| | - Pedro Brugada
- Heart Rhythm Management Centre, Postgraduate Program in Cardiac Electrophysiology and Pacing, Universitair Ziekenhuis Brussel—Vrije Universiteit Brussel, European Reference Networks Guard-Heart, Brussels, Belgium
| | - Carlo de Asmundis
- Heart Rhythm Management Centre, Postgraduate Program in Cardiac Electrophysiology and Pacing, Universitair Ziekenhuis Brussel—Vrije Universiteit Brussel, European Reference Networks Guard-Heart, Brussels, Belgium
| | - Josep Brugada
- Arrhythmia Section, Cardiology Department, Hospital Clinic, Universitat de Barcelona, Barcelona, Spain
| | - Claudio Tondo
- Department of Clinical Electrophysiology & Cardiac Pacing, Centro Cardiologico Monzino IRCCS, Milan, Italy
- Department of Biomedical, Surgery and Dentist Sciences, University of Milan, Milan, Italy
| | - Peter J Schwartz
- Center for Cardiac Arrhythmias of Genetic Origin and Laboratory of Cardiovascular Genetics, Istituto Auxologico Italiano, IRCCS, Milan, Italy
| | - Michel Haissaguerre
- Hôpital Cardiologique du Haut-Lévêque, CHU Bordeaux, L’Institut de Rythmologie et modélisation Cardiaque (LIRYC), Université Bordeaux, Bordeaux, France
| | - Angelo Auricchio
- Cardiocentro Ticino Institute, Ente Ospedaliero Cantonale, Via Tesserete 48, CH-6900 Lugano, Switzerland
- Faculty of Biomedical Sciences, Università della Svizzera Italiana, via la Santa 1, 6962 Lugano, Switzerland
| | - Giulio Conte
- Cardiocentro Ticino Institute, Ente Ospedaliero Cantonale, Via Tesserete 48, CH-6900 Lugano, Switzerland
- Faculty of Biomedical Sciences, Università della Svizzera Italiana, via la Santa 1, 6962 Lugano, Switzerland
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Shinohara T, Takagi M, Kamakura T, Komatsu Y, Aizawa Y, Sekiguchi Y, Yokoyama Y, Aihara N, Hiraoka M, Aonuma K. Late life-threatening arrhythmia in patients with Brugada syndrome: Results from long-term follow-up in a large Japanese cohort. J Cardiovasc Electrophysiol 2024; 35:701-707. [PMID: 38329163 DOI: 10.1111/jce.16205] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 10/04/2023] [Revised: 12/18/2023] [Accepted: 01/23/2024] [Indexed: 02/09/2024]
Abstract
INTRODUCTION Most patients with Brugada syndrome (BrS) are first diagnosed in their 40s, with sudden cardiac death (SCD) often occurring in their 50s. Ventricular fibrillation (VF) may occur in some patients with BrS despite having been asymptomatic for a long period. This study aimed to assess the incidence and risk factors for late life-threatening arrhythmias in patients with BrS. METHODS Patients with BrS (n = 523; mean age, 51 ± 13 years; male, n = 497) were enrolled. The risk of late life-threatening arrhythmia was investigated in 225 patients who had experienced no cardiac events (CEs: SCD or ventricular tachyarrhythmia) for at least 10 years after study enrollment. The incidence of CEs during the follow-up period was examined. RESULTS During the follow-up of the 523 patients, 59 (11%) experienced CEs. The annual incidences of CEs were 2.87%, 0.77%, and 0.09% from study enrollment to 3, 3-10, and after 10 years, respectively. Among 225 patients who had experienced no CEs for at least 10 years after enrollment, four patients (1.8%) subsequently experienced CEs. Kaplan-Meier analysis revealed significant differences in the incidence of late CEs between patients with and without a history of symptoms (p = .032). The positive and negative predictive values of late CEs for the programmed electrical stimulation (PES) test were 2.9% and 100%, respectively. CONCLUSION Our results suggest that patients with BrS who are asymptomatic and have no ventricular tachycardia/VF inducibility by PES are at extremely low risk of experiencing late life-threatening arrhythmias.
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Affiliation(s)
- Tetsuji Shinohara
- Department of Cardiology and Clinical Examination, Faculty of Medicine, Oita University, Oita, Japan
| | - Masahiko Takagi
- Department of Medicine II, Kansai Medical University, Moriguchi, Japan
| | - Tsukasa Kamakura
- Department of Cardiovascular Medicine, Division of Arrhythmia and Electrophysiology, National Cerebral and Cardiovascular Center, Osaka, Japan
| | - Yuki Komatsu
- Department of Cardiology, Faculty of Medicine, University of Tsukuba, Tsukuba, Japan
| | - Yoshiyasu Aizawa
- Department of Cardiovascular Medicine, Nippon Medical School, Tokyo, Japan
| | - Yukio Sekiguchi
- Department of Cardiovascular Internal Medicine, Sakakibara Heart Institute, Fuchu, Japan
| | - Yasuhiro Yokoyama
- Department of Internal Medicine, Division of Cardiology, Daisan Kitashinagawa Hospital, Tokyo, Japan
| | - Naohiko Aihara
- Department of Internal Medicine, Senri Central Hospital, Suita, Japan
| | | | - Kazutaka Aonuma
- Department of Cardiology, Faculty of Medicine, University of Tsukuba, Tsukuba, Japan
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Santinelli V, Ciconte G, Manguso F, Anastasia L, Micaglio E, Calovic Z, Vicedomini G, Mazza B, Vecchi M, Mecarocci V, Locati ET, Boccellino A, Negro G, Napolano A, Giannelli L, Pappone C. High-risk Brugada syndrome: factors associated with arrhythmia recurrence and benefits of epicardial ablation in addition to implantable cardioverter defibrillator implantation. Europace 2023; 26:euae019. [PMID: 38252933 PMCID: PMC10824473 DOI: 10.1093/europace/euae019] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/10/2023] [Revised: 11/30/2023] [Accepted: 12/28/2023] [Indexed: 01/24/2024] Open
Abstract
AIMS This study aims to evaluate the prognostic impact of the arrhythmogenic substrate size in symptomatic Brugada syndrome (BrS) as well as to validate the long-term safety and effectiveness of epicardial radiofrequency ablation (RFA) compared with no-RFA group. METHODS AND RESULTS In this prospective investigational long-term registry study, 257 selected symptomatic BrS patients with implantable cardioverter defibrillator (ICD) implantation were included. Among them, 206 patients underwent epicardial RFA and were monitored for over 5 years post-ablation (RFA group), while 51 patients received only ICD implantation declining RFA. Primary endpoints included risk factors for ventricular fibrillation (VF) events pre-ablation and freedom from VF events post-ablation. In the RFA group, BrS substrates were identified in the epicardial surface of the right ventricle. During the pre-RFA follow-up period (median 27 months), VF episodes and VF storms were experienced by 53 patients. Independent risk factors included substrate size [hazard ratio (HR), 1.13; 95% confidence interval (CI), 1.08-1.18; P < 0.001], aborted cardiac arrest (HR, 2.98; 95% CI, 1.68-5.28; P < 0.001), and SCN5A variants (HR, 2.22; 95% CI, 1.15-4.27; P = 0.017). In the post-RFA follow-up (median 40 months), the RFA group demonstrated superior outcomes compared with no-RFA (P < 0.001) without major procedure-related complications. CONCLUSION Our study underscores the role of BrS substrate extent as a crucial prognostic factor for recurrent VF and validates the safety and efficacy of RFA when compared with a no-RFA group. Our findings highlight the importance of ajmaline in guiding epicardial mapping/ablation in symptomatic BrS patients, laying the groundwork for further exploration of non-invasive methods to guide informed clinical decision-making.
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Affiliation(s)
- Vincenzo Santinelli
- Arrhythmology Department, IRCCS Policlinico San Donato, Piazza E Malan, 20097 San Donato Milanese, Italy
| | - Giuseppe Ciconte
- Arrhythmology Department, IRCCS Policlinico San Donato, Piazza E Malan, 20097 San Donato Milanese, Italy
| | - Francesco Manguso
- Arrhythmology Department, IRCCS Policlinico San Donato, Piazza E Malan, 20097 San Donato Milanese, Italy
| | - Luigi Anastasia
- Arrhythmology Department, IRCCS Policlinico San Donato, Piazza E Malan, 20097 San Donato Milanese, Italy
| | - Emanuele Micaglio
- Arrhythmology Department, IRCCS Policlinico San Donato, Piazza E Malan, 20097 San Donato Milanese, Italy
| | - Zarko Calovic
- Arrhythmology Department, IRCCS Policlinico San Donato, Piazza E Malan, 20097 San Donato Milanese, Italy
| | - Gabriele Vicedomini
- Arrhythmology Department, IRCCS Policlinico San Donato, Piazza E Malan, 20097 San Donato Milanese, Italy
| | - Beniamino Mazza
- Arrhythmology Department, IRCCS Policlinico San Donato, Piazza E Malan, 20097 San Donato Milanese, Italy
| | - Mattia Vecchi
- Arrhythmology Department, IRCCS Policlinico San Donato, Piazza E Malan, 20097 San Donato Milanese, Italy
| | - Valerio Mecarocci
- Arrhythmology Department, IRCCS Policlinico San Donato, Piazza E Malan, 20097 San Donato Milanese, Italy
| | - Emanuela T Locati
- Arrhythmology Department, IRCCS Policlinico San Donato, Piazza E Malan, 20097 San Donato Milanese, Italy
| | - Antonio Boccellino
- Arrhythmology Department, IRCCS Policlinico San Donato, Piazza E Malan, 20097 San Donato Milanese, Italy
| | - Gabriele Negro
- Arrhythmology Department, IRCCS Policlinico San Donato, Piazza E Malan, 20097 San Donato Milanese, Italy
| | - Antonio Napolano
- Arrhythmology Department, IRCCS Policlinico San Donato, Piazza E Malan, 20097 San Donato Milanese, Italy
| | - Luigi Giannelli
- Arrhythmology Department, IRCCS Policlinico San Donato, Piazza E Malan, 20097 San Donato Milanese, Italy
| | - Carlo Pappone
- Arrhythmology Department, IRCCS Policlinico San Donato, Piazza E Malan, 20097 San Donato Milanese, Italy
- University Vita-Salute San Raffaele, Via Olgettina 58, 20132 Milan, Italy
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Behr ER, Conte G, Wilde A. Is right ventricular outflow tract epicardial substrate ablation the standard of care in high-risk Brugada syndrome? Europace 2023; 26:euae020. [PMID: 38252938 PMCID: PMC10824472 DOI: 10.1093/europace/euae020] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/14/2024] [Accepted: 01/16/2024] [Indexed: 01/24/2024] Open
Affiliation(s)
- Elijah R Behr
- Cardiovascular and Genomics Research Institute, St George’s, University of London, Cranmer Terrace, London SW17 0RE, UK
- Cardiology Care Group, St George’s University Hospitals NHS Foundation Trust, London SW17 0QT, UK
- Mayo Clinic Healthcare, London W1B 1PT, UK
| | - Giulio Conte
- Electrophysiology Unit, Department of Cardiology, Fondazione Cardiocentro Ticino, via Tesserete 48, Lugano, Switzerland
| | - Arthur Wilde
- Department of Cardiology, Amsterdam UMC, University of Amsterdam, Amsterdam, The Netherlands
- Amsterdam Cardiovascular Sciences, Heart Failure and Arrhythmias, Amsterdam, The Netherlands
- European Reference Network for Rare, Low Prevalence and Complex Diseases of the Heart (ERN GUARD-Heart)
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Li L, Ding L, Zhou L, Wu L, Zheng L, Zhang Z, Xiong Y, Zhang Z, Yao Y. Outcomes of catheter ablation in high-risk patients with Brugada syndrome refusing an implantable cardioverter defibrillator implantation. Europace 2023; 26:euad318. [PMID: 37889958 PMCID: PMC10754161 DOI: 10.1093/europace/euad318] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/18/2023] [Revised: 08/14/2023] [Accepted: 09/26/2023] [Indexed: 10/29/2023] Open
Abstract
AIMS The aim of this study was to investigate the outcomes of catheter ablation (CA) in preventing arrhythmic events among patients with symptomatic Brugada syndrome (BrS) who declined implantable cardioverter defibrillator (ICD) implantation. METHODS AND RESULTS A total of 40 patients with symptomatic BrS were included in the study, of which 18 refused ICD implantation and underwent CA, while 22 patients received ICD implantation. The study employed substrate modification (including endocardial and epicardial approaches) and ventricular fibrillation (VF)-triggering pre-mature ventricular contraction (PVC) ablation strategies. The primary outcomes were a composite endpoint consisting of episodes of VF and sudden cardiac death during the follow-up period. The study population had a mean age of 43.8 ± 9.6 years, with 36 (90.0%) of them being male. All patients exhibited the typical Type 1 BrS electrocardiogram pattern, and 16 (40.0%) were carriers of an SCN5A mutation. The Shanghai risk scores were comparable between the CA and the ICD groups (7.05 ± 0.80 vs. 6.71 ± 0.86, P = 0.351). Ventricular fibrillation-triggering PVCs were ablated in 3 patients (16.7%), while VF substrates were ablated in 15 patients (83.3%). Epicardial ablation was performed in 12 patients (66.7%). During a median follow-up of 46.2 (17.5-73.7) months, the primary outcomes occurred more frequently in the ICD group than in the CA group (5.6 vs. 54.5%, Log-rank P = 0.012). CONCLUSION Catheter ablation is an effective alternative therapy for improving arrhythmic outcomes in patients with symptomatic BrS who decline ICD implantation. Our findings support the consideration of CA as an alternative treatment option in this population.
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Affiliation(s)
- Le Li
- Chinese Academy of Medical Sciences, Peking Union Medical College, National Center for Cardiovascular Diseases, Fuwai Hospital, Beilishi Road 167#, Xicheng District, Beijing 100037, China
| | - Ligang Ding
- Chinese Academy of Medical Sciences, Peking Union Medical College, National Center for Cardiovascular Diseases, Fuwai Hospital, Beilishi Road 167#, Xicheng District, Beijing 100037, China
| | - Likun Zhou
- Chinese Academy of Medical Sciences, Peking Union Medical College, National Center for Cardiovascular Diseases, Fuwai Hospital, Beilishi Road 167#, Xicheng District, Beijing 100037, China
| | - Lingmin Wu
- Chinese Academy of Medical Sciences, Peking Union Medical College, National Center for Cardiovascular Diseases, Fuwai Hospital, Beilishi Road 167#, Xicheng District, Beijing 100037, China
| | - Lihui Zheng
- Chinese Academy of Medical Sciences, Peking Union Medical College, National Center for Cardiovascular Diseases, Fuwai Hospital, Beilishi Road 167#, Xicheng District, Beijing 100037, China
| | - Zhenhao Zhang
- Chinese Academy of Medical Sciences, Peking Union Medical College, National Center for Cardiovascular Diseases, Fuwai Hospital, Beilishi Road 167#, Xicheng District, Beijing 100037, China
| | - Yulong Xiong
- Chinese Academy of Medical Sciences, Peking Union Medical College, National Center for Cardiovascular Diseases, Fuwai Hospital, Beilishi Road 167#, Xicheng District, Beijing 100037, China
| | - Zhuxin Zhang
- Chinese Academy of Medical Sciences, Peking Union Medical College, National Center for Cardiovascular Diseases, Fuwai Hospital, Beilishi Road 167#, Xicheng District, Beijing 100037, China
| | - Yan Yao
- Chinese Academy of Medical Sciences, Peking Union Medical College, National Center for Cardiovascular Diseases, Fuwai Hospital, Beilishi Road 167#, Xicheng District, Beijing 100037, China
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Pham HM, Nguyen DP, Ta TD, Le TP, Phan PH, Trinh HA, Tran TV, Luong TLA, Nguyen HM, Bui T, Tran TH, Ta TV, Tran V. In silico validation revealed the role of SCN5A mutations and their genotype-phenotype correlations in Brugada syndrome. Mol Genet Genomic Med 2023; 11:e2263. [PMID: 37547970 PMCID: PMC10724507 DOI: 10.1002/mgg3.2263] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/02/2023] [Revised: 07/03/2023] [Accepted: 07/19/2023] [Indexed: 08/08/2023] Open
Abstract
BACKGROUND Brugada syndrome (BrS) is a rare genetic disease that causes sudden cardiac death (SCD) and arrhythmia. SCN5A pathogenic variants (about 30% of diagnosed patients) are responsible for BrS. AIMS Lack of knowledge regarding molecular characteristics and the correlation between genotype and phenotype interfere with the risk stratification and finding the optimal treatment in Vietnam. Therefore, we identified SCN5A variants and evaluated the genotype-phenotype correlation of BrS on 117 Vietnamese probands. MATERIALS AND METHODS The clinical characteristics and blood samples of BrS patients were collected. To determine SCN5A variants, Sanger sequencing was conducted, and subsequently, these variants were analyzed by bioinformatic tools. RESULTS In this cohort, the overall rate of detected variants in SCN5A was 25.6%, which could include both pathogenic and benign variants. In genetic testing, 21 SCN5A variants were identified, including eight novels and 15 published variants. Multiple bioinformatic tools were used to predict variant effect with c.551A>G, c.1890+14G>A, c.3338C>T, c.3578G>A, and c.5484C>T as benign, while other variants were predicted as disease-causing. The family history of SCD (risk ratio [RR] = 4.324, 95% CI: 2.290-8.269, p < 0.001), syncope (RR = 3.147, 95% CI: 1.668-5.982, p = 0.0004), and ventricular tachycardia/ventricular fibrillation (RR = 3.406, 95% CI: 1.722-5.400, p = 0.0035) presented a significantly higher risk in the SCN5A (+) group, consisting of individuals carrying any variant in the SCN5A gene, compared to SCN5A (-) individuals. CONCLUSION The results contribute to clarifying the impact of SCN5A variants on these phenotypes. Further follow-up studies need to be carried out to understand the functional effects of these SCN5A variants on the severity of BrS.
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Affiliation(s)
- Hung Manh Pham
- Center for Gene and Protein ResearchHanoi Medical UniversityHanoiVietnam
- Vietnam National Heart InstituteBach Mai HospitalHanoiVietnam
| | - Duy Phuong Nguyen
- Center for Gene and Protein ResearchHanoi Medical UniversityHanoiVietnam
- Ho Chi Minh City Heart InstituteHo Chi MinhVietnam
| | - Thanh Dat Ta
- Center for Gene and Protein ResearchHanoi Medical UniversityHanoiVietnam
| | - Thi Phuong Le
- Center for Gene and Protein ResearchHanoi Medical UniversityHanoiVietnam
| | - Phong Hai Phan
- Center for Gene and Protein ResearchHanoi Medical UniversityHanoiVietnam
- Vietnam National Heart InstituteBach Mai HospitalHanoiVietnam
| | | | - Tuan Viet Tran
- Center for Gene and Protein ResearchHanoi Medical UniversityHanoiVietnam
- Vietnam National Heart InstituteBach Mai HospitalHanoiVietnam
| | - Thi Lan Anh Luong
- Center for Gene and Protein ResearchHanoi Medical UniversityHanoiVietnam
| | - Ha Minh Nguyen
- Hue Central HospitalHueVietnam
- Pham Ngoc Thanh UniversityHo Chi MinhVietnam
| | - The‐Hung Bui
- Center for Gene and Protein ResearchHanoi Medical UniversityHanoiVietnam
- Center for Molecular Medicine, Clinical Genetics UnitKarolinska Institutet, Karolinska University HospitalStockholmSweden
| | - Thinh Huy Tran
- Center for Gene and Protein ResearchHanoi Medical UniversityHanoiVietnam
| | - Thanh Van Ta
- Center for Gene and Protein ResearchHanoi Medical UniversityHanoiVietnam
| | - Van‐Khanh Tran
- Center for Gene and Protein ResearchHanoi Medical UniversityHanoiVietnam
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Kotake Y, Barua S, Kazi S, Virk S, Bhaskaran A, Campbell T, Bennett RG, Kumar S. Efficacy and safety of catheter ablation for Brugada syndrome: an updated systematic review. Clin Res Cardiol 2023; 112:1715-1726. [PMID: 35451610 PMCID: PMC10698106 DOI: 10.1007/s00392-022-02020-3] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 11/15/2021] [Accepted: 03/31/2022] [Indexed: 12/01/2022]
Abstract
BACKGROUND Patients with Brugada syndrome (BrS) may experience recurrent ventricular arrhythmias (VAs). Catheter ablation is becoming an emerging paradigm for treatment of BrS. OBJECTIVE To assess the efficacy and safety of catheter ablation in BrS in an updated systematic review. METHODS We comprehensively searched the databases of Pubmed/Medline, EMBASE, and Cochrane Central Register of Controlled Trials from inception to 11th of August 2021. RESULTS Fifty-six studies involving 388 patients were included. A substrate-based strategy was used in 338 cases (87%), and a strategy of targeting premature ventricular complex (PVCs)/ventricular tachycardias (VTs) that triggered ventricular fibrillation (VF) in 47 cases (12%), with combined abnormal electrogram and PVC/VT ablation in 3 cases (1%). Sodium channel blocker was frequently used to augment the arrhythmogenic substrate in 309/388 cases (80%), which included a variety of agents, of which ajmaline was most commonly used. After ablation procedure, the pooled incidence of non-inducibility of VA was 87.1% (95% confidence interval [CI], 73.4-94.3; I2 = 51%), and acute resolution of type I ECG was seen in 74.5% (95% CI [52.3-88.6]; I2 = 75%). Over a weighted mean follow up of 28 months, 7.6% (95% CI [2.1-24]; I2 = 67%) had recurrence of type I ECG either spontaneously or with drug challenge and 17.6% (95% CI [10.2-28.6]; I2 = 60%) had recurrence of VA. CONCLUSION Catheter ablation appears to be an efficacious strategy for elimination of arrhythmias or substrate associated with BrS. Further study is needed to identify which patients stand to benefit, and optimal provocation protocol for identifying ablation targets.
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Affiliation(s)
- Yasuhito Kotake
- Department of Cardiology, Westmead Hospital, Westmead, NSW, Australia
- Westmead Applied Research Centre, University of Sydney, Westmead, NSW, Australia
| | - Sumita Barua
- Department of Cardiology, Westmead Hospital, Westmead, NSW, Australia
| | - Samia Kazi
- Department of Cardiology, Westmead Hospital, Westmead, NSW, Australia
| | - Sohaib Virk
- Department of Cardiology, Westmead Hospital, Westmead, NSW, Australia
| | - Ashwin Bhaskaran
- Department of Cardiology, Westmead Hospital, Westmead, NSW, Australia
- Westmead Applied Research Centre, University of Sydney, Westmead, NSW, Australia
| | - Timothy Campbell
- Department of Cardiology, Westmead Hospital, Westmead, NSW, Australia
- Westmead Applied Research Centre, University of Sydney, Westmead, NSW, Australia
| | - Richard G Bennett
- Department of Cardiology, Westmead Hospital, Westmead, NSW, Australia
- Westmead Applied Research Centre, University of Sydney, Westmead, NSW, Australia
| | - Saurabh Kumar
- Department of Cardiology, Westmead Hospital, Westmead, NSW, Australia.
- Westmead Applied Research Centre, University of Sydney, Westmead, NSW, Australia.
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Occhetta E, De Vecchi F, Barbonaglia L, Devecchi C, Matta M, Malacrida M, Patti G, Rametta F. Can specific ECG markers identify a pharmacologically induced type 1 Brugada pattern? Insights from a large, single-center cohort. J Electrocardiol 2023; 81:123-131. [PMID: 37688842 DOI: 10.1016/j.jelectrocard.2023.08.017] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/04/2023] [Revised: 08/16/2023] [Accepted: 08/28/2023] [Indexed: 09/11/2023]
Abstract
BACKGROUND In patients with a type 2 or 3 Brugada pattern, the pharmacological (IC drugs) induction of a type 1 pattern confirms the diagnosis of Brugada syndrome. OBJECTIVE To evaluate the value of various ECG markers in predicting IC drug test results. METHODS We retrospectively analysed 443 consecutive patients referred to our Center (from January 2010 to December 2019) to undergo Ajmaline/Flecainide testing; all had a type 2 or 3 Brugada pattern or were relatives with Brugada syndrome. Clinical parameters and ECG markers (r1V1 and SV6 duration and amplitude, QRSV1/QRSV6 duration, V1 and V2 ST amplitude) were independently evaluated for their association to pharmacological test positivity, and a logistic regression model was applied. RESULTS The drug test was positive in 151 (34%) patients. On multivariate logistic regression analysis, age > 45 years, female gender, HR >60 bpm, QRSV1/QRSV6 duration >1 and non-isoelectric pattern in V2 were associated with a positive test. The percentage of patients who tested positive increased according to the presence of the above ECG markers (from 11.3% in the absence to 57.6% in the presence of both factors). During long-term follow-up, the clinical event rate was higher in patients with predictive ECG markers and very low in those without. CONCLUSIONS In our population we confirmed the ability of QRSV1/QRSV6 duration >1 and of a non-isoelectric pattern in V2 to predict a pharmacologically induced type 1 Brugada pattern. Patients with neither of these ECG markers had a rather low event rate during follow-up.
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Affiliation(s)
| | - Federica De Vecchi
- Cardiology Division, Ospedale S. Andrea, Vercelli, Italy; University of Eastern Piedmont, Maggiore della Carità Hospital, Novara, Italy
| | | | - Chiara Devecchi
- Cardiology Division, Ospedale S. Andrea, Vercelli, Italy; University of Eastern Piedmont, Maggiore della Carità Hospital, Novara, Italy
| | - Mario Matta
- Cardiology Division, Ospedale S. Andrea, Vercelli, Italy; Cardiology Division, University of Turin, Turin, Italy
| | | | - Giuseppe Patti
- University of Eastern Piedmont, Maggiore della Carità Hospital, Novara, Italy
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10
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Gul EE, Bektasoglu G, Dogan Z. Brugada phenocopy associated with multiple psychotic drugs. J Electrocardiol 2023; 81:156-158. [PMID: 37734316 DOI: 10.1016/j.jelectrocard.2023.09.003] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/30/2023] [Revised: 09/07/2023] [Accepted: 09/08/2023] [Indexed: 09/23/2023]
Abstract
Brugada phenocopy (BrP) is a clinical condition characterized by transient ECG changes of Brugada syndrome (BrS), which can be due to various clinical conditions. We describe a case report of BrP due to psychotic drugs.
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Affiliation(s)
- Enes Elvin Gul
- Department of Cardiology, Istanbul Atlas University, Medicine Hospital, Istanbul, Turkiye.
| | - Gokhan Bektasoglu
- Department of Cardiology, Istanbul Atlas University, Medicine Hospital, Istanbul, Turkiye
| | - Zeki Dogan
- Department of Cardiology, Istanbul Atlas University, Medicine Hospital, Istanbul, Turkiye
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11
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Rattanawong P, Mattanapojanat N, Mead-Harvey C, Van Der Walt C, Kewcharoen J, Kanitsoraphan C, Vutthikraivit W, Prasitlumkum N, Putthapiban P, Chintanavilas K, Sahasthas D, Ngarmukos T, Thakkinstian A, Sorajja D, Makarawate P, Shen WK. Predicting arrhythmic event score in Brugada syndrome: Worldwide pooled analysis with internal and external validation. Heart Rhythm 2023; 20:1358-1367. [PMID: 37355026 DOI: 10.1016/j.hrthm.2023.06.013] [Citation(s) in RCA: 3] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 12/04/2022] [Revised: 06/02/2023] [Accepted: 06/16/2023] [Indexed: 06/26/2023]
Abstract
BACKGROUND Brugada syndrome is an inherited arrhythmic disease associated with major arrhythmic events (MAE). Risk predictive scores were previously developed with various performances. OBJECTIVE The purpose of this study was to create a novel score-Predicting Arrhythmic evenT (PAT)-with internal and external validation. METHODS A systematic review was performed to identify risk factors for MAE. The odds ratios (ORs) of each factor were pooled across studies. The PAT scoring scheme was developed based on pooled ORs. The PAT score was internally validated with published 105 Asian patients (follow-up 8.0 ± 4.1 [SD] years) and externally validated with unpublished 164 multiracial patients (82.3% White, 14.6% Asian, 3.2% Black; mean follow-up 8.0 ± 6.9 years) with Brugada syndrome. Performances were assessed and compared with previous scores using receiver operating characteristic curve (ROC) analysis. RESULTS Sixty-seven studies published between 2002 and 2022 from 26 countries (7358 patients) were included. Pooled ORs were estimated, indicating that 15 of 23 risk factors were significant. The PAT score was then developed accordingly. The PAT score had significantly better discrimination (ROC 0.9671) than the BRUGADA-RISK score (ROC 0.7210; P = .006), Shanghai Score System (ROC 0.7079; P = .003), and Sieira et al score (ROC 0.8174; P = .026) in an external validation cohort. PAT score ≥ 10 predicted the first MAE with 95.5% sensitivity and 89.1% specificity (ROC 0.9460) and the recurrent MAE (ROC 0.7061) with 15.4% sensitivity and 93.3% specificity. CONCLUSION The PAT score was shown to be useful in predicting MAE for primary prevention in patients with Brugada syndrome.
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Affiliation(s)
- Pattara Rattanawong
- Department of Cardiovascular Medicine, Mayo Clinic, Phoenix, Arizona; Faculty of Medicine, Ramathibodi Hospital, Mahidol University, Bangkok, Thailand
| | | | - Carolyn Mead-Harvey
- Department of Quantitative Health Sciences, Mayo Clinic, Scottsdale, Arizona
| | | | - Jakrin Kewcharoen
- Division of Cardiology, Department of Medicine, Loma Linda University, Loma Linda, California
| | | | - Wasawat Vutthikraivit
- Division of Cardiovascular Diseases, Department of Internal Medicine, University of Iowa, Iowa City, Iowa
| | - Narut Prasitlumkum
- Department of Cardiology, University of California Riverside, Riverside, California
| | - Prapaipan Putthapiban
- Division of Cardiology, Department of Medicine, Loma Linda University, Loma Linda, California
| | - Kumpol Chintanavilas
- Cardiology Department, Chulabhorn International College of Medicine, Thammasat University, Pathum Thani, Thailand
| | | | - Tachapong Ngarmukos
- Faculty of Medicine, Ramathibodi Hospital, Mahidol University, Bangkok, Thailand
| | - Ammarin Thakkinstian
- Department of Clinical Epidemiology and Biostatistics, Faculty of Medicine Ramathibodi Hospital, Mahidol University, Bangkok, Thailand
| | - Dan Sorajja
- Department of Cardiovascular Medicine, Mayo Clinic, Phoenix, Arizona
| | | | - Win-Kuang Shen
- Department of Cardiovascular Medicine, Mayo Clinic, Phoenix, Arizona.
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12
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Brugada P. Brugada Syndrome: Various Diseases With 1 Face. JACC Clin Electrophysiol 2023; 9:2052-2053. [PMID: 37879799 DOI: 10.1016/j.jacep.2023.08.024] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/16/2023] [Accepted: 08/17/2023] [Indexed: 10/27/2023]
Affiliation(s)
- Pedro Brugada
- Cardiovascular Division, University Hospital of Brussel (UZ Brussel-VUB), Brussels, Belgium.
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13
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Saplaouras A, Kariki O, Mililis P, Zygouri A, Gkouziouta A, Poulos G, Adamopoulos S, Efremidis M, Nyktari E, Letsas KP. Diagnostic and therapeutic dilemmas in a patient with myocarditis, Brugada syndrome and arrhythmic syncope. J Electrocardiol 2023; 80:45-50. [PMID: 37187131 DOI: 10.1016/j.jelectrocard.2023.04.006] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/05/2023] [Revised: 04/13/2023] [Accepted: 04/13/2023] [Indexed: 05/17/2023]
Abstract
We present a case of a previously healthy 23-year-old male who presented with chest pain, palpitations and spontaneous type 1 Brugada electrocardiographic (ECG) pattern. Positive family history for sudden cardiac death (SCD) was remarkable. Initially, clinical symptoms in combination with myocardial enzymes elevation, regional myocardial oedema with late gadolinium enhancement (LGE) on cardiac magnetic resonance (CMR) and inflammatory lymphocytoid-cell infiltrates in the endomyocardial biopsy (EMB) suggested the diagnosis of a myocarditis-induced Brugada phenocopy (BrP). Under immunosuppressive therapy with methylprednisolone and azathioprine, a complete remission of both symptoms and biomarkers was accomplished. However, the Brugada pattern did not resolve. The eventually spontaneous Brugada pattern type 1 established the diagnosis of Brugada syndrome (BrS). Due to his previous history of syncope, the patient was offered an ICD that he declined. After his discharge he experienced a new episode of arrhythmic syncope. He was readmitted and received an ICD.
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Affiliation(s)
| | - Ourania Kariki
- Department of Cardiology, Onassis Cardiac Surgery Center, Athens, Greece
| | - Panagiotis Mililis
- Department of Cardiology, Onassis Cardiac Surgery Center, Athens, Greece
| | - Andromahi Zygouri
- Department of Cardiology, Onassis Cardiac Surgery Center, Athens, Greece
| | | | - George Poulos
- Department of Cardiology, Onassis Cardiac Surgery Center, Athens, Greece
| | | | - Michael Efremidis
- Department of Cardiology, Onassis Cardiac Surgery Center, Athens, Greece
| | - Evangelia Nyktari
- Department of Cardiology, Onassis Cardiac Surgery Center, Athens, Greece
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14
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Katz A, Balasubramanian S, Freedman Z. Procainamide-Provoked Brugada Pattern in a Patient Presenting with New-Onset Atrial Fibrillation or Flutter: When Does it Matter? J Emerg Med 2023; 65:e229-e233. [PMID: 37495422 DOI: 10.1016/j.jemermed.2023.04.020] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/27/2023] [Revised: 03/22/2023] [Accepted: 04/19/2023] [Indexed: 07/28/2023]
Abstract
BACKGROUND Brugada syndrome (BrS) is an inherited disease that can lead to sudden cardiac death. Medications, such as antidysrhythmics, and fevers can unmask or induce the Brugada pattern on an electrocardiogram (ECG). This case report highlights a patient who developed drug-induced Brugada type I pattern after a procainamide infusion for the treatment of new-onset atrial fibrillation (AF) or flutter and discusses the implications for this incidental but potentially lethal finding. CASE REPORT We report a case of a young man who presented to the emergency department (ED) with new-onset AF with rapid ventricular response that began within 12 h of presentation. ED treatments included a crystalloid IV fluid bolus, diltiazem pushes, synchronized electrical cardioversion, and a procainamide infusion. After the procainamide infusion, the patient developed ECG findings consistent with Brugada pattern. Both the AF and Brugada pattern resolved spontaneously within 24 h. The patient was discharged without implantable cardioverter defibrillator placement due to presumed isolated procainamide-induced Brugada pattern and lack of concerning features, such as inducible dysrhythmia during electrophysiology study, family history of sudden death, and history of syncope. The patient was counseled to follow-up with genetics and avoid BrS-inducing medications. WHY SHOULD AN EMERGENCY PHYSICIANS BE AWARE OF THIS?: Procainamide, an option for the treatment of AF in the ED, can provoke Brugada pattern. If encountered, it is important to recall that some patients may not be diagnosed with BrS if determined to be low risk according to the Shanghai criteria. All patients should be referred to cardiology for further evaluation.
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Affiliation(s)
- Anne Katz
- Department of Emergency Medicine, Weill Cornell Medicine, New York, New York
| | - Shriman Balasubramanian
- Department of Emergency Medicine, New York-Presbyterian Hospital Cornell and Columbia, New York, New York
| | - Zachary Freedman
- Department of Emergency Medicine, New York-Presbyterian Hospital Cornell and Columbia, New York, New York
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15
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Six S, Theuns P, Libin P, Nowé A, Pannone L, Bogaerts B, Jaxy S, Olsen C, Pappaert G, Grau I, Sieira J, Van Dooren S, Scheirlynck E, Nekkebroeck J, Mallefroy M, de Asmundis C, Bilsen J. Patient-reported outcome measures on mental health and psychosocial factors in patients with Brugada syndrome. Europace 2023; 25:euad205. [PMID: 37772950 PMCID: PMC10540670 DOI: 10.1093/europace/euad205] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/04/2023] [Accepted: 06/13/2023] [Indexed: 09/30/2023] Open
Abstract
AIMS Brugada syndrome (BrS) is a hereditary arrhythmic disease, associated with sudden cardiac death. To date, little is known about the psychosocial correlates and impacts associated with this disease. The aim of this study was to assess a set of patient-reported psychosocial outcomes, to better profile these patients, and to propose a tailored psychosocial care. METHODS AND RESULTS Patients were recruited at the European reference Centre for BrS at Universitair Ziekenhuis Brussel, Belgium. Recruitment was undertaken in two phases: phase 1 (retrospective), patients with confirmed BrS, and phase 2 (prospective), patients referred for ajmaline testing who had an either positive or negative diagnosis. BrS patients were compared to controls from the general population. Two hundred and nine questionnaires were analysed (144 retrospective and 65 prospective). Collected patient-reported outcomes were on mental health (12 item General Health Questionnaire; GHQ-12), social support (Oslo Social Support Scale), health-related quality of life, presence of Type-D personality (Type-D Scale; DS14), coping styles (Brief-COPE), and personality dimensions (Ten Item Personality Inventory). Results showed higher mental distress (GHQ-12) in BrS patients (2.53 ± 3.03) than in the general population (P < 0.001) and higher prevalence (32.7%) of Type D personality (P < 0.001) in patients with confirmed Brugada syndrome (BrS +). A strong correlation was found in the BrS + group (0.611, P < 0.001) between DS14 negative affectivity subscale and mental distress (GHQ-12). CONCLUSION Mental distress and type D personality are significantly more common in BrS patients compared to the general population. This clearly illustrates the necessity to include mental health screening and care as standard for BrS.
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Affiliation(s)
- Stefaan Six
- Mental Health and Wellbeing Research Group, Department of Public Health, Vrije Universiteit Brussel, Laarbeeklaan 101, 1090, Brussels, Belgium
| | - Peter Theuns
- Department of Experimental and Applied Psychology, Vrije Universiteit Brussel, Brussels, Belgium
| | - Pieter Libin
- Artificial Intelligence Lab, Department of Computer Science, Vrije Universiteit Brussel, Brussels, Belgium
- Data Science Institute, Interuniversity Institute of Biostatistics and Statistical Bioinformatics, UHasselt, Hasselt, Belgium
| | - Ann Nowé
- Artificial Intelligence Lab, Department of Computer Science, Vrije Universiteit Brussel, Brussels, Belgium
| | - Luigi Pannone
- Heart Rhythm Management Centre, Universitair Ziekenhuis Brussel, Postgraduate Program in Cardiac Electrophysiology and Pacing, European Reference Networks Guard-Heart, Vrije Universiteit Brussel, Brussels, Belgium
| | - Bart Bogaerts
- Artificial Intelligence Lab, Department of Computer Science, Vrije Universiteit Brussel, Brussels, Belgium
| | - Simon Jaxy
- Artificial Intelligence Lab, Department of Computer Science, Vrije Universiteit Brussel, Brussels, Belgium
| | - Catharina Olsen
- Clinical Sciences, Research Group Reproduction and Genetics, Centre for Medical Genetics, Vrije Universiteit Brussel (VUB), Universitair Ziekenhuis Brussel (UZ Brussel), Brussels, Belgium
- Brussels Interuniversity Genomics High Throughput Core (BRIGHTcore), Vrije Universiteit Brussel (VUB), Université Libre de Bruxelles (ULB), Laarbeeklaan 101, 1090 Brussels, Belgium
- Interuniversity Institute of Bioinformatics in Brussels (IB)2, Brussels, Belgium
| | - Gudrun Pappaert
- Heart Rhythm Management Centre, Universitair Ziekenhuis Brussel, Postgraduate Program in Cardiac Electrophysiology and Pacing, European Reference Networks Guard-Heart, Vrije Universiteit Brussel, Brussels, Belgium
| | - Isel Grau
- Artificial Intelligence Lab, Department of Computer Science, Vrije Universiteit Brussel, Brussels, Belgium
- Information Systems, Eindhoven University of Technology, Eindhoven, The Netherlands
| | - Juan Sieira
- Heart Rhythm Management Centre, Universitair Ziekenhuis Brussel, Postgraduate Program in Cardiac Electrophysiology and Pacing, European Reference Networks Guard-Heart, Vrije Universiteit Brussel, Brussels, Belgium
| | - Sonia Van Dooren
- Genetics Department, Universitair Ziekenhuis Brussel-Vrije Universiteit Brussel, Brussels, Belgium
| | - Esther Scheirlynck
- Department of Cardiology, Vrije Universiteit Brussel (VUB), Universitair Ziekenhuis Brussel (Centrum Voor Hart-en Vaatziekten), Brussels, Belgium
| | - Julie Nekkebroeck
- Centre for Medical Genetics and Brussels IVF, UZ Brussel, Brussels, Belgium
| | - Marina Mallefroy
- Centre for Heart- and Vascular Disease (CHVD) and Multidisciplinary Cardiac Rehabilitation, UZ Brussel, Brussels, Belgium
| | - Carlo de Asmundis
- Heart Rhythm Management Centre, Universitair Ziekenhuis Brussel, Postgraduate Program in Cardiac Electrophysiology and Pacing, European Reference Networks Guard-Heart, Vrije Universiteit Brussel, Brussels, Belgium
| | - Johan Bilsen
- Mental Health and Wellbeing Research Group, Department of Public Health, Vrije Universiteit Brussel, Laarbeeklaan 101, 1090, Brussels, Belgium
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16
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Kumar N, Ahmed F, Memon A, Ahmed J. Brugada Phenocopy In Hyperkalaemia - A Rare Ecg Finding. J Ayub Med Coll Abbottabad 2023; 35:487-489. [PMID: 38404099 DOI: 10.55519/jamc-03-11542] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/27/2024]
Abstract
Hyperkalaemia is a potentially fatal clinical problem frequently seen in the emergency department (ED). It causes a spectrum of electrocardiogram (ECG) changes such as peaked T-waves, prolonged PR interval, widened QRS complexes, intraventricular/fascicular/bundle branch blocks, etc. Brugada Phenocopy (BrP) is a rare ECG finding seen in severe hyperkalaemia associated with the prevalence of malignant cardiac arrhythmias and all-cause mortality. Unlike Brugada Syndrome (BrS) it is a transient phenomenon and completely resolves with the normalization of hyperkalaemia. Here we report a Brugada Phenocopy (BrP) case observed in a middle-aged male with severe hyperkalaemia.
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Affiliation(s)
- Nirdosh Kumar
- Department of Emergency Medicine, Aga Khan University Hospital, Karachi
| | - Fareed Ahmed
- Department of Emergency Medicine, Aga Khan University Hospital, Karachi
| | | | - Jamil Ahmed
- Department of Emergency Medicine, Aga Khan University Hospital, Karachi
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17
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Nademanee K, Chung FP, Sacher F, Nogami A, Nakagawa H, Jiang C, Hocini M, Behr E, Veerakul G, Jan Smit J, Wilde AAM, Chen SA, Yamashiro K, Sakamoto Y, Morishima I, Das MK, Khongphatthanayothin A, Vardhanabhuti S, Haissaguerre M. Long-Term Outcomes of Brugada Substrate Ablation: A Report from BRAVO (Brugada Ablation of VF Substrate Ongoing Multicenter Registry). Circulation 2023; 147:1568-1578. [PMID: 36960730 DOI: 10.1161/circulationaha.122.063367] [Citation(s) in RCA: 22] [Impact Index Per Article: 22.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 11/22/2022] [Accepted: 02/25/2023] [Indexed: 03/25/2023]
Abstract
BACKGROUND Treatment options for high-risk Brugada syndrome (BrS) with recurrent ventricular fibrillation (VF) are limited. Catheter ablation is increasingly performed but a large study with long-term outcome data is lacking. We report the results of the multicenter, international BRAVO (Brugada Ablation of VF Substrate Ongoing Registry) for treatment of high-risk symptomatic BrS. METHODS We enrolled 159 patients (median age 42 years; 156 male) with BrS and spontaneous VF in BRAVO; 43 (27%) of them had BrS and early repolarization pattern. All but 5 had an implantable cardioverter-defibrillator for cardiac arrest (n=125) or syncope (n=34). A total of 140 (88%) had experienced numerous implantable cardioverter-defibrillator shocks for spontaneous VF before ablation. All patients underwent a percutaneous epicardial substrate ablation with electroanatomical mapping except for 8 who underwent open-thoracotomy ablation. RESULTS In all patients, VF/BrS substrates were recorded in the epicardial surface of the right ventricular outflow tract; 45 (29%) patients also had an arrhythmic substrate in the inferior right ventricular epicardium and 3 in the posterior left ventricular epicardium. After a single ablation procedure, 128 of 159 (81%) patients remained free of VF recurrence; this number increased to 153 (96%) after a repeated procedure (mean 1.2±0.5 procedures; median=1), with a mean follow-up period of 48±29 months from the last ablation. VF burden and frequency of shocks decreased significantly from 1.1±2.1 per month before ablation to 0.003±0.14 per month after the last ablation (P<0.0001). The Kaplan-Meier VF-free survival beyond 5 years after the last ablation was 95%. The only variable associated with a VF-free outcome in multivariable analysis was normalization of the type 1 Brugada ECG, both with and without sodium-channel blockade, after the ablation (hazard ratio, 0.078 [95% CI, 0.008 to 0.753]; P=0.0274). There were no arrhythmic or cardiac deaths. Complications included hemopericardium in 4 (2.5%) patients. CONCLUSIONS Ablation treatment is safe and highly effective in preventing VF recurrence in high-risk BrS. Prospective studies are needed to determine whether it can be an alternative treatment to implantable cardioverter-defibrillator implantation for selected patients with BrS. REGISTRATION URL: https://www. CLINICALTRIALS gov; Unique identifier: NCT04420078.
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Affiliation(s)
- Koonlawee Nademanee
- Center of Excellence in Arrhythmia Research and Department of Medicine, Faculty of Medicine, Chulalongkorn University, Bangkok, Thailand (K.N., A.K., S.V.)
- Pacific Rim Electrophysiology Research Institute at Bumrungrad Hospital, Bangkok, Thailand (K.N.)
| | - Fa-Po Chung
- Heart Rhythm Center, Division of Cardiology, Department of Medicine, Taipei Veterans General Hospital, Taiwan (F.-P.C., S.-A.C.)
- National Yang-Ming Chiao-Tung University School of Medicine, Taipei, Taiwan (F.-P.C., S.-A.C.)
| | - Frederic Sacher
- Cardiac Arrhythmia Department, Bordeaux University Hospital, LIRYC Institute, Université Bordeaux, France (F.S., M. Hocini, M. Haissaguerre)
| | - Akihiko Nogami
- University of Tsukuba, Division of Cardiology, Ibaraki, Japan (A.N.)
| | - Hiroshi Nakagawa
- Department of Cardiovascular Medicine, Cleveland Clinic, OH (H.N.)
| | - Chenyang Jiang
- Sir Run Run Shaw Hospital, College of Medicine, Zhejiang University, Hangzhou, China (C.J.)
| | - Meleze Hocini
- Cardiac Arrhythmia Department, Bordeaux University Hospital, LIRYC Institute, Université Bordeaux, France (F.S., M. Hocini, M. Haissaguerre)
| | - Elijah Behr
- St George's University of London and Cardiovascular Clinical Academic Group, St George's University Hospital NHS Foundation Trust, UK (E.B.)
| | - Gumpanart Veerakul
- Preventive Heart and Lipid Clinic, Bangkok Heart Hospital, BDMS, Bangkok, Thailand (G.V.)
| | | | - Arthur A M Wilde
- Department of Cardiology, Amsterdam Cardiovascular Sciences, Heart Failure and Arrhythmias, Amsterdam University Medical Centre, University of Amsterdam, the Netherlands (A.A.M.W.)
- European Reference Network for rare, low-prevalence, and complex diseases of the heart: ERN GUARD-HEART (A.A.M.W., M.H.)
| | - Shih-Ann Chen
- Heart Rhythm Center, Division of Cardiology, Department of Medicine, Taipei Veterans General Hospital, Taiwan (F.-P.C., S.-A.C.)
- National Yang-Ming Chiao-Tung University School of Medicine, Taipei, Taiwan (F.-P.C., S.-A.C.)
| | - Kohei Yamashiro
- Department of Cardiology, Takatsuki General Hospital, Osaka, Japan (K.Y.)
| | - Yuichiro Sakamoto
- Department of Cardiovascular Medicine, Toyohashi Heart Center, Aichi, Japan (Y.S.)
| | - Itsuro Morishima
- Department of Cardiology, Ogaki Municipal Hospital, Japan (I.M.)
| | - Mithilesh K Das
- Krannert Institute of Cardiology, University of Indiana, Indianapolis (M.K.D.)
| | - Apichai Khongphatthanayothin
- Center of Excellence in Arrhythmia Research and Department of Medicine, Faculty of Medicine, Chulalongkorn University, Bangkok, Thailand (K.N., A.K., S.V.)
| | - Saran Vardhanabhuti
- Center of Excellence in Arrhythmia Research and Department of Medicine, Faculty of Medicine, Chulalongkorn University, Bangkok, Thailand (K.N., A.K., S.V.)
| | - Michel Haissaguerre
- Cardiac Arrhythmia Department, Bordeaux University Hospital, LIRYC Institute, Université Bordeaux, France (F.S., M. Hocini, M. Haissaguerre)
- European Reference Network for rare, low-prevalence, and complex diseases of the heart: ERN GUARD-HEART (A.A.M.W., M.H.)
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Jespersen CHB, Krøll J, Bhardwaj P, Winkel BG, Jacobsen PK, Jøns C, Haarbo J, Kristensen J, Johansen JB, Philbert BT, Riahi S, Torp-Pedersen C, Køber L, Tfelt-Hansen J, Weeke PE. Severity of Brugada syndrome disease manifestation and risk of new-onset depression or anxiety: a Danish nationwide study. Europace 2023; 25:euad112. [PMID: 37129985 PMCID: PMC10228627 DOI: 10.1093/europace/euad112] [Citation(s) in RCA: 5] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/10/2023] [Accepted: 03/20/2023] [Indexed: 05/03/2023] Open
Abstract
AIMS Reduced psychological health is associated with adverse patient outcomes and higher mortality. We aimed to examine if a Brugada syndrome (BrS) diagnosis and symptomatic disease presentation were associated with an increased risk of new-onset depression or anxiety and all-cause mortality. METHODS AND RESULTS All Danish patients diagnosed with BrS (2006-2018) with no history of psychiatric disease and available for ≥6 months follow-up were identified using nationwide registries and followed for up to 5 years after diagnosis. The development of clinical depression or anxiety was evaluated using the prescription of medication and diagnosis codes. Factors associated with developing new-onset depression or anxiety were determined using a multivariate Cox proportional hazards regression model. Disease manifestation was categorized as symptomatic (aborted cardiac arrest, ventricular tachycardia, or syncope) or asymptomatic/unspecified at diagnosis. A total of 223 patients with BrS and no history of psychiatric disease were identified (72.6% male, median age at diagnosis 46 years, 45.3% symptomatic). Of these, 15.7% (35/223) developed new-onset depression or anxiety after BrS diagnosis (median follow-up 5.0 years). A greater proportion of symptomatic patients developed new-onset depression or anxiety compared with asymptomatic patients [21/101 (20.8%) and 14/122 (11.5%), respectively, P = 0.08]. Symptomatic disease presentation (HR 3.43, 1.46-8.05) and older age (lower vs. upper tertile: HR 4.41, 1.42-13.63) were significantly associated with new-onset depression or anxiety. All-cause mortality in this group of patients treated according to guidelines was low (n = 4, 1.8%); however, 3/4 developed depression or anxiety before death. CONCLUSION Approximately, one-sixth of patients with BrS developed new-onset depression or anxiety following a diagnosis of BrS. Symptomatic BrS disease manifestation was significantly associated with new-onset depression or anxiety.
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Affiliation(s)
- Camilla H B Jespersen
- Department of Cardiology, The Heart Centre, Copenhagen University Hospital, Rigshospitalet, Blegdamsvej 9, 2100 Copenhagen, Denmark
| | - Johanna Krøll
- Department of Cardiology, The Heart Centre, Copenhagen University Hospital, Rigshospitalet, Blegdamsvej 9, 2100 Copenhagen, Denmark
| | - Priya Bhardwaj
- Department of Cardiology, The Heart Centre, Copenhagen University Hospital, Rigshospitalet, Blegdamsvej 9, 2100 Copenhagen, Denmark
| | - Bo Gregers Winkel
- Department of Cardiology, The Heart Centre, Copenhagen University Hospital, Rigshospitalet, Blegdamsvej 9, 2100 Copenhagen, Denmark
| | - Peter Karl Jacobsen
- Department of Cardiology, The Heart Centre, Copenhagen University Hospital, Rigshospitalet, Blegdamsvej 9, 2100 Copenhagen, Denmark
| | - Christian Jøns
- Department of Cardiology, The Heart Centre, Copenhagen University Hospital, Rigshospitalet, Blegdamsvej 9, 2100 Copenhagen, Denmark
| | - Jens Haarbo
- Department of Cardiology, Copenhagen University Hospital - Herlev and Gentofte, Gentofte Hospitalsvej 1, 2900 Hellerup, Denmark
| | - Jens Kristensen
- Department of Cardiology, Aarhus University Hospital, Palle Juul-Jensens Boulevard 99, 8200 Aarhus N, Denmark
| | - Jens Brock Johansen
- Department fo Cardiology, Odense University Hospital, J B Winsløws Vej 4, 5000 Odense C, Denmark
| | - Berit T Philbert
- Department of Cardiology, The Heart Centre, Copenhagen University Hospital, Rigshospitalet, Blegdamsvej 9, 2100 Copenhagen, Denmark
| | - Sam Riahi
- Department of Cardiology, Aalborg University Hospital, Hobrovej 18-22, 9000 Aalborg, Denmark
- Department of Clinical Medicine, Aalborg University Hospital, Hobrovej 18-22, 9000 Aalborg, Denmark
| | - Christian Torp-Pedersen
- Department of Cardiology, Nordsjaellands Hospital, Dyrehavevej 29, 3400 Hillerød, Denmark
- Department of Public Health, University of Copenhagen, Øster Farimagsgade 5, 1353 Copenhagen K, Denmark
| | - Lars Køber
- Department of Cardiology, The Heart Centre, Copenhagen University Hospital, Rigshospitalet, Blegdamsvej 9, 2100 Copenhagen, Denmark
| | - Jacob Tfelt-Hansen
- Department of Cardiology, The Heart Centre, Copenhagen University Hospital, Rigshospitalet, Blegdamsvej 9, 2100 Copenhagen, Denmark
- Department of Forensic Medicine, Faculty of Medical Sciences, University of Copenhagen, Frederik V's Vej 11, 2100 Copenhagen Ø, Denmark
| | - Peter E Weeke
- Department of Cardiology, The Heart Centre, Copenhagen University Hospital, Rigshospitalet, Blegdamsvej 9, 2100 Copenhagen, Denmark
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19
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Yu J, Nishi C, Adly E, Cordovani D. Rethinking spinal anesthetic with bupivacaine for cesarean delivery in parturient with Brugada syndrome. Braz J Anesthesiol 2023; 73:236-237. [PMID: 36096235 PMCID: PMC10068530 DOI: 10.1016/j.bjane.2022.08.006] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/19/2022] [Revised: 08/29/2022] [Accepted: 08/31/2022] [Indexed: 06/15/2023]
Affiliation(s)
- Janice Yu
- McMaster University, Department of Anesthesia, Hamilton, Canada.
| | - Cameron Nishi
- McMaster University, Department of Anesthesia, Hamilton, Canada
| | - Elaheh Adly
- McMaster University, Department of Anesthesia, Hamilton, Canada
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20
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Leung KSK, Radford D, Huang H, Lakhani I, Li CKH, Hothi SS, Wai AKC, Liu T, Tse G, Lee S. Risk stratification of sudden cardiac death in asymptomatic female Brugada syndrome patients: A literature review. Ann Noninvasive Electrocardiol 2023; 28:e13030. [PMID: 36628595 PMCID: PMC10023885 DOI: 10.1111/anec.13030] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 11/18/2022] [Accepted: 11/30/2022] [Indexed: 01/12/2023] Open
Abstract
BACKGROUND AND OBJECTIVES Risk stratification in Brugada syndrome remains a difficult problem. Given the male predominance of this disease and their elevated risks of arrhythmic events, affected females have received less attention. It is widely known that symptomatic patients are at increased risk of sudden cardiac death (SCD) than asymptomatic patients, while this might be true in the male population; recent studies have shown that this association might not be significant in females. Over the past few decades, numerous markers involving clinical symptoms, electrocardiographic (ECG) indices, and genetic tests have been explored, with several risk-scoring models developed so far. The objective of this study is to review the current evidence of clinical and ECG markers as well as risk scores on asymptomatic females with Brugada syndrome. FINDINGS Gender differences in ECG markers, the yield of genetic findings, and the applicability of risk scores are highlighted. CONCLUSIONS Various clinical, electrocardiographic, and genetic risk factors are available for assessing SCD risk amongst asymptomatic female BrS patients. However, due to the significant gender discrepancy in BrS, the SCD risk amongst females is often underestimated, and there is a lack of research on female-specific risk factors and multiparametric risk scores. Therefore, multinational studies pooling female BrS patients are needed for the development of a gender-specific risk stratification approach amongst asymptomatic BrS patients.
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Affiliation(s)
- Keith Sai Kit Leung
- Cardiac Electrophysiology UnitCardiovascular Analytics GroupHong KongChina
- Faculty of Health and Life SciencesAston University Medical SchoolBirminghamUK
| | - Danny Radford
- Kent and Medway Medical SchoolUniversity of Kent and Canterbury Christ Church UniversityCanterburyUK
| | - Helen Huang
- University of Medicine and Health Science, Royal College of Surgeons in IrelandDublinIreland
| | - Ishan Lakhani
- Cardiac Electrophysiology UnitCardiovascular Analytics GroupHong KongChina
| | | | - Sandeep Singh Hothi
- Heart and Lung CentreNew Cross Hospital, Royal Wolverhampton NHS TrustWolverhamptonUK
| | | | - Tong Liu
- Tianjin Key Laboratory of Ionic‐Molecular Function of Cardiovascular Disease, Department of CardiologyTianjin Institute of Cardiology, Second Hospital of Tianjin Medical UniversityTianjinChina
| | - Gary Tse
- Cardiac Electrophysiology UnitCardiovascular Analytics GroupHong KongChina
- Kent and Medway Medical SchoolUniversity of Kent and Canterbury Christ Church UniversityCanterburyUK
- Emergency Medicine UnitUniversity of Hong KongHong KongChina
| | - Sharen Lee
- Cardiac Electrophysiology UnitCardiovascular Analytics GroupHong KongChina
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21
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Affiliation(s)
- Chiara Scrocco
- Cardiovascular Clinical Academic Group - St. George’s, University of London and St. George’s University Hospitals NHS Foundation Trust, London, UK
| | - Elijah R Behr
- Cardiovascular Clinical Academic Group - St. George’s, University of London and St. George’s University Hospitals NHS Foundation Trust, London, UK
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22
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Jaber M, Basharat S, Krishnan R, Shah S, Shu R. Ventricular Tachycardia in an Elderly Male With Brugada Syndrome. J Investig Med High Impact Case Rep 2023; 11:23247096231201005. [PMID: 37737574 PMCID: PMC10517598 DOI: 10.1177/23247096231201005] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/03/2023] [Revised: 08/15/2023] [Accepted: 08/27/2023] [Indexed: 09/23/2023] Open
Abstract
We present a case of Brugada syndrome in a 74-year-old patient who presented with urine retention and incidentally found to have non-sustained ventricular tachycardia (NSVT) on electrocardiogram (ECG) and telemetry. To reveal characteristic type 1 Brugada pattern, right-pericardial lead was placed in the third right intercostal space. No antiarrhythmics were started, a loop recorder was implanted, and on follow-up episodes of self-terminating sustained ventricular tachycardia (VT) were noted. The patient was started on quinidine with resolution of VT.
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Affiliation(s)
- Mohammad Jaber
- Riverside University Health System Medical Center, Moreno Valley, CA, USA
| | | | - Rajagopal Krishnan
- Riverside University Health System Medical Center, Moreno Valley, CA, USA
- Loma Linda University Medical Center, CA, USA
| | - Shivang Shah
- Riverside University Health System Medical Center, Moreno Valley, CA, USA
- Loma Linda University Medical Center, CA, USA
| | - Richard Shu
- Riverside University Health System Medical Center, Moreno Valley, CA, USA
- Loma Linda University Medical Center, CA, USA
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23
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Babapoor S, Port Z, Wiener PC, Rasekhi RT, Farrokhran AB, Mainigi SK. COVID-19 Can Unveil Brugada: A Rare Case. Acta Medica (Hradec Kralove) 2023; 66:68-71. [PMID: 37930096 DOI: 10.14712/18059694.2023.18] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/07/2023]
Abstract
Brugada syndrome (BRS) is a channelopathy with three characteristic electrocardiogram patterns and an increased risk of sudden cardiac death (SCD), in the absence of gross structural heart disease. Fever is shown to precipitate ventricular arrhythmias in patients with BRS. Here, we report a rare case of Brugada pattern in a patient with Coronavirus Disease 2019 (COVID-19) without fever. A baseline ECG should be considered for patients with COVID-19, even in the absence of fever. COVID-19 by itself may be a factor that can induce Brugada pattern ECGs.
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Affiliation(s)
- Savalan Babapoor
- Leon H. Charney Division of Cardiology, Cardiac Electrophysiology, NYU Langone Health, New York University School of Medicine, NY, USA.
| | - Zachary Port
- Department of Medicine, Division of Cardiology, Einstein Medical Center, Philadelphia, PA, USA
| | - Philip C Wiener
- Department of Internal Medicine, Division of Cardiology, Washington University in St. Louis, St. Louis, MO, USA
| | | | | | - Sumeet K Mainigi
- Department of Medicine, Division of Cardiology, Einstein Medical Center, Philadelphia, PA, USA
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24
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Hayashi T, Sekiguchi Y, Yamamoto S, Fujita H. ‘Vanishing’ fragmented potential at the epicardium in a patient with Brugada syndrome. BMJ Case Rep 2022; 15:15/7/e249054. [PMID: 35906039 PMCID: PMC9344993 DOI: 10.1136/bcr-2022-249054] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/25/2022] Open
Abstract
A man in his 40s with Brugada syndrome underwent catheter ablation for ventricular fibrillation. When we performed epicardial mapping again to check for residual ablation sites after ablation, a remarkable reproducible fragmented potential was observed at the anterior aspect of the right ventricle using an Advisor HD Grid (Abbott), which had not been detected during the initial mapping before ablation, and which was invisible to the ablation catheter. Fluoroscopic imaging demonstrated a shiny area anterior to the heart, suggesting trapped air, presumed to have arisen when the sheath was inserted into the pericardial space. The air trapped between the heart and pericardium prevented the HD grid from contacting the epicardium, resulting in the recording of a fragmented potential. The trapped air was removed manually via the sheath, and the potential vanished. When fragmented potentials are observed at the anterior right ventricle (RV) in the epicardium, air trapping should be ruled out by fluoroscopy.
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Affiliation(s)
- Tatsuya Hayashi
- Division of Cardiovascular Medicine, Saitama Medical Center, Jichi Medical University, Saitama, Japan
| | - Yukio Sekiguchi
- Department of Cardiology, Kasumigaura Medical Center, Tsuchiura, Japan
| | - Shingo Yamamoto
- Division of Cardiovascular Medicine, Saitama Medical Center, Jichi Medical University, Saitama, Japan
| | - Hideo Fujita
- Division of Cardiovascular Medicine, Saitama Medical Center, Jichi Medical University, Saitama, Japan
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25
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Seghetti P, Biasi N, Laurino M, Tognetti A. Low cardiac frequency associated with higher number of extrasistoles in a computational model of Brugada Syndrome. Annu Int Conf IEEE Eng Med Biol Soc 2022; 2022:2262-2265. [PMID: 36086285 DOI: 10.1109/embc48229.2022.9871551] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/15/2023]
Abstract
Brugada Syndrome is a form of idiopathic ventricular fibrillation, to date there is no definitive theory about how ventricular fibrillation is initiated or its substrate. Starting from the clinical observation that cardiac episodes are more frequent at rest, we developed a model in order to study the effect of cardiac frequency on reentrant activity. Our results suggest that the combination of arrhythmic substrate and cardiac frequency has a role in the insurgence of cardiac arrhythmia.
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26
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Leone O, Agostini V, Graziosi M, Rossi C, Pelletti G, Foà A, Guadagnini G, Riefolo M, Ziacchi M, Fais P, Pelotti S, Rapezzi C, Seri M. [Sudden cardiac death in young people and in adults: primary and contributing causes. The experience of the multidisciplinary network in Emilia-Romagna]. G Ital Cardiol (Rome) 2022; 23:200-210. [PMID: 35343501 DOI: 10.1714/3751.37339] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 06/14/2023]
Abstract
BACKGROUND The multidisciplinary network of Emilia-Romagna for the study of juvenile sudden cardiac death (SCD) was started in Bologna in June 2018 in order to: (1) define the spectrum of etiologies and mechanisms of SCD in young people; (ii) standardize diagnostic terminology and categories; (iii) identify potentially hereditary genetic heart diseases and define the contribution of post-mortem genetic analysis (so-called molecular autopsy) to the overall diagnostic process; (iv) identify preclinical forms of the pathologies in the first-degree relatives of the deceased subject using both phenotypic and genotypic evaluation and, where possible, undertake therapeutic/prophylactic measures (primary prevention). METHODS In the first 2 years of activity (01/06/2018-27/08/2020) 50 cases of SCD came to the attention of the Cardiovascular Pathology Unit of the S. Orsola-Malpighi Polyclinic in Bologna, from Centres of Forensic Medicine and Pathological Anatomy in most of the region. RESULTS Sixty-two percent of cases were sent by forensic pathologists, 36% by clinical pathologists and 2% by the family of the deceased. Medico-legal cases were prompted by autopsies requested by the Judicial Authority in 70% of cases; 55.5% of patients referred by pathologists came from the Cardiovascular Tissue Bank, as part of the regional program for the quality and safety control of organs and tissues from multiorgan-multitissue donors. The average age of the subjects was 35 ± 13.6 years (70% male, range: 1-55 years; median: 38 years). The spectrum of the final diagnoses includes: structurally normal hearts 14%, cardiomyopathies 40%, coronary heart disease 23%, Brugada syndrome 6%, aortic dissection 4%, substance abuse 6%, valvular heart disease 2%, mixed causes 2%. CONCLUSIONS The network is necessarily centered on post-mortem pathological activities, but it does not end with these. If in 60% of cases the pathological autopsy examination was decisive in identifying the cause of death, in the other cases a detailed final diagnosis was reached only with more complex pathways involving molecular genetics, clinical genetics, and toxicology.
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Affiliation(s)
- Ornella Leone
- Unità di Patologia Cardiovascolare e Trapiantologica Cardiaca, Dipartimento di Anatomia Patologica, IRCCS Azienda Ospedaliero-Universitaria di Bologna, Bologna
| | - Valentina Agostini
- Unità di Patologia Cardiovascolare e Trapiantologica Cardiaca, Dipartimento di Anatomia Patologica, IRCCS Azienda Ospedaliero-Universitaria di Bologna, Bologna
| | - Maddalena Graziosi
- Istituto di Cardiologia, Dipartimento di Medicina Specialistica, Diagnostica e Sperimentale, IRCCS Azienda Ospedaliero-Universitaria di Bologna, Bologna
| | - Cesare Rossi
- Istituto di Genetica Medica, Dipartimento di Scienze Mediche e Chirurgiche, IRCCS Azienda Ospedaliero-Universitaria di Bologna, Università degli Studi, Bologna
| | - Guido Pelletti
- Medicina Legale, Dipartimento di Scienze Mediche e Chirurgiche, Università degli Studi, Bologna
| | - Alberto Foà
- Istituto di Cardiologia, Dipartimento di Medicina Specialistica, Diagnostica e Sperimentale, IRCCS Azienda Ospedaliero-Universitaria di Bologna, Bologna
| | - Gianni Guadagnini
- S.S. Medicina Legale, Azienda Sanitaria Locale AUSL di Imola, Imola (BO)
| | - Mattia Riefolo
- Unità di Patologia Cardiovascolare e Trapiantologica Cardiaca, Dipartimento di Anatomia Patologica, IRCCS Azienda Ospedaliero-Universitaria di Bologna, Bologna
| | - Matteo Ziacchi
- Istituto di Cardiologia, Dipartimento di Medicina Specialistica, Diagnostica e Sperimentale, IRCCS Azienda Ospedaliero-Universitaria di Bologna, Bologna
| | - Paolo Fais
- Medicina Legale, Dipartimento di Scienze Mediche e Chirurgiche, Università degli Studi, Bologna
| | - Susi Pelotti
- Medicina Legale, Dipartimento di Scienze Mediche e Chirurgiche, Università degli Studi, Bologna
| | - Claudio Rapezzi
- Centro Cardiovascolare, Università degli Studi, Ferrara - Maria Cecilia Hospital, GVM Care & Research, Cotignola (RA)
| | - Marco Seri
- Istituto di Genetica Medica, Dipartimento di Scienze Mediche e Chirurgiche, IRCCS Azienda Ospedaliero-Universitaria di Bologna, Università degli Studi, Bologna
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27
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Ogura S, Nakamura K, Morita H, Nakagawa K, Nishii N, Akagi S, Toh N, Takaya Y, Yoshida M, Miyoshi T, Watanabe A, Ito H. Fragmented QRS as a predictor of cardiac events in patients with cardiac sarcoidosis. J Cardiol 2021; 79:446-452. [PMID: 34799215 DOI: 10.1016/j.jjcc.2021.10.022] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 08/02/2021] [Revised: 10/11/2021] [Accepted: 10/13/2021] [Indexed: 11/18/2022]
Abstract
BACKGROUND Multiple spikes within the QRS complex, known as fragmented QRS (fQRS), are associated with the occurrences of ventricular arrhythmic events (VAEs) in patients with Brugada syndrome and hypertrophic cardiomyopathy. However, the association between fQRS and occurrence of VAEs in patients with cardiac sarcoidosis (CS) has not been elucidated. METHODS We evaluated the associations between fQRS and cardiac events including VAEs [non-sustained ventricular tachycardia (NSVT), sustained ventricular tachycardia (VT), and ventricular fibrillation (VF)], hospitalization for heart failure, and all-cause death in 68 patients with CS (30 patients with fQRS vs. 38 patients without fQRS) over a 5-year period. RESULTS Cardiac events occurred in 22 patients with fQRS and 18 patients without fQRS (73% vs. 47%, p=0.009). Of the cardiac events that occurred in CS patients, VAEs occurred more frequently in patients with fQRS than in patients without fQRS (VAEs: 70% vs. 45%, p=0.017; NSVT: 70% vs. 45%, p=0.010; VT: 43% vs. 18%, p=0.011, and VF: 6.7% vs. 2.6%, p=0.34), whereas there was no significant difference in hospitalization for heart failure or all-cause death between patients with and those without fQRS (hospitalization for heart failure: 6.7% vs. 5.3%, p=0.75; all-cause death: 6.7% vs. 5.3%, p=0.64). Multivariate analysis showed that fQRS in the baseline electrocardiogram was independently associated with VAEs (hazard ratio: 2.21, 95% confidence interval: 1.15-4.25, p=0.017). CONCLUSION fQRS is a predictor of VAEs in patients with CS.
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Affiliation(s)
- Soichiro Ogura
- Department of Cardiovascular Medicine, Okayama University Graduate School of Medicine, Dentistry and Pharmaceutical Sciences, Okayama, Japan; Department of Cardiovascular Medicine, IMS Katsushika Heart Center, Tokyo, Japan.
| | - Kazufumi Nakamura
- Department of Cardiovascular Medicine, Okayama University Graduate School of Medicine, Dentistry and Pharmaceutical Sciences, Okayama, Japan.
| | - Hiroshi Morita
- Department of Cardiovascular Medicine, Okayama University Graduate School of Medicine, Dentistry and Pharmaceutical Sciences, Okayama, Japan; Department of Cardiovascular Therapeutics, Okayama University Graduate School of Medicine, Dentistry and Pharmaceutical Sciences, Okayama, Japan
| | - Koji Nakagawa
- Department of Cardiovascular Medicine, Okayama University Graduate School of Medicine, Dentistry and Pharmaceutical Sciences, Okayama, Japan
| | - Nobuhiro Nishii
- Department of Cardiovascular Medicine, Okayama University Graduate School of Medicine, Dentistry and Pharmaceutical Sciences, Okayama, Japan
| | - Satoshi Akagi
- Department of Cardiovascular Medicine, Okayama University Graduate School of Medicine, Dentistry and Pharmaceutical Sciences, Okayama, Japan
| | - Norihisa Toh
- Department of Cardiovascular Medicine, Okayama University Graduate School of Medicine, Dentistry and Pharmaceutical Sciences, Okayama, Japan
| | - Yoichi Takaya
- Department of Cardiovascular Medicine, Okayama University Graduate School of Medicine, Dentistry and Pharmaceutical Sciences, Okayama, Japan
| | - Masashi Yoshida
- Department of Cardiovascular Medicine, Okayama University Graduate School of Medicine, Dentistry and Pharmaceutical Sciences, Okayama, Japan
| | - Toru Miyoshi
- Department of Cardiovascular Medicine, Okayama University Graduate School of Medicine, Dentistry and Pharmaceutical Sciences, Okayama, Japan
| | - Atsuyuki Watanabe
- Department of Cardiovascular Medicine, Okayama University Graduate School of Medicine, Dentistry and Pharmaceutical Sciences, Okayama, Japan; Department of Cardiology, National Hospital Organization Okayama Medical Center, Okayama, Japan
| | - Hiroshi Ito
- Department of Cardiovascular Medicine, Okayama University Graduate School of Medicine, Dentistry and Pharmaceutical Sciences, Okayama, Japan
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28
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Le HM, Downey BC, Lanois CJ, Miller PE, Stein CJ, Kerkhof DL, Corrado GD. Comparison of the Limb-lead Electrocardiogram to the 12-Lead Electrocardiogram for Identifying Conditions Associated with Sudden Cardiac Death in Youth Athletes. Am J Cardiol 2021; 152:146-149. [PMID: 34237610 DOI: 10.1016/j.amjcard.2021.04.030] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 03/08/2021] [Revised: 04/15/2021] [Accepted: 04/19/2021] [Indexed: 11/19/2022]
Abstract
The optimal screening strategy to prevent sudden cardiac death (SCD) in athletes remains unknown. Pre-participation screening with electrocardiogram (ECG) remains controversial. The utility and accuracy of limb-lead (LL) ECG alone in identifying cardiac abnormalities associated with SCD has not been studied. This study was a comparative secondary data analysis, comparing the interpretation accuracy of 4 physicians evaluating publicly available ECGs of the most common cardiac conditions associated with SCD in athletes. Each physician interpreted a total of 100 ECGs: 50 normal ECGs (25 LL and 25 standard 12L) and 50 abnormal ECGs (25 LL and 25 standard 12L). The agreement between LL ECGs and 12L ECGs was assessed by Cohen's kappa coefficient and the accuracy of identifying an abnormal ECG was compared across LL and 12L ECGs using a chi-squared test. Inter-rater reliability was assessed by estimating the Fleiss's kappa coefficient. The sensitivity of LL ECG and 12L ECG was identical at 86%. The specificity of LL ECG was 75% (95% CI = 65% to 83%) and 12L ECG was 82% (95% CI = 73% to 89%). Substantial agreement was seen between LL ECG and 12L ECG interpretation across all readers (k = 0.63; 95% CI = 0.49 to 0.77). Interpretation accuracy was 81% (95% CI = 74% to 86%) and 84% (95% CI 78% to 89%) using LL ECG and 12L ECG, respectively (p = 0.43). In conclusion, the accuracy, sensitivity, and specificity were high and comparable for both LL ECG and 12L ECG in identifying cardiovascular conditions associated with SCD. Agreement between LL ECG and 12L ECG was substantial.
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MESH Headings
- Arrhythmogenic Right Ventricular Dysplasia/complications
- Arrhythmogenic Right Ventricular Dysplasia/diagnosis
- Arrhythmogenic Right Ventricular Dysplasia/physiopathology
- Athletes
- Brugada Syndrome/complications
- Brugada Syndrome/diagnosis
- Brugada Syndrome/physiopathology
- Cardiomyopathy, Dilated/complications
- Cardiomyopathy, Dilated/diagnosis
- Cardiomyopathy, Dilated/physiopathology
- Cardiomyopathy, Hypertrophic/complications
- Cardiomyopathy, Hypertrophic/diagnosis
- Cardiomyopathy, Hypertrophic/physiopathology
- Cardiovascular Diseases/complications
- Cardiovascular Diseases/diagnosis
- Cardiovascular Diseases/physiopathology
- Death, Sudden, Cardiac/etiology
- Death, Sudden, Cardiac/prevention & control
- Electrocardiography/methods
- Humans
- Long QT Syndrome/complications
- Long QT Syndrome/diagnosis
- Long QT Syndrome/physiopathology
- Mass Screening
- Myocarditis/complications
- Myocarditis/diagnosis
- Myocarditis/physiopathology
- Wolff-Parkinson-White Syndrome/complications
- Wolff-Parkinson-White Syndrome/diagnosis
- Wolff-Parkinson-White Syndrome/physiopathology
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Affiliation(s)
- Hung M Le
- Boston Children's Hospital, Department of Orthopedics, Division of Sports Medicine, Boston, Massachusetts.
| | - Brian C Downey
- Tufts Medical Center, Division of Cardiology, Boston, Massachusetts
| | - Corey J Lanois
- Boston Children's Hospital, Department of Orthopedics, Division of Sports Medicine, Boston, Massachusetts
| | - Patricia E Miller
- Boston Children's Hospital, Department of Orthopedics, Division of Sports Medicine, Boston, Massachusetts
| | - Cynthia J Stein
- Boston Children's Hospital, Department of Orthopedics, Division of Sports Medicine, Boston, Massachusetts
| | | | - Gianmichel D Corrado
- Boston Children's Hospital, Department of Orthopedics, Division of Sports Medicine, Boston, Massachusetts; Northeastern University, Boston, Massachusetts
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29
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Abstract
COVID-19 has been associated with significant risk for cardiac arrhythmias, particularly in patients with underlying cardiac conditions or prior histories of arrhythmia. It has been shown that a Brugada pattern can be unmasked in febrile patients with COVID-19. Herein we report a unique case of an afebrile patient without known prior history of Brugada presenting with Brugada pattern on ECG.
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Affiliation(s)
- Omowunmi M Adedeji
- Internal Medicine, The George Washington University Hospital, Washington, DC, USA
| | - Zachary Falk
- Internal Medicine, The George Washington University Hospital, Washington, DC, USA
| | - Cynthia M Tracy
- Cardiology, The George Washington University Hospital, Washington, DC, USA
| | - Alberto Batarseh
- Internal Medicine, The George Washington University Hospital, Washington, DC, USA
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30
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Kocabaş U, Payzın S, Hasdemir C. Assessment of atrial functional remodeling in patients with atrioventricular nodal reentrant tachycardia with and without drug-induced type 1 Brugada pattern: A case-control study. J Clin Ultrasound 2021; 49:573-579. [PMID: 33599988 DOI: 10.1002/jcu.22990] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/11/2020] [Revised: 01/06/2021] [Accepted: 02/03/2021] [Indexed: 06/12/2023]
Abstract
PURPOSE The time interval between the onset of the P-wave on electrocardiogram (ECG) and peak A' velocity of the lateral left atrial wall assessed by tissue Doppler imaging (PA-TDI interval) determine total atrial conduction time (TACT) which reflects atrial remodeling and arrhythmic substrate. In this retrospective study, we aimed to assess TACT in patients with atrioventricular nodal reentrant tachycardia (AVNRT) with and without drug-induced type 1 Brugada electrocardiogram ECG pattern (DI-Type 1 BrP) and control subjects. METHODS Study population consisted of 62 consecutive patients (46 women; mean age 44 ± 12 years) undergoing electrophysiological study and ablation for symptomatic, drug-resistant AVNRT, and 42 age-matched and sex-matched control subjects. All patients and control subjects underwent ajmaline challenge test and tissue Doppler imaging. RESULTS A DI-Type 1 BrP was uncovered in 24 of 62 patients with AVNRT (38.7%). PA-TDI interval was similar among AVNRT patients with and without DI-Type 1 BrP (124 ± 12 ms vs 119 ± 14 ms, respectively, P = .32), but significantly longer in patients with AVNRT with as well as without DI-Type 1 BrP than in control subjects (124 ± 12 ms and 119 ± 14 ms vs 105 ± 11 ms, respectively, P < .001). CONCLUSION The TACT assessed by PA-TDI interval is longer in patients with AVNRT with and without DI-Type 1 BrP than in age-matched and sex-matched healthy control subjects.
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Affiliation(s)
- Umut Kocabaş
- Department of Cardiology, Ege University School of Medicine, Izmir, Turkey
- Department of Cardiology, Başkent University Istanbul Hospital, Istanbul, Turkey
| | - Serdar Payzın
- Department of Cardiology, Ege University School of Medicine, Izmir, Turkey
| | - Can Hasdemir
- Department of Cardiology, Ege University School of Medicine, Izmir, Turkey
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31
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Lee S, Zhou J, Li KHC, Leung KSK, Lakhani I, Liu T, Wong ICK, Mok NS, Mak C, Jeevaratnam K, Zhang Q, Tse G. Territory-wide cohort study of Brugada syndrome in Hong Kong: predictors of long-term outcomes using random survival forests and non-negative matrix factorisation. Open Heart 2021; 8:e001505. [PMID: 33547222 PMCID: PMC7871343 DOI: 10.1136/openhrt-2020-001505] [Citation(s) in RCA: 14] [Impact Index Per Article: 4.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 11/10/2020] [Revised: 01/14/2021] [Accepted: 01/15/2021] [Indexed: 12/13/2022] Open
Abstract
OBJECTIVES Brugada syndrome (BrS) is an ion channelopathy that predisposes affected patients to spontaneous ventricular tachycardia/fibrillation (VT/VF) and sudden cardiac death. The aim of this study is to examine the predictive factors of spontaneous VT/VF. METHODS This was a territory-wide retrospective cohort study of patients diagnosed with BrS between 1997 and 2019. The primary outcome was spontaneous VT/VF. Cox regression was used to identify significant risk predictors. Non-linear interactions between variables (latent patterns) were extracted using non-negative matrix factorisation (NMF) and used as inputs into the random survival forest (RSF) model. RESULTS This study included 516 consecutive BrS patients (mean age of initial presentation=50±16 years, male=92%) with a median follow-up of 86 (IQR: 45-118) months. The cohort was divided into subgroups based on initial disease manifestation: asymptomatic (n=314), syncope (n=159) or VT/VF (n=41). Annualised event rates per person-year were 1.70%, 0.05% and 0.01% for the VT/VF, syncope and asymptomatic subgroups, respectively. Multivariate Cox regression analysis revealed initial presentation of VT/VF (HR=24.0, 95% CI=1.21 to 479, p=0.037) and SD of P-wave duration (HR=1.07, 95% CI=1.00 to 1.13, p=0.044) were significant predictors. The NMF-RSF showed the best predictive performance compared with RSF and Cox regression models (precision: 0.87 vs 0.83 vs. 0.76, recall: 0.89 vs. 0.85 vs 0.73, F1-score: 0.88 vs 0.84 vs 0.74). CONCLUSIONS Clinical history, electrocardiographic markers and investigation results provide important information for risk stratification. Machine learning techniques using NMF and RSF significantly improves overall risk stratification performance.
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Affiliation(s)
- Sharen Lee
- Cardiovascular Analytics Group, Laboratory of Cardiovascular Physiology, Hong Kong, China
| | - Jiandong Zhou
- School of Data Science, City University of Hong Kong, Kowloon, Hong Kong
| | - Ka Hou Christien Li
- Faculty of Medicine, Newcastle University, Newcastle upon Tyne, Tyne and Wear, UK
| | | | - Ishan Lakhani
- Cardiovascular Analytics Group, Laboratory of Cardiovascular Physiology, Hong Kong, China
| | - Tong Liu
- Tianjin Key Laboratory of Ionic-Molecular Function of Cardiovascular Disease, Department of Cardiology, Tianjin Institute of Cardiology, The Second Hospital of Tianjin Medical University, Tianjin, China
| | - Ian Chi Kei Wong
- Research department of Practice and Policy, University College London School of Pharmacy, London, UK
- Centre for Safe Medication Practice and Research, Department of Pharmacology and Pharmacy, The University of Hong Kong, Hong Kong, China
| | - Ngai Shing Mok
- Department of Medicine and Geriatrics, Princess Margaret Hospital, Hong Kong, Hong Kong
| | - Chloe Mak
- Department of Pathology, Hong Kong Children's Hospital, Hong Kong, Hong Kong
| | - Kamalan Jeevaratnam
- Faculty of Health and Medical Sciences, University of Surrey, Guildford, Surrey, UK
| | - Qingpeng Zhang
- School of Data Science, City University of Hong Kong, Kowloon, Hong Kong
| | - Gary Tse
- Tianjin Key Laboratory of Ionic-Molecular Function of Cardiovascular Disease, Department of Cardiology, Tianjin Institute of Cardiology, The Second Hospital of Tianjin Medical University, Tianjin, China
- Faculty of Health and Medical Sciences, University of Surrey, Guildford, Surrey, UK
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32
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Spighi L, Zingarini G, Cavallini C. [Severe chest pain, cold sweat and ST-segment elevation]. G Ital Cardiol (Rome) 2020; 21:829. [PMID: 33077988 DOI: 10.1714/3455.34436] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 06/11/2023]
Affiliation(s)
- Lorenzo Spighi
- S.C. Cardiologia e Fisiopatologia Cardiovascolare - S.C. Cardiologia, Ospedale S. Maria della Misericordia, Perugia
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33
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Campuzano O, Sarquella-Brugada G, Cesar S, Arbelo E, Brugada J, Brugada R. Update on Genetic Basis of Brugada Syndrome: Monogenic, Polygenic or Oligogenic? Int J Mol Sci 2020; 21:ijms21197155. [PMID: 32998306 PMCID: PMC7582739 DOI: 10.3390/ijms21197155] [Citation(s) in RCA: 31] [Impact Index Per Article: 7.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/01/2020] [Revised: 09/23/2020] [Accepted: 09/25/2020] [Indexed: 12/13/2022] Open
Abstract
Brugada syndrome is a rare inherited arrhythmogenic disease leading to ventricular fibrillation and high risk of sudden death. In 1998, this syndrome was linked with a genetic variant with an autosomal dominant pattern of inheritance. To date, rare variants identified in more than 40 genes have been potentially associated with this disease. Variants in regulatory regions, combinations of common variants and other genetic alterations are also proposed as potential origins of Brugada syndrome, suggesting a polygenic or oligogenic inheritance pattern. However, most of these genetic alterations remain of questionable causality; indeed, rare pathogenic variants in the SCN5A gene are the only established cause of Brugada syndrome. Comprehensive analysis of all reported genetic alterations identified the origin of disease in no more than 40% of diagnosed cases. Therefore, identifying the cause of this rare arrhythmogenic disease in the many families without a genetic diagnosis is a major current challenge in Brugada syndrome. Additional challenges are interpretation/classification of variants and translation of genetic data into clinical practice. Further studies focused on unraveling the pathophysiological mechanisms underlying the disease are needed. Here we provide an update on the genetic basis of Brugada syndrome.
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Affiliation(s)
- Oscar Campuzano
- Cardiovascular Genetics Centre, University of Girona-IDIBGI, 17190 Girona, Spain
- Medical Science Department, School of Medicine, University of Girona, 17003 Girona, Spain;
- Centro Investigación Biomédica en Red: Enfermedades Cardiovasculares (CIBERCV), 28029 Madrid, Spain; (E.A.); (J.B.)
- Correspondence: (O.C.); (R.B.)
| | - Georgia Sarquella-Brugada
- Medical Science Department, School of Medicine, University of Girona, 17003 Girona, Spain;
- Arrhythmia Unit, Hospital Sant Joan de Déu, University of Barcelona, 08950 Barcelona, Spain;
| | - Sergi Cesar
- Arrhythmia Unit, Hospital Sant Joan de Déu, University of Barcelona, 08950 Barcelona, Spain;
| | - Elena Arbelo
- Centro Investigación Biomédica en Red: Enfermedades Cardiovasculares (CIBERCV), 28029 Madrid, Spain; (E.A.); (J.B.)
- Arrhythmia Unit, Hospital Sant Joan de Déu, University of Barcelona, 08950 Barcelona, Spain;
| | - Josep Brugada
- Centro Investigación Biomédica en Red: Enfermedades Cardiovasculares (CIBERCV), 28029 Madrid, Spain; (E.A.); (J.B.)
- Arrhythmia Unit, Hospital Sant Joan de Déu, University of Barcelona, 08950 Barcelona, Spain;
- Arrhythmia Section, Cardiovascular Institute, Hospital Clinic, University of Barcelona, 08036 Barcelona, Spain
| | - Ramon Brugada
- Cardiovascular Genetics Centre, University of Girona-IDIBGI, 17190 Girona, Spain
- Medical Science Department, School of Medicine, University of Girona, 17003 Girona, Spain;
- Centro Investigación Biomédica en Red: Enfermedades Cardiovasculares (CIBERCV), 28029 Madrid, Spain; (E.A.); (J.B.)
- Familial Cardiomyopathies Unit, Hospital Josep Trueta de Girona, 17007 Girona, Spain
- Correspondence: (O.C.); (R.B.)
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34
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Nene RV, Tolia VM. Fever-Induced Brugada-Pattern Electrocardiogram. J Emerg Med 2020; 59:432-434. [PMID: 32814676 DOI: 10.1016/j.jemermed.2020.06.061] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/11/2020] [Revised: 05/31/2020] [Accepted: 06/14/2020] [Indexed: 06/11/2023]
Abstract
BACKGROUND Brugada syndrome is an increasingly recognized syndrome characterized by a particular electrocardiography (ECG) pattern and clinical criteria and has a high incidence of sudden death in patients with structurally normal hearts. The Brugada ECG pattern can be unmasked by drugs, ischemia, and fever. CASE REPORT We present the case of a 47-year-old man who presented to the emergency department with flu-like symptoms and syncope. On arrival, he was febrile and his ECG showed a Brugada pattern. Although this pattern resolved once his fever resolved, the cardiologists were concerned that his syncopal episode might have been due to ventricular tachycardia/fibrillation, and the patient was admitted for implantable cardiac defibrillator placement. WHY SHOULD AN EMERGENCY PHYSICIAN BE AWARE OF THIS?: Fever and other stressors can unmask a Brugada pattern on ECG, and if patients have concerning clinical criteria, they should receive emergent cardiology follow-up.
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Affiliation(s)
- Rahul V Nene
- Department of Emergency Medicine, University of California-San Diego, San Diego, California
| | - Vaishal M Tolia
- Department of Emergency Medicine, University of California-San Diego, San Diego, California
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35
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Persaud H, Brugna RA. Uncommon diagnosis in a patient with near syncope and abnormal ECG. Nurse Pract 2020; 45:10-13. [PMID: 32826534 DOI: 10.1097/01.npr.0000694728.04617.11] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 06/11/2023]
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36
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Hernandez-Ojeda J, Arbelo E, Jorda P, Borras R, Campuzano O, Sarquella-Brugada G, Iglesias A, Mont L, Brugada R, Brugada J. The role of clinical assessment and electrophysiology study in Brugada syndrome patients with syncope. Am Heart J 2020; 220:213-223. [PMID: 31864099 DOI: 10.1016/j.ahj.2019.10.016] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 04/12/2019] [Accepted: 10/12/2019] [Indexed: 11/19/2022]
Abstract
BACKGROUND Cardiogenic syncope in Brugada syndrome (BrS) increases the risk of major events. Nevertheless, clinical differentiation between cardiogenic and vasovagal syncope can be challenging. We characterized the long-term incidence of major events in a large cohort of BrS patients who presented with syncope. METHODS From a total of 474 patients, syncope was the initial manifestation in 135 (28.5%) individuals (43.9 ± 13.9 years, 71.1% male). The syncope was classified prospectively as cardiogenic, vasovagal, or undefined if unclear characteristics were present. Clinical, electrocardiographic, genetic, and electrophysiologic features were analyzed. Cardiogenic syncope, sustained ventricular arrhythmias, and sudden death were considered major events in follow-up. RESULTS In 66 patients (48.9%), the syncope was cardiogenic; in 51 (37.8%), vasovagal and in 18 (13.3%); undefined. The electrophysiology study (EPS) inducibility was more frequent in patients with cardiogenic syncope and absent in all patients with undefined syncope (28 [53.8%] vs 5 [12.2%] vs 0 [0%]; P < .01). During follow-up (7.7 ± 5.6 years), only patients with cardiogenic syncope presented major events (16 [11.9%]). Among patients with inducible EPS, 7 (21.2%) presented major events (P = .04). The negative predictive value of the EPS for major events was 92.4%. The incidence rate of major events was 2.6% person-year. Parameters associated with major events included cardiogenic syncope (hazard ratio [HR] 6.3; 95% CI 1.1-10.4; P = .05), spontaneous type 1 electrocardiogram (HR 3.7; 95% CI 1.3-10.5; P = .01), and inducible EPS (HR 2.8; 95% CI 1.1-8.8; P = .05). CONCLUSIONS An accurate syncope classification is crucial in BrS patients for risk stratification. In patients with syncope of unclear characteristics, the EPS may be helpful to prevent unnecessary implantable cardioverter defibrillators.
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Affiliation(s)
- Jaime Hernandez-Ojeda
- Arrhythmia Section, Cardiology Department, Hospital Clínic, Universitat de Barcelona. Barcelona, Spain; IDIBAPS, Institut d'Investigació August Pi i Sunyer (IDIBAPS), Barcelona, Spain.
| | - Elena Arbelo
- Arrhythmia Section, Cardiology Department, Hospital Clínic, Universitat de Barcelona. Barcelona, Spain; IDIBAPS, Institut d'Investigació August Pi i Sunyer (IDIBAPS), Barcelona, Spain; Centro de Investigación Biomédica en Red de Enfermedades Cardiovasculares (CIBERCV), Madrid, Spain
| | - Paloma Jorda
- Arrhythmia Section, Cardiology Department, Hospital Clínic, Universitat de Barcelona. Barcelona, Spain; IDIBAPS, Institut d'Investigació August Pi i Sunyer (IDIBAPS), Barcelona, Spain
| | - Roger Borras
- Arrhythmia Section, Cardiology Department, Hospital Clínic, Universitat de Barcelona. Barcelona, Spain; IDIBAPS, Institut d'Investigació August Pi i Sunyer (IDIBAPS), Barcelona, Spain
| | - Oscar Campuzano
- Centro de Investigación Biomédica en Red de Enfermedades Cardiovasculares (CIBERCV), Madrid, Spain; Cardiovascular Genetics Center, University of Girona-IDIBGI, Girona, Spain; Medical Science Department, School of Medicine, University of Girona, Girona, Spain
| | - Georgia Sarquella-Brugada
- Medical Science Department, School of Medicine, University of Girona, Girona, Spain; Arrhythmia Unit, Hospital Sant Joan de Déu, University of Barcelona, Barcelona, Spain
| | - Anna Iglesias
- Centro de Investigación Biomédica en Red de Enfermedades Cardiovasculares (CIBERCV), Madrid, Spain; Cardiovascular Genetics Center, University of Girona-IDIBGI, Girona, Spain; Medical Science Department, School of Medicine, University of Girona, Girona, Spain
| | - Lluis Mont
- Arrhythmia Section, Cardiology Department, Hospital Clínic, Universitat de Barcelona. Barcelona, Spain; IDIBAPS, Institut d'Investigació August Pi i Sunyer (IDIBAPS), Barcelona, Spain; Centro de Investigación Biomédica en Red de Enfermedades Cardiovasculares (CIBERCV), Madrid, Spain
| | - Ramon Brugada
- Centro de Investigación Biomédica en Red de Enfermedades Cardiovasculares (CIBERCV), Madrid, Spain; Cardiovascular Genetics Center, University of Girona-IDIBGI, Girona, Spain; Medical Science Department, School of Medicine, University of Girona, Girona, Spain; Cardiology Service, Hospital Josep Trueta, Girona, Spain
| | - Josep Brugada
- Arrhythmia Section, Cardiology Department, Hospital Clínic, Universitat de Barcelona. Barcelona, Spain; IDIBAPS, Institut d'Investigació August Pi i Sunyer (IDIBAPS), Barcelona, Spain; Centro de Investigación Biomédica en Red de Enfermedades Cardiovasculares (CIBERCV), Madrid, Spain; Arrhythmia Unit, Hospital Sant Joan de Déu, University of Barcelona, Barcelona, Spain
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37
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Abstract
Mutations in the cardiac sodium channel SCN5A can cause phenotypic overlap syndrome of long QT syndrome and Brugada syndrome. However, Brugada-type ST elevations in patients with overlap syndrome are often concealed, which creates a diagnostic challenge. A 38-year-old man was admitted due to ventricular fibrillation (VF). The 12-lead electrocardiogram showed a prolonged QT interval and saddleback-type ST elevation. Pilsicainide administration induced coved-type ST elevation and VF triggered by a single premature ventricular contraction. A genetic analysis showed an SCN5A c.5350G>A p.E1784K mutation. The present case suggests the importance of a drug administration test being performed in the clinical management of overlap syndrome.
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Affiliation(s)
- Hideyuki Hasebe
- Division of Arrhythmology, Shizuoka Saiseikai General Hospital, Japan
- Cardiovascular Division, Faculty of Medicine, University of Tsukuba, Japan
| | - Tomoyo Yokoya
- Division of Arrhythmology, Shizuoka Saiseikai General Hospital, Japan
| | - Nobuyuki Murakoshi
- Cardiovascular Division, Faculty of Medicine, University of Tsukuba, Japan
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38
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Affiliation(s)
- Melinda Sharon
- Department of Emergency Medicine, West Virginia University School of Medicine, Morgantown, WV
| | - Brandon Wilson
- Department of Emergency Medicine, West Virginia University School of Medicine, Morgantown, WV
| | - Bradley End
- Department of Emergency Medicine, West Virginia University School of Medicine, Morgantown, WV
| | - Clara Kraft
- Department of Emergency Medicine, West Virginia University School of Medicine, Morgantown, WV
| | - Joseph Minardi
- Department of Emergency Medicine, West Virginia University School of Medicine, Morgantown, WV
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Haïssaguerre M, Nademanee W, Hocini M, Duchateau J, André C, Lavergne T, Takigawa M, Sacher F, Derval N, Pambrun T, Jais P, Walton R, Potse M, Vigmond E, Dubois R, Bernus O. The Spectrum of Idiopathic Ventricular Fibrillation and J-Wave Syndromes: Novel Mapping Insights. Card Electrophysiol Clin 2019; 11:699-709. [PMID: 31706476 DOI: 10.1016/j.ccep.2019.08.011] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 06/10/2023]
Abstract
Idiopathic ventricular fibrillation and J-wave syndromes are causes of sudden cardiac death (SCD) without any identified structural cardiac disease after extensive investigations. Recent data show that high-density electrophysiological mapping may ultimately offer diagnoses of subclinical diseases in most patients including those termed "unexplained" SCD. Three major conditions can underlie the occurrence of SCD: (1) localized depolarization abnormalities (due to microstructural myocardial alteration), (2) Purkinje abnormalities manifesting as triggering ectopy and inducible reentry; or (3) repolarization heterogeneities. Each condition may result from a spectrum of pathophysiologic processes with implications for individual therapy.
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Affiliation(s)
- Michel Haïssaguerre
- Electrophysiology and Cardiac Stimulation, Bordeaux University Hospital, 311 President Wilson Boulevard, Bordeaux 33200, France; IHU LIRYC, Electrophysiology and Heart Modeling Institute, Avenue du Haut Leveque, Bordeaux 33604, Passes Cedex, France; Univ Bordeaux, CRCTB, U1045, Bordeaux, France.
| | | | - Mélèze Hocini
- Electrophysiology and Cardiac Stimulation, Bordeaux University Hospital, 311 President Wilson Boulevard, Bordeaux 33200, France; IHU LIRYC, Electrophysiology and Heart Modeling Institute, Avenue du Haut Leveque, Bordeaux 33604, Passes Cedex, France; Univ Bordeaux, CRCTB, U1045, Bordeaux, France
| | - Josselin Duchateau
- Electrophysiology and Cardiac Stimulation, Bordeaux University Hospital, 311 President Wilson Boulevard, Bordeaux 33200, France; IHU LIRYC, Electrophysiology and Heart Modeling Institute, Avenue du Haut Leveque, Bordeaux 33604, Passes Cedex, France
| | - Clementine André
- Electrophysiology and Cardiac Stimulation, Bordeaux University Hospital, 311 President Wilson Boulevard, Bordeaux 33200, France; IHU LIRYC, Electrophysiology and Heart Modeling Institute, Avenue du Haut Leveque, Bordeaux 33604, Passes Cedex, France
| | - Thomas Lavergne
- IHU LIRYC, Electrophysiology and Heart Modeling Institute, Avenue du Haut Leveque, Bordeaux 33604, Passes Cedex, France
| | - Masa Takigawa
- Electrophysiology and Cardiac Stimulation, Bordeaux University Hospital, 311 President Wilson Boulevard, Bordeaux 33200, France
| | - Frederic Sacher
- Electrophysiology and Cardiac Stimulation, Bordeaux University Hospital, 311 President Wilson Boulevard, Bordeaux 33200, France; IHU LIRYC, Electrophysiology and Heart Modeling Institute, Avenue du Haut Leveque, Bordeaux 33604, Passes Cedex, France
| | - Nicolas Derval
- Electrophysiology and Cardiac Stimulation, Bordeaux University Hospital, 311 President Wilson Boulevard, Bordeaux 33200, France; IHU LIRYC, Electrophysiology and Heart Modeling Institute, Avenue du Haut Leveque, Bordeaux 33604, Passes Cedex, France
| | - Thomas Pambrun
- Electrophysiology and Cardiac Stimulation, Bordeaux University Hospital, 311 President Wilson Boulevard, Bordeaux 33200, France; IHU LIRYC, Electrophysiology and Heart Modeling Institute, Avenue du Haut Leveque, Bordeaux 33604, Passes Cedex, France
| | - Pierre Jais
- Electrophysiology and Cardiac Stimulation, Bordeaux University Hospital, 311 President Wilson Boulevard, Bordeaux 33200, France; IHU LIRYC, Electrophysiology and Heart Modeling Institute, Avenue du Haut Leveque, Bordeaux 33604, Passes Cedex, France
| | - Rick Walton
- IHU LIRYC, Electrophysiology and Heart Modeling Institute, Avenue du Haut Leveque, Bordeaux 33604, Passes Cedex, France
| | - Mark Potse
- IHU LIRYC, Electrophysiology and Heart Modeling Institute, Avenue du Haut Leveque, Bordeaux 33604, Passes Cedex, France
| | - Ed Vigmond
- IHU LIRYC, Electrophysiology and Heart Modeling Institute, Avenue du Haut Leveque, Bordeaux 33604, Passes Cedex, France
| | - Remi Dubois
- IHU LIRYC, Electrophysiology and Heart Modeling Institute, Avenue du Haut Leveque, Bordeaux 33604, Passes Cedex, France
| | - Olivier Bernus
- IHU LIRYC, Electrophysiology and Heart Modeling Institute, Avenue du Haut Leveque, Bordeaux 33604, Passes Cedex, France; Univ Bordeaux, CRCTB, U1045, Bordeaux, France
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Abstract
Sudden cardiac death (SCD) secondary to sudden cardiac arrest (SCA) is a leading cause of death in the United States, claiming over a quarter million lives annually, and is directly responsible for 50% of all cardiovascular mortality. Brugada Syndrome (BrS) is an arrhythmogenic cardiovascular channelopathy that predisposes asymptomatic patients who have no identified disease to a high-risk of SCD/SCA as their first cardiac event/disease manifestation. Limited progress has been made in risk prediction of SCA and SCD, with the greatest challenge being the ability to identify the small high-risk subgroups concealed within the larger general population. In conclusion, accurate identification of high-risk asymptomatic BrS patients (through multiparametric risk scores composed of reliable and validated unambiguous clinical variables and biomarkers) may hold utility in improving current SCD prediction algorithms, and the appropriate primary prevention therapy may prove valuable in reducing risk of sudden death for this patient population. This systematic review aims to comprehensively summarize qualitative evidence that explore proposed clinical, electrocardiographic, electrophysiological, and genetic markers for risk stratification of patients with BrS phenotype, and to discuss the best available contemporary evidence regarding therapeutic approach.
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Affiliation(s)
| | - N A Mark Estes
- Heart and Vascular Institute, University of Pittsburgh Medical Center, Pittsburgh, Pennsylvania
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Ghisoni E, Marandino L, Lombardi P, Bonzano A, Becco P, Aglietta M, Fizzotti M, Gay F, Rota Scalabrini D. Safe Use of Carfilzomib in a Patient with Multiple Myeloma and Intermittent Type 1 Brugada ECG Pattern: A Case Report. Acta Haematol 2019; 143:481-485. [PMID: 31553985 DOI: 10.1159/000502538] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/26/2019] [Accepted: 07/31/2019] [Indexed: 12/09/2022]
Abstract
Cardiovascular adverse events (CVAEs) are of considerable importance in patients with multiple myeloma (MM), given the significant prevalence of coexisting cardiovascular risk factors and the potential treatment-induced toxicity. Brugada syndrome is a rare cardiological disease responsible for arrhythmia and potentially fatal cardiac arrest. Brugada phenocopies (BrP) are clinical entities which show an identical ECG patterns, but prompt resolution after treatment of the trigger event. A 65-year-old female newly diagnosed MM patient treated with a carfilzomib-based chemotherapy developed a type 1 Brugada ECG pattern during a hospitalization course for sepsis. As fever and the septic event resolved, further ECGs showed no abnormalities and carfilzomib-based treatment could be resumed with no further CVAEs. Though fever-induced BrP is a universally known phenomenon, to our knowledge this is the first case of BrP in a patient with MM during active treatment with carfilzomib.
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Affiliation(s)
- Eleonora Ghisoni
- Medical Oncology, Candiolo Cancer Institute, FPO/IRCCS, Candiolo, Italy
- Department of Oncology, University of Turin, Turin, Italy
| | - Laura Marandino
- Medical Oncology, Candiolo Cancer Institute, FPO/IRCCS, Candiolo, Italy
- Department of Oncology, University of Turin, Turin, Italy
| | - Pasquale Lombardi
- Medical Oncology, Candiolo Cancer Institute, FPO/IRCCS, Candiolo, Italy,
- Department of Oncology, University of Turin, Turin, Italy,
| | | | - Paolo Becco
- Medical Oncology, Candiolo Cancer Institute, FPO/IRCCS, Candiolo, Italy
- Department of Oncology, University of Turin, Turin, Italy
| | - Massimo Aglietta
- Medical Oncology, Candiolo Cancer Institute, FPO/IRCCS, Candiolo, Italy
- Department of Oncology, University of Turin, Turin, Italy
| | - Marco Fizzotti
- Medical Oncology, Candiolo Cancer Institute, FPO/IRCCS, Candiolo, Italy
| | - Francesca Gay
- Division of Hematology, University of Turin, Azienda Ospedaliero-Universitaria Città della Salute e della Scienza, Turin, Italy
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Haanschoten DM, Elvan A, Postema PG, Smit JJJ, Adiyaman A, Ter Bekke RMA, Asaad N, Aanhaanen WTJ, Misier ARR, Delnoy PPHM, Crijns HJGM, Wilde AAM. Catheter ablation in highly symptomatic Brugada patients: a Dutch case series. Clin Res Cardiol 2019; 109:560-569. [PMID: 31478073 DOI: 10.1007/s00392-019-01540-9] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 06/18/2019] [Accepted: 08/20/2019] [Indexed: 12/16/2022]
Abstract
AIMS In the past few years, promising results were described in targeting the arrhythmogenic substrate of the epicardial right ventricular outflow tract (RVOT) region in patients with Brugada syndrome (BrS). In this report, we describe our experience with endo- and epicardial substrate mapping and ablation in a series of highly symptomatic BrS patients. METHODS This case series consists of seven patients with clinical BrS diagnosis who underwent catheter ablation in two Dutch hospitals (Isala hospital Zwolle; and Amsterdam University Medical Centre, location AMC, Amsterdam) and Hamad Heart Hospital in Qatar between 2013 and 2017. All patients had an ICD and recurrent ventricular arrhythmia (VA) episodes. All patients underwent endo-and epicardial mapping of the RVOT region. Elimination of all abnormal potentials and disappearance of BrS ECG pattern during the ablation procedure was the aimed endpoint. RESULTS The study group consisted of seven patients with mean age 45.6 ± 16.9 years. Five patients had SCN5A mutations. One patient was excluded from analysis, since ablation could not be performed due to a very large low-voltage area and was later diagnosed with arrhythmogenic right ventricular cardiomyopathy, associated with an SCN5A mutation. One patient underwent both endo- and epicardial ablation to eliminate VA. During a mean follow-up of 3.6 ± 1.5 years, 5/6 patients remained VA free with two patients continuing quinidine. CONCLUSION In patients with BrS and drug-refractory VA, ablation of the arrhythmogenic substrate in the RVOT region was associated with excellent long-term VA-free survival. The majority of these highly symptomatic BrS patients had an SCN5A mutation and also low-voltage areas epicardially.
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Affiliation(s)
- D M Haanschoten
- Department of Cardiology, Isala Heart Center, Dr. Van Heesweg 2, 8025 AB, Zwolle, The Netherlands
| | - A Elvan
- Department of Cardiology, Isala Heart Center, Dr. Van Heesweg 2, 8025 AB, Zwolle, The Netherlands.
| | - P G Postema
- Academic Medical Center, Amsterdam, The Netherlands
| | - J J J Smit
- Department of Cardiology, Isala Heart Center, Dr. Van Heesweg 2, 8025 AB, Zwolle, The Netherlands
| | - A Adiyaman
- Department of Cardiology, Isala Heart Center, Dr. Van Heesweg 2, 8025 AB, Zwolle, The Netherlands
| | - R M A Ter Bekke
- Maastricht University Medical Centre, Maastricht, The Netherlands
| | - N Asaad
- Hamad Heart Hospital, Doha, Qatar
| | - W T J Aanhaanen
- Department of Cardiology, Isala Heart Center, Dr. Van Heesweg 2, 8025 AB, Zwolle, The Netherlands
| | - A R Ramdat Misier
- Department of Cardiology, Isala Heart Center, Dr. Van Heesweg 2, 8025 AB, Zwolle, The Netherlands
| | - P P H M Delnoy
- Department of Cardiology, Isala Heart Center, Dr. Van Heesweg 2, 8025 AB, Zwolle, The Netherlands
| | - H J G M Crijns
- Maastricht University Medical Centre, Maastricht, The Netherlands
| | - A A M Wilde
- Academic Medical Center, Amsterdam, The Netherlands
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43
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Ragab AAY, Houck CA, van der Does LJME, Lanters EAH, Muskens AJQM, de Groot NMS. QRS Vector Magnitude as Predictor of Ventricular Arrhythmia in Patients With Brugada Syndrome. Am J Cardiol 2019; 123:1962-1966. [PMID: 30955864 DOI: 10.1016/j.amjcard.2019.03.018] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 01/25/2019] [Revised: 03/08/2019] [Accepted: 03/14/2019] [Indexed: 11/30/2022]
Abstract
Risk stratification is the most challenging part in management of patients with Brugada syndrome (BrS). Conduction delay in the right ventricular outflow tract (RVOT) is the major mechanism underlying ventricular tachyarrhythmia (VTA) in BrS. However, QRS duration was not useful in stratifying high-risk patients in large registries. Reconstructing the traditional 12-lead electrocardiogram into QRS vector magnitude can be used to quantify depolarization dispersion and identify high-risk BrS patients. The aim of the study is to test the significance of the QRSvm as a predictor for VTA in patients with BrS. In this retrospective cohort, we included 136 patients (47 ± 15 years, 66% male) who visited outpatient clinic for cardiogenetic screening. All medical records were examined, all 12- lead electrocardiograms were reconstructed into QRSvm using Kors' quasiorthogonal method and were assessed for the presence of electrocardiographic signs indicative of RVOT conduction delay including R wave sign, deep SI, SII >SIII pattern, and Tzou criteria. QRSvm was significantly lower in patients who either presented with VTA or developed VTA during follow-up (1.24 ± 0.35 vs 1.78 ± 0.42 mV, p < 0.001). Positive RVOT conduction delay signs occurred more frequently in symptomatic patients (20% vs 7%, p < 0.001).The area under receiver operator characteristic curve for QRSvm was 0.85 (95% confidence interval [CI] 0.77 to 0.92). Using QRSvm cutoff of 1.55 mV, sensitivity and specificity were 89% and 71%, respectively. Multivariate regression analysis showed that QRSvm and RVOT signs are independent predictors for VTA in BrS patients (QRS vector magnitude: odds ratio 3.68, 95% CI 2.4 to 6.2, p = 0.001; RVOT: odds ratio 2.6, 95% CI 1.4 to 4.9, p = 0.001). In conclusion, not only electrocardiographic signs indicative of RVOT conduction delay but also QRSvm can be used as a predictor for VTA events in BrS patients.
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Affiliation(s)
- Ahmed A Y Ragab
- Department of Cardiology, Erasmus University Medical Center, Rotterdam, the Netherlands
| | - Charlotte A Houck
- Department of Cardiology, Erasmus University Medical Center, Rotterdam, the Netherlands
| | | | - Eva A H Lanters
- Department of Cardiology, Erasmus University Medical Center, Rotterdam, the Netherlands
| | - Agnes J Q M Muskens
- Department of Cardiology, Erasmus University Medical Center, Rotterdam, the Netherlands
| | - Natasja M S de Groot
- Department of Cardiology, Erasmus University Medical Center, Rotterdam, the Netherlands.
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44
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Chen CYJ, Juang JMJ, Lin LY, Liu YB, Ho LT, Yu CC, Huang HC, Lin TT, Liao MC, Chen JJ, Hwang JJ, Chen WJ, Yeh SFS, Yang DH, Chiang FT, Lin JL, Lai LP, Horie M. Gender difference in clinical and genetic characteristics of Brugada syndrome: SADS-TW BrS registry. QJM 2019; 112:343-350. [PMID: 30690642 DOI: 10.1093/qjmed/hcz028] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 12/07/2018] [Indexed: 11/14/2022] Open
Abstract
BACKGROUND Brugada syndrome (BrS) is a heritable sudden cardiac death (SCD) disease with male predominance. Information on gender difference of BrS remains scarce. AIM To investigate the gender difference of BrS in Han Chinese. DESIGN We consecutively enrolled 169 BrS patients (153 males and 16 females) from Han Chinese in Taiwan from 1998 to 2017. METHODS Clinical characteristics, electrocardiographic parameters and SCN5A mutation status were compared between genders. RESULTS The percentage of family history of SCD in females was slightly higher (31.3% vs. 15%, P = 0.15). Females exhibited longer QTc (457.8 ± 33.0 vs. 429.5 ± 42.1 ms, P < 0.01). Regarding cumulative event occurrence by age, Mantel-Cox test showed females had earlier age of onset of first cardiac events (SCD or syncope) than males (P = 0.049), which was mainly attributed to syncope (P < 0.01). Males with SCD exhibited longer QRS duration (114.2 ± 26.8 vs. 104.8 ± 15.3 ms, P = 0.02) and QTc (442.5 ± 57.4 vs. 422.9 ± 28.8 ms, P = 0.02). Males with syncope exhibited longer PR interval (181.2 ± 33.7 vs. 165.7 ± 27.1 ms, P = 0.01), whereas females with SCD or syncope had a trend towards slower heart rates (69.1 ± 9.6 vs. 82.2 ± 16.3 bpm, P = 0.10) than female with no or mild symptoms. There was no difference in the percentage of SCN5A mutation between genders. CONCLUSION Gender difference is present in BrS. Females have longer QTc and suffer from syncope earlier than males. Risk of SCD in males is associated with boarder QRS complex and longer QTc, whereas risk of syncope is associated with longer PR interval in males and slower heart rate in females.
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Affiliation(s)
- C-Y J Chen
- Cardiovascular Center and Division of Cardiology, Department of Internal Medicine, National Taiwan University Hospital and National Taiwan University College of Medicine, Taipei, Taiwan
| | - J-M J Juang
- Cardiovascular Center and Division of Cardiology, Department of Internal Medicine, National Taiwan University Hospital and National Taiwan University College of Medicine, Taipei, Taiwan
| | - L-Y Lin
- Cardiovascular Center and Division of Cardiology, Department of Internal Medicine, National Taiwan University Hospital and National Taiwan University College of Medicine, Taipei, Taiwan
| | - Y-B Liu
- Cardiovascular Center and Division of Cardiology, Department of Internal Medicine, National Taiwan University Hospital and National Taiwan University College of Medicine, Taipei, Taiwan
| | - L-T Ho
- Cardiovascular Center and Division of Cardiology, Department of Internal Medicine, National Taiwan University Hospital and National Taiwan University College of Medicine, Taipei, Taiwan
| | - C-C Yu
- Cardiovascular Center and Division of Cardiology, Department of Internal Medicine, National Taiwan University Hospital and National Taiwan University College of Medicine, Taipei, Taiwan
| | - H-C Huang
- Cardiovascular Center and Division of Cardiology, Department of Internal Medicine, National Taiwan University Hospital and National Taiwan University College of Medicine, Taipei, Taiwan
| | - T-T Lin
- Division of Cardiology, Department of Internal Medicine, National Taiwan University Hospital Hsinchu Branch, Hsinchu City, Taiwan
| | - M-C Liao
- Division of Cardiology, Department of Internal Medicine, National Taiwan University Hospital Hsinchu Branch, Hsinchu City, Taiwan
| | - J-J Chen
- Division of Cardiology, Department of Internal Medicine, National Taiwan University Hospital Yunlin Branch, Yunlin, Taiwan
| | - J-J Hwang
- Cardiovascular Center and Division of Cardiology, Department of Internal Medicine, National Taiwan University Hospital and National Taiwan University College of Medicine, Taipei, Taiwan
| | - W-J Chen
- Cardiovascular Center and Division of Cardiology, Department of Internal Medicine, National Taiwan University Hospital and National Taiwan University College of Medicine, Taipei, Taiwan
| | - S-F S Yeh
- Department of Environmental and Occupational Medicine, National Taiwan University Hospital, Taipei, Taiwan
| | - D-H Yang
- Department of Radiology, Tainan Municipal Hospital, Tainan, Taiwan
| | - F-T Chiang
- Division of Cardiology, Department of Internal Medicine, Fu Jen Catholic University Hospital, New Taipei City, Taiwan
| | - J-L Lin
- Division of Cardiology, Department of Internal Medicine, Taipei Medical University Hospital, Taipei, Taiwan
| | - L-P Lai
- Cardiovascular Center and Division of Cardiology, Department of Internal Medicine, National Taiwan University Hospital and National Taiwan University College of Medicine, Taipei, Taiwan
| | - M Horie
- Department of Cardiovascular Medicine, Shiga University of Medical Sciences, Shiga, Japan
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Linhart M, Tolosana JM, Chipa F, Trucco E, Mont L. Inappropriate Shock Due to Air Entrapment in the Pocket of a Subcutaneous Implantable Cardioverter-defibrillator. Rev Esp Cardiol (Engl Ed) 2019; 72:79-81. [PMID: 29246807 DOI: 10.1016/j.rec.2017.10.026] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/01/2017] [Accepted: 10/10/2017] [Indexed: 06/07/2023]
Affiliation(s)
- Markus Linhart
- Servicio de Arritmias, Institut Clínic de Malalties Cardiovasculars, Hospital Clínic, Universitat de Barcelona, Barcelona, Spain; Institut d'Investigacions Biomèdiques August Pi i Sunyer (IDIBAPS), Barcelona, Spain
| | - José María Tolosana
- Servicio de Arritmias, Institut Clínic de Malalties Cardiovasculars, Hospital Clínic, Universitat de Barcelona, Barcelona, Spain; Institut d'Investigacions Biomèdiques August Pi i Sunyer (IDIBAPS), Barcelona, Spain; Centro de Investigación Biomédica en Red, CIBERCV. Instituto de Salud Carlos III, Madrid, Spain.
| | - Fredy Chipa
- Servicio de Arritmias, Institut Clínic de Malalties Cardiovasculars, Hospital Clínic, Universitat de Barcelona, Barcelona, Spain; Institut d'Investigacions Biomèdiques August Pi i Sunyer (IDIBAPS), Barcelona, Spain
| | - Emilce Trucco
- Servicio de Arritmias, Institut Clínic de Malalties Cardiovasculars, Hospital Clínic, Universitat de Barcelona, Barcelona, Spain; Institut d'Investigacions Biomèdiques August Pi i Sunyer (IDIBAPS), Barcelona, Spain
| | - Lluís Mont
- Servicio de Arritmias, Institut Clínic de Malalties Cardiovasculars, Hospital Clínic, Universitat de Barcelona, Barcelona, Spain; Institut d'Investigacions Biomèdiques August Pi i Sunyer (IDIBAPS), Barcelona, Spain; Centro de Investigación Biomédica en Red, CIBERCV. Instituto de Salud Carlos III, Madrid, Spain
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Shen TT, Geng J, Yuan BB, Chen C, Zhou XJ, Shan QJ. [Analysis of risk factors of ventricular arrhythmia in patients with Brugada syndrome]. Zhonghua Xin Xue Guan Bing Za Zhi 2018; 46:862-867. [PMID: 30462974 DOI: 10.3760/cma.j.issn.0253-3758.2018.11.009] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 06/09/2023]
Abstract
Objective: To investigate the risk factors of ventricular arrhythmias in patients with Brugada syndrome. Methods: Clinical data of 60 Brugada syndrome patients admitted in the department of cardiology of the First Affiliated Hospital of Nanjing Medical University from March 2003 to December 2016 were collected and retrospectively analyzed. The age at diagnosis was (43.2±13.1) years (0.6-83.0 years), 98.3% were males (n=59), and the patients were followed up to (92±41) months (12-169 months). The 12-lead surface electrocardiogram (ECG) recorded at the time of diagnosis and showing the highest type 1 ST elevation, either spontaneously or after provocative drug test, was used for the analysis. Patients were divided into ventricular arrhythmia (VA, n=12) group and non-ventricular arrhythmia (non-VA, n=48) group depending on the presence or absence of clinical VA event. The demographic data and ECG data of the 2 groups were compared, and the independent risk factors of VA events were analyzed by stepwise logistic regression. Results: Incidence of family history of sudden death (7/12 vs. 22.9% (11/48)) and percentage of type 1 ST elevation in the peripheral ECG leads (6/12 vs. 16.67% (8/48)) were significantly higher in VA group than in non-VA group (both P<0.05). Max Tpeak-Tend (Max-Tpe) interval ((144±53)ms vs. (110±16)ms) and dispersion of Tpe ((74±50)ms vs. (43±17)ms) were significantly higher in VA group than in non-VA group (both P<0.05). The area under receiver operating characteristic (ROC) curves for the Max-Tpe interval was 0.693 and Max-Tpe interval ≥140 ms was determined as an optimized cutoff point with increased risk of VA event, which had a sensitivity of 50.0%, a specificity of 98.0%, a positive predictive value of 85.7%, and a negative predictive value of 88.7% for predicting VA event. The ROC curves for the dispersion of Tpe was 0.775 and dispersion of Tpe ≥45 ms was determined as an optimized cutoff point for predicting VA event, which had a sensitivity of 91.7%, a specificity of 64.6%, a positive predictive value of 39.3%, and a negative predictive value of 96.9% for predicting VA event. In multivariate analysis, Max-Tpe interval ≥140 ms (OR=27.53, 95%CI 1.07-706.77, P=0.045) and family history of sudden death (OR=24.63, 95%CI 2.05-295.38, P=0.011) were found to be the independent risk factors of arrhythmic events. Conclusions: Max-Tpe interval ≥140 ms and family history of sudden death are risk factors of VA event in included patients with Brugada syndrome.
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Affiliation(s)
- T T Shen
- Department of Cardiology, First Affiliated Hospital of Nanjing Medical University, Nanjing 210029, China
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47
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Hosseini SM, Kim R, Udupa S, Costain G, Jobling R, Liston E, Jamal SM, Szybowska M, Morel CF, Bowdin S, Garcia J, Care M, Sturm AC, Novelli V, Ackerman MJ, Ware JS, Hershberger RE, Wilde AA, Gollob MH. Reappraisal of Reported Genes for Sudden Arrhythmic Death: Evidence-Based Evaluation of Gene Validity for Brugada Syndrome. Circulation 2018; 138:1195-1205. [PMID: 29959160 PMCID: PMC6147087 DOI: 10.1161/circulationaha.118.035070] [Citation(s) in RCA: 218] [Impact Index Per Article: 36.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 03/23/2018] [Accepted: 06/11/2018] [Indexed: 12/26/2022]
Abstract
BACKGROUND Implicit in the genetic evaluation of patients with suspected genetic diseases is the assumption that the genes evaluated are causative for the disease based on robust scientific and statistical evidence. However, in the past 20 years, considerable variability has existed in the study design and quality of evidence supporting reported gene-disease associations, raising concerns of the validity of many published disease-causing genes. Brugada syndrome (BrS) is an arrhythmia syndrome with a risk of sudden death. More than 20 genes have been reported to cause BrS and are assessed routinely on genetic testing panels in the absence of a systematic, evidence-based evaluation of the evidence supporting the causality of these genes. METHODS We evaluated the clinical validity of genes tested by diagnostic laboratories for BrS by assembling 3 gene curation teams. Using an evidence-based semiquantitative scoring system of genetic and experimental evidence for gene-disease associations, curation teams independently classified genes as demonstrating limited, moderate, strong, or definitive evidence for disease causation in BrS. The classification of curator teams was reviewed by a clinical domain expert panel that could modify the classifications based on their independent review and consensus. RESULTS Of 21 genes curated for clinical validity, biocurators classified only 1 gene ( SCN5A) as definitive evidence, whereas all other genes were classified as limited evidence. After comprehensive review by the clinical domain Expert panel, all 20 genes classified as limited evidence were reclassified as disputed with regard to any assertions of disease causality for BrS. CONCLUSIONS Our results contest the clinical validity of all but 1 gene clinically tested and reported to be associated with BrS. These findings warrant a systematic, evidence-based evaluation for reported gene-disease associations before use in patient care.
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Affiliation(s)
- S. Mohsen Hosseini
- Ted Rogers Cardiac Genome Clinic (S.M.H., R.K., R.J., E.L., S.B.), The Hospital for Sick Children, Toronto, Ontario, Canada
- * Drs Hosseini, Kim, and Udupa contributed equally
| | - Raymond Kim
- Ted Rogers Cardiac Genome Clinic (S.M.H., R.K., R.J., E.L., S.B.), The Hospital for Sick Children, Toronto, Ontario, Canada
- Division of Clinical and Metabolic Genetics (R.K., G.C., R.J., E.L., S.M.J., S.B.), The Hospital for Sick Children, Toronto, Ontario, Canada
- Fred A. Litwin Family Center in Genetic Medicine, University Health Network, Toronto, Ontario, Canada (R.K., M.S., C.F.M.)
- * Drs Hosseini, Kim, and Udupa contributed equally
| | - Sharmila Udupa
- Toronto General Hospital Research Institute, University of Toronto, Ontario, Canada (S.U., M.H.G.)
- * Drs Hosseini, Kim, and Udupa contributed equally
| | - Gregory Costain
- Division of Clinical and Metabolic Genetics (R.K., G.C., R.J., E.L., S.M.J., S.B.), The Hospital for Sick Children, Toronto, Ontario, Canada
| | - Rebekah Jobling
- Ted Rogers Cardiac Genome Clinic (S.M.H., R.K., R.J., E.L., S.B.), The Hospital for Sick Children, Toronto, Ontario, Canada
- Division of Clinical and Metabolic Genetics (R.K., G.C., R.J., E.L., S.M.J., S.B.), The Hospital for Sick Children, Toronto, Ontario, Canada
| | - Eriskay Liston
- Ted Rogers Cardiac Genome Clinic (S.M.H., R.K., R.J., E.L., S.B.), The Hospital for Sick Children, Toronto, Ontario, Canada
- Division of Clinical and Metabolic Genetics (R.K., G.C., R.J., E.L., S.M.J., S.B.), The Hospital for Sick Children, Toronto, Ontario, Canada
| | - Seema M. Jamal
- Division of Clinical and Metabolic Genetics (R.K., G.C., R.J., E.L., S.M.J., S.B.), The Hospital for Sick Children, Toronto, Ontario, Canada
| | - Marta Szybowska
- Fred A. Litwin Family Center in Genetic Medicine, University Health Network, Toronto, Ontario, Canada (R.K., M.S., C.F.M.)
| | - Chantal F. Morel
- Fred A. Litwin Family Center in Genetic Medicine, University Health Network, Toronto, Ontario, Canada (R.K., M.S., C.F.M.)
| | - Sarah Bowdin
- Ted Rogers Cardiac Genome Clinic (S.M.H., R.K., R.J., E.L., S.B.), The Hospital for Sick Children, Toronto, Ontario, Canada
- Division of Clinical and Metabolic Genetics (R.K., G.C., R.J., E.L., S.M.J., S.B.), The Hospital for Sick Children, Toronto, Ontario, Canada
| | - John Garcia
- Invitae Corporation, San Francisco, CA (J.G.)
| | - Melanie Care
- Peter Munk Cardiac Centre, Department of Medicine (M.C., M.H.G.), Toronto General Hospital, University of Toronto, Ontario, Canada
| | - Amy C. Sturm
- Geisinger Health System Genomic Medicine Institute, Danville, PA (A.C.S.)
| | - Valeria Novelli
- Centro Benito Stirpe per la Morte Improvvisa del Giovane Atleta, Fondazione Policlinico Universitario Agostino Gemelli, Catholic University of the Sacred Heart, Rome, Italy (V.N.)
| | - Michael J. Ackerman
- Departments of Cardiovascular Diseases, Pediatrics, and Molecular Pharmacology and Experimental Therapeutics, Divisions of Heart Rhythm Services and Pediatric Cardiology, Windland Smith Rice Sudden Death Genomics Laboratory, Rochester, MN (M.J.A.)
| | - James S. Ware
- National Heart and Lung Institute, MRC London Institute of Medical Sciences, Imperial College London, Royal Brompton & Harefield Hospitals, United Kingdom (J.S.W.)
| | - Ray E. Hershberger
- Department of Internal Medicine, Division of Human Genetics and Cardiovascular Division, Ohio State University, Columbus (R.E.H.)
| | - Arthur A.M. Wilde
- AMC Heart Center, Department of Clinical and Experimental Cardiology, Academic Medical Center, Amsterdam, The Netherlands (A.A.M.W.)
- Princess Al-Jawhara Al-Brahim Centre of Excellence in Research of Hereditary Disorders, Jeddah, Saudi Arabia (A.A.M.W.). Columbia University Irving Medical Centre, New York (A.A.M.W.)
| | - Michael H. Gollob
- Toronto General Hospital Research Institute, University of Toronto, Ontario, Canada (S.U., M.H.G.)
- Peter Munk Cardiac Centre, Department of Medicine (M.C., M.H.G.), Toronto General Hospital, University of Toronto, Ontario, Canada
- Department of Physiology, Peter Munk Cardiovascular Molecular Medicine Laboratory (M.H.G.), Toronto General Hospital, University of Toronto, Ontario, Canada
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Yeates L, Ingles J, Gray B, Singarayar S, Sy RW, Semsarian C, Bagnall RD. A balanced translocation disrupting SCN5A in a family with Brugada syndrome and sudden cardiac death. Heart Rhythm 2018; 16:231-238. [PMID: 30170230 DOI: 10.1016/j.hrthm.2018.08.027] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 07/25/2018] [Indexed: 12/19/2022]
Abstract
BACKGROUND Brugada syndrome (BrS) is a primary arrhythmia syndrome affecting 1 in 2000 of the general population. Genetic testing identifies pathogenic variants in the sodium voltage-gated channel α-subunit 5 gene (SCN5A) in up to 25% of familial BrS. Balanced translocations, which involve the exchange of the ends of 2 different chromosomes, are found in approximately 1 in 500 people. They usually are benign and only rarely are reported to cause arrhythmogenic disorders. OBJECTIVE The purpose of this study was to identify the genetic mechanism underlying a family with BrS, sick sinus syndrome, cardiac hypertrophy, sudden cardiac death, and multiple miscarriages. METHODS We clinically evaluated family members with an electrocardiogram, 2-dimensional echocardiogram, and provocation testing with ajmaline challenge. Cytogenetic testing included karyotype and fluorescent in situ hybridization (FISH) analysis. We performed gene panel, exome, and genome sequencing analysis. RESULTS Sequencing of 128 cardiac genes and exome sequencing of a family with BrS, sick sinus syndrome, cardiac hypertrophy, sudden cardiac death, and multiple miscarriages did not reveal a pathogenic variant. Karyotype and FISH analysis identified a balanced translocation breaking the SCN5A gene on chromosome 3 and the multiple chromosome maintenance 10 gene (MCM10) on chromosome 10 t(3;10)(p22.2;p13). We characterized both translocation breakpoint junctions using genome sequencing and found no regions of sequence homology. CONCLUSION A balanced translocation breaking SCN5A is a novel mechanism underlying disease in a family with BrS, sick sinus syndrome, cardiac hypertrophy, and sudden cardiac death. Genome sequencing can identify rare chromosomal aberrations causing inherited diseases that may otherwise be missed using gene panel and exome sequencing-based approaches.
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Affiliation(s)
- Laura Yeates
- Agnes Ginges Centre for Molecular Cardiology Centenary Institute, The University of Sydney, Sydney, NSW, Australia; Department of Cardiology, Royal Prince Alfred Hospital, Sydney, NSW, Australia
| | - Jodie Ingles
- Agnes Ginges Centre for Molecular Cardiology Centenary Institute, The University of Sydney, Sydney, NSW, Australia; Department of Cardiology, Royal Prince Alfred Hospital, Sydney, NSW, Australia; Sydney Medical School, Faculty of Medicine and Health, The University of Sydney, Sydney, NSW, Australia
| | - Belinda Gray
- Agnes Ginges Centre for Molecular Cardiology Centenary Institute, The University of Sydney, Sydney, NSW, Australia; Department of Cardiology, Royal Prince Alfred Hospital, Sydney, NSW, Australia; Sydney Medical School, Faculty of Medicine and Health, The University of Sydney, Sydney, NSW, Australia
| | - Suresh Singarayar
- Prince of Wales Hospital and Eastern Heart Clinic, Sydney, NSW, Australia; University of New South Wales, Sydney, NSW, Australia
| | - Raymond W Sy
- Department of Cardiology, Royal Prince Alfred Hospital, Sydney, NSW, Australia; Sydney Medical School, Faculty of Medicine and Health, The University of Sydney, Sydney, NSW, Australia
| | - Christopher Semsarian
- Agnes Ginges Centre for Molecular Cardiology Centenary Institute, The University of Sydney, Sydney, NSW, Australia; Department of Cardiology, Royal Prince Alfred Hospital, Sydney, NSW, Australia; Sydney Medical School, Faculty of Medicine and Health, The University of Sydney, Sydney, NSW, Australia
| | - Richard D Bagnall
- Agnes Ginges Centre for Molecular Cardiology Centenary Institute, The University of Sydney, Sydney, NSW, Australia; Sydney Medical School, Faculty of Medicine and Health, The University of Sydney, Sydney, NSW, Australia.
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Affiliation(s)
| | - Piotr Sobieszczyk
- From the Department of Medicine, Brigham and Women's Hospital, Boston
| | - Neal K Lakdawala
- From the Department of Medicine, Brigham and Women's Hospital, Boston
| | - Amy L Miller
- From the Department of Medicine, Brigham and Women's Hospital, Boston
| | - Joseph Loscalzo
- From the Department of Medicine, Brigham and Women's Hospital, Boston
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