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Kataoka N, Imamura T. Unique feature of Brugada syndrome in children. Pacing Clin Electrophysiol 2024; 47:172. [PMID: 38038122 DOI: 10.1111/pace.14893] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 10/10/2023] [Accepted: 11/17/2023] [Indexed: 12/02/2023]
Affiliation(s)
- Naoya Kataoka
- Second Department of Internal Medicine, University of Toyama, Toyama, Japan
| | - Teruhiko Imamura
- Second Department of Internal Medicine, University of Toyama, Toyama, Japan
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Achmad C, Kamarullah W, Putra ICS, Firmansyah DK, Iqbal M, Karwiky G, Pramudyo M, Martha JW, Akbar MR. Investigation of High-Risk Electrocardiographic Markers as Predictors of Major Arrhythmic Events in Brugada Syndrome: A Systematic Review and Meta-analysis. Curr Probl Cardiol 2023; 48:101727. [PMID: 36997139 DOI: 10.1016/j.cpcardiol.2023.101727] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/17/2023] [Revised: 03/22/2023] [Accepted: 03/23/2023] [Indexed: 03/30/2023]
Abstract
INTRODUCTION Numerous studies have demonstrated that a type I Brugada electrocardiographic (ECG) pattern, history of syncope, prior sudden cardiac arrest, and previously documented ventricular tachyarrhythmias are still insufficient to stratify the risk of sudden cardiac death in Brugada syndrome (BrS). Several auxiliary risk stratification parameters are pursued to yield a better prognostic model. Our aim was to assess the association between several ECG markers (wide QRS, fragmented QRS, S-wave in lead I, aVR sign, early repolarization pattern in inferolateral leads, and repolarization dispersion pattern) with the risk of developing poor outcomes in BrS. METHODS A systematic literature search from several databases was conducted from database inception until August 17th, 2022. Studies were eligible if it investigated the relationship between the ECG markers with the likelihood of acquiring major arrhythmic events (MAE). RESULTS This meta-analysis comprised 27 studies with a total of 6552 participants. Our study revealed that wide QRS, fragmented QRS, S-wave in lead I, aVR sign, early repolarization pattern in inferolateral leads, and repolarization dispersion ECG pattern were associated with the incremental risk of syncope, ventricular tachyarrhythmias, implantable cardioverter-defibrillator shock, and sudden cardiac death in the future, with the risk ratios ranging from 1.41 to 2.00. Moreover, diagnostic test accuracy meta-analysis indicated that the repolarization dispersion ECG pattern had the highest overall area under curve (AUC) value amid other ECG markers regarding our outcomes of interest. CONCLUSION A multivariable risk assessment approach based on the prior mentioned ECG markers potentially improves the current risk stratification models in BrS patients.
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Affiliation(s)
- Chaerul Achmad
- Department of Cardiology and Vascular Medicine, Faculty of Medicine, University of Padjadjaran, Bandung, Indonesia.
| | - William Kamarullah
- R. Syamsudin SH Regional Public Hospital, Sukabumi, West Java, Indonesia
| | - Iwan Cahyo Santosa Putra
- Department of Cardiology and Vascular Medicine, Faculty of Medicine, University of Padjadjaran, Bandung, Indonesia
| | - Dena Karina Firmansyah
- Department of Cardiology and Vascular Medicine, R. Syamsudin SH Regional Public Hospital, Sukabumi, West Java, Indonesia
| | - Mohammad Iqbal
- Department of Cardiology and Vascular Medicine, Faculty of Medicine, University of Padjadjaran, Bandung, Indonesia
| | - Giky Karwiky
- Department of Cardiology and Vascular Medicine, Faculty of Medicine University of Padjadjaran, Bandung, Indonesia
| | - Miftah Pramudyo
- Department of Cardiology and Vascular Medicine, Faculty of Medicine University of Padjadjaran, Bandung, Indonesia
| | - Januar Wibawa Martha
- Department of Cardiology and Vascular Medicine, Faculty of Medicine University of Padjadjaran, Bandung, Indonesia
| | - Mohammad Rizki Akbar
- Department of Cardiology and Vascular Medicine, Faculty of Medicine University of Padjadjaran, Bandung, Indonesia
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Iqbal M, Putra ICS, Pranata R, Budiarso MN, Pramudyo M, Goenawan H, Akbar MR, Kartasasmita AS. Electrocardiographic Markers Indicating Right Ventricular Outflow Tract Conduction Delay as a Predictor of Major Arrhythmic Events in Patients With Brugada Syndrome: A Systematic Review and Meta-Analysis. Front Cardiovasc Med 2022; 9:931622. [PMID: 35783830 PMCID: PMC9247269 DOI: 10.3389/fcvm.2022.931622] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/29/2022] [Accepted: 05/26/2022] [Indexed: 11/13/2022] Open
Abstract
IntroductionRisk stratification in Brugada Syndrome (BrS) patients is still challenging due to the heterogeneity of clinical presentation; thus, some additional risk markers are needed. Several studies investigating the association between RVOT conduction delay sign on electrocardiography (ECG) and major arrhythmic events (MAE) in BrS patients showed inconclusive results. This meta-analysis aims to evaluate the association between RVOT conduction delay signs presented by aVR sign and large S wave in lead I, and MAE in BrS patients.MethodsThe literature search was performed using several online databases from the inception to March 16th, 2022. We included studies consisting of two main components, including ECG markers of RVOT conduction delay (aVR sign and large S wave in lead I) and MAE related to BrS (syncope/VT/VF/SCD/aborted SCD/appropriate ICD shocks)ResultsMeta-analysis of eleven cohort studies with a total of 2,575 participants showed RVOT conduction delay sign was significantly associated with MAE in BrS patients [RR = 1.87 (1.35, 2.58); p < 0.001; I2= 52%, Pheterogeneity = 0.02]. Subgroup analysis showed that aVR sign [RR = 2.00 (1.42, 2.83); p < 0.001; I2= 0%, Pheterogeneity = 0.40] and large S wave in lead I [RR = 1.74 (1.11, 2.71); p = 0.01; I2= 60%, Pheterogeneity = 0.01] were significantly associated with MAE. Summary receiver operating characteristics analysis revealed the aVR sign [AUC: 0.77 (0.73–0.80)] and large S wave in lead I [AUC: 0.69 (0.65–0.73)] were a good predictor of MAE in BrS patients.ConclusionRVOT conduction delay sign, presented by aVR sign and large S wave in the lead I, is significantly associated with an increased risk of MAE in BrS patients. Hence, we propose that these parameters may be useful as an additional risk stratification tool to predict MAE in BrS patients.Systematic Review Registrationhttps://www.crd.york.ac.uk/prospero/#recordDetails, identifier: CRD42022321090.
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Affiliation(s)
- Mohammad Iqbal
- Department of Cardiology and Vascular Medicine, Faculty of Medicine University of Padjadjaran, Bandung, Indonesia
- *Correspondence: Mohammad Iqbal
| | - Iwan Cahyo Santosa Putra
- Department of Cardiology and Vascular Medicine, Faculty of Medicine University of Padjadjaran, Bandung, Indonesia
| | - Raymond Pranata
- Department of Cardiology and Vascular Medicine, Faculty of Medicine University of Padjadjaran, Bandung, Indonesia
| | | | - Miftah Pramudyo
- Department of Cardiology and Vascular Medicine, Faculty of Medicine University of Padjadjaran, Bandung, Indonesia
| | - Hanna Goenawan
- Division of Physiology, Department of Biomedical Sciences, Faculty of Medicine University of Padjadjaran, Bandung, Indonesia
| | - Mohammad Rizki Akbar
- Department of Cardiology and Vascular Medicine, Faculty of Medicine University of Padjadjaran, Bandung, Indonesia
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Kataoka N, Imamura T, Koi T, Uchida K, Kinugawa K. A Simple Predictive Marker in Cardiac Resynchronization Therapy Recipients: Prominent S-Wave in Right Precordial Leads. MEDICINA (KAUNAS, LITHUANIA) 2021; 57:medicina57080815. [PMID: 34441021 PMCID: PMC8400009 DOI: 10.3390/medicina57080815] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 07/01/2021] [Revised: 08/03/2021] [Accepted: 08/06/2021] [Indexed: 12/04/2022]
Abstract
Background and objectives: Current guidelines criteria do not satisfactorily discriminate responders to cardiac resynchronization therapy (CRT). QRS amplitude is an established index to recognize the severity of myocardial disturbance and might be a key to optimal patient selection for CRT. Materials and Methods: (1) Initial R-wave amplitude, (2) S-wave amplitude, and (3) a summation of maximal R- or R′-wave amplitude and S-wave amplitude were measured at baseline. These parameters were averaged according to right (V1 to V3) or left (V4 to V6) precordial leads. The impact of these parameters on response to CRT, which was defined as a decrease in left ventricular end-systolic volume ≥15% at six-month follow-up, was investigated. Results: Among 47 patients (71 years old, 28 men) who received guideline-indicated CRT implantation, 25 (53%) achieved the definition of CRT responder. Among baseline electrocardiogram parameters, only the higher S-wave amplitude in right precordial leads was an independent predictor of CRT responders (odds ratio: 2.181, 95% confidence interval: 1.078–4.414, p = 0.030) at a cutoff of 1.44 mV. The cutoff was independently associated with cumulative incidence of heart failure readmission and appropriate electrical defibrillation following CRT implantation (p < 0.05, respectively). Conclusions: Prominent S-wave in right precordial leads might be a promising index to predict left ventricular reverse remodeling and greater clinical outcomes following CRT implantation.
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Lee S, Wong WT, Wong ICK, Mak C, Mok NS, Liu T, Tse G. Ventricular Tachyarrhythmia Risk in Paediatric/Young vs. Adult Brugada Syndrome Patients: A Territory-Wide Study. Front Cardiovasc Med 2021; 8:671666. [PMID: 34179137 PMCID: PMC8225934 DOI: 10.3389/fcvm.2021.671666] [Citation(s) in RCA: 6] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/24/2021] [Accepted: 05/18/2021] [Indexed: 12/22/2022] Open
Abstract
Introduction: Brugada syndrome (BrS) is a cardiac ion channelopathy with a higher prevalence in Asia compared to the Western populations. The present study compared the differences in clinical and electrocardiographic (ECG) presentation between paediatric/young (≤25 years old) and adult (>25 years) BrS patients. Method: This was a territory-wide retrospective cohort study of consecutive BrS patients presenting to public hospitals in Hong Kong. The primary outcome was spontaneous ventricular tachycardia/ventricular fibrillation (VT/VF). Results: The cohort consists of 550 consecutive patients (median age of initial presentation = 51 ± 23 years; female = 7.3%; follow-up period = 83 ± 80 months), divided into adult (n = 505, mean age of initial presentation = 52 ± 19 years; female = 6.7%; mean follow-up period = 83 ± 80 months) and paediatric/young subgroups (n = 45, mean age of initial presentation = 21 ± 5 years, female = 13.3%, mean follow-up period = 73 ± 83 months). The mean annual VT/VF incidence rate were 17 and 25 cases per 1,000 patient-year, respectively. Multivariate analysis showed that initial presentation of type 1 pattern (HR = 1.80, 95% CI = [1.02, 3.15], p = 0.041), initial asymptomatic presentation (HR = 0.26, 95% CI = [0.07, 0.94], p = 0.040) and increased P-wave axis (HR = 0.98, 95% CI = [0.96, 1.00], p = 0.036) were significant predictors of VT/VF for the adult subgroup. Only initial presentation of VT/VF was predictive (HR = 29.30, 95% CI = [1.75, 492.00], p = 0.019) in the paediatric/young subgroup. Conclusion: Clinical and ECG presentation of BrS vary between the paediatric/young and adult population in BrS. Risk stratification and management strategies for younger patients should take into consideration and adopt an individualised approach.
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Affiliation(s)
- Sharen Lee
- Cardiovascular Analytics Group, Laboratory of Cardiovascular Physiology, Hong Kong, China
| | - Wing Tak Wong
- State Key Laboratory of Agrobiotechnology (CUHK), School of Life Sciences, Chinese University of Hong Kong, Hong Kong, China
| | - Ian Chi Kei Wong
- Centre for Safe Medication Practice and Research, Department of Pharmacology and Pharmacy, Li Ka Shing Faculty of Medicine, The University of Hong Kong, Hong Kong, China.,School of Pharmacy, University College London, London, United Kingdom
| | - Chloe Mak
- Department of Pathology, Hong Kong Children's Hospital, Hong Kong, China
| | - Ngai Shing Mok
- Department of Medicine and Geriatrics, Princess Margaret Hospital, Hong Kong, China
| | - Tong Liu
- Tianjin Key Laboratory of Ionic-Molecular Function of Cardiovascular Disease, Department of Cardiology, Tianjin Institute of Cardiology, Second Hospital of Tianjin Medical University, Tianjin, China
| | - Gary Tse
- Tianjin Key Laboratory of Ionic-Molecular Function of Cardiovascular Disease, Department of Cardiology, Tianjin Institute of Cardiology, Second Hospital of Tianjin Medical University, Tianjin, China.,Faculty of Health and Medical Sciences, University of Surrey, Guildford, United Kingdom.,Kent and Medway Medical School, Canterbury, United Kingdom
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Rattanawong P, Kewcharoen J, Kanitsoraphan C, Barry T, Shanbhag A, Ko Ko NL, Vutthikraivit W, Home M, Agasthi P, Ashraf H, Shimizu W, Shen WK. Does the Age of Sudden Cardiac Death in Family Members Matter in Brugada Syndrome? J Am Heart Assoc 2021; 10:e019788. [PMID: 34013737 PMCID: PMC8483509 DOI: 10.1161/jaha.120.019788] [Citation(s) in RCA: 6] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 01/11/2023]
Abstract
Background Brugada syndrome is an inherited cardiac channelopathy associated with major arrhythmic events (MAEs). The presence of a positive family history of sudden cardiac death (SCD) as a risk predictor of MAE remains controversial. We aimed to examine the association between family history of SCD and MAEs stratified by age of SCD with a systematic review and meta-analysis. Methods and Results We searched the databases of MEDLINE and EMBASE from January 1992 to January 2020. Data from each study were combined using the random-effects model. Fitted metaregression was performed to evaluate the association between the age of SCD in families and the risk of MAE. Twenty-two studies from 2004 to 2019 were included in this meta-analysis involving 3386 patients with Brugada syndrome. The overall family history of SCD was not associated with increased risk of MAE in Brugada syndrome (pooled odds ratio [OR], 1.11; 95% CI, 0.82-1.51; P=0.489, I2=45.0%). However, a history of SCD in family members of age younger than 40 years of age did increase the risk of MAE by ≈2-fold (pooled OR, 2.03; 95% CI, 1.11-3.73; P=0.022, I2=0.0%). When stratified by the age of cut point at 50, 45, 40, and 35 years old, a history of SCD in younger family member was significantly associated with a higher risk of MAE (pooled OR, 0.49, 1.30, 1.51, and 2.97, respectively; P=0.046). Conclusions A history of SCD among family members of age younger than 40 years was associated with a higher risk of MAE.
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Affiliation(s)
- Pattara Rattanawong
- Department of Cardiovascular Medicine Mayo Clinic Phoenix AZ.,Faculty of Medicine Ramathibodi Hospital Mahidol University Bangkok Thailand
| | - Jakrin Kewcharoen
- University of Hawaii Internal Medicine Residency Program Honolulu HI
| | | | - Timothy Barry
- Department of Cardiovascular Medicine Mayo Clinic Phoenix AZ
| | - Anusha Shanbhag
- Department of Cardiovascular Medicine Mayo Clinic Phoenix AZ
| | - Nway L Ko Ko
- Department of Cardiovascular Medicine Mayo Clinic Phoenix AZ
| | - Wasawat Vutthikraivit
- Division of Cardiovascular Medicine Department of Internal Medicine University of Iowa IA
| | | | | | - Hasan Ashraf
- Department of Cardiovascular Medicine Mayo Clinic Phoenix AZ
| | - Wataru Shimizu
- Department of Cardiovascular Medicine Graduate School of Medicine Nippon Medical School Tokyo Japan
| | - Win-Kuang Shen
- Department of Cardiovascular Medicine Mayo Clinic Phoenix AZ
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Chen CC, Chung FP, Lin YJ, Chang SL, Lo LW, Hu YF, Tuan TC, Chao TF, Liao JN, Lin CY, Chang TY, Wu CI, Liu CM, Chin CG, Liu SH, Cheng WH, Chou CY, Lugtu IC, Chen SA. Spatiotemporal differences in precordial electrocardiographic amplitude before and after flecainide provocation are associated with a history of unstable ventricular arrhythmia in Brugada syndrome. J Cardiovasc Electrophysiol 2021; 32:758-765. [PMID: 33448496 DOI: 10.1111/jce.14888] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 07/28/2020] [Revised: 12/11/2020] [Accepted: 01/02/2021] [Indexed: 11/28/2022]
Abstract
INTRODUCTION A drug provocation test (DPT) is important for the diagnosis of Brugada syndrome (BrS). The link, however, between dynamic changes of electrocardiography (ECG) features after DPT and unstable ventricular arrhythmia (VA) in BrS remains unknown. METHODS Between 2014 and 2019, we assessed 27 patients with BrS (median age: 37.0 [interquartile range, IQR: 22.0-51.0] years; 25 men), including 9 (33.3%) with a history of unstable VA and 18 (66.7%) without. All patients in the study presented with Brugada-like ECG features before DPT. The ECG parameters and dynamic changes (∆) in 12-lead ECGs recorded from the second, third, and fourth intercostal spaces (ICS) before and at 1, 6, 12, 18, and 24 h after DPT (oral flecainide 400 mg) were analyzed. RESULTS The total amplitude of V1 at the third ICS 18 and 24 h after DPT was significantly lower in patients with a history of unstable VA than in those without. Patients with BrS and unstable VAs had a significantly larger ∆ amplitude of V1 at the second ICS 12 h after DPT than in those without unstable VAs (0.28 [0.18-0.41] mV vs. 0.08 [0.01-0.15] mV, p = .01). A multivariate analysis revealed that the amplitude of V1 at the third ICS 18 and 24 h after DPT and the ∆ amplitude of V1 at the second ICS 12 h after DPT were associated with a history of unstable VA. CONCLUSION Nonuniform changes and spatiotemporal differences in precordial ECG features after DPT were observed in patients with BrS and these may be surrogate markers for risk stratification.
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Affiliation(s)
- Chun-Chao Chen
- Heart Rhythm Center and Division of Cardiology, Department of Medicine, Taipei Veterans General Hospital, Taipei, Taiwan.,Division of Cardiology, Department of Internal Medicine, Shuang Ho Hospital, Taipei Medical University, New Taipei City, Taiwan.,Division of cardiology, Taipei Heart Institute, Taipei Medical University, Taipei, Taiwan
| | - Fa-Po Chung
- Heart Rhythm Center and Division of Cardiology, Department of Medicine, Taipei Veterans General Hospital, Taipei, Taiwan.,Department of Medicine, National Yang-Ming University School of Medicine, Taipei, Taiwan
| | - Yenn-Jiang Lin
- Heart Rhythm Center and Division of Cardiology, Department of Medicine, Taipei Veterans General Hospital, Taipei, Taiwan.,Department of Medicine, National Yang-Ming University School of Medicine, Taipei, Taiwan
| | - Shih-Lin Chang
- Heart Rhythm Center and Division of Cardiology, Department of Medicine, Taipei Veterans General Hospital, Taipei, Taiwan.,Department of Medicine, National Yang-Ming University School of Medicine, Taipei, Taiwan
| | - Li-Wei Lo
- Heart Rhythm Center and Division of Cardiology, Department of Medicine, Taipei Veterans General Hospital, Taipei, Taiwan.,Department of Medicine, National Yang-Ming University School of Medicine, Taipei, Taiwan
| | - Yu-Feng Hu
- Heart Rhythm Center and Division of Cardiology, Department of Medicine, Taipei Veterans General Hospital, Taipei, Taiwan.,Department of Medicine, National Yang-Ming University School of Medicine, Taipei, Taiwan
| | - Ta-Chuan Tuan
- Heart Rhythm Center and Division of Cardiology, Department of Medicine, Taipei Veterans General Hospital, Taipei, Taiwan.,Department of Medicine, National Yang-Ming University School of Medicine, Taipei, Taiwan
| | - Tze-Fan Chao
- Heart Rhythm Center and Division of Cardiology, Department of Medicine, Taipei Veterans General Hospital, Taipei, Taiwan.,Department of Medicine, National Yang-Ming University School of Medicine, Taipei, Taiwan
| | - Jo-Nan Liao
- Heart Rhythm Center and Division of Cardiology, Department of Medicine, Taipei Veterans General Hospital, Taipei, Taiwan.,Department of Medicine, National Yang-Ming University School of Medicine, Taipei, Taiwan
| | - Chin-Yu Lin
- Heart Rhythm Center and Division of Cardiology, Department of Medicine, Taipei Veterans General Hospital, Taipei, Taiwan.,Department of Medicine, National Yang-Ming University School of Medicine, Taipei, Taiwan
| | - Ting-Yung Chang
- Heart Rhythm Center and Division of Cardiology, Department of Medicine, Taipei Veterans General Hospital, Taipei, Taiwan.,Department of Medicine, National Yang-Ming University School of Medicine, Taipei, Taiwan
| | - Cheng-I Wu
- Heart Rhythm Center and Division of Cardiology, Department of Medicine, Taipei Veterans General Hospital, Taipei, Taiwan.,Department of Medicine, National Yang-Ming University School of Medicine, Taipei, Taiwan
| | - Chih-Min Liu
- Heart Rhythm Center and Division of Cardiology, Department of Medicine, Taipei Veterans General Hospital, Taipei, Taiwan.,Department of Medicine, National Yang-Ming University School of Medicine, Taipei, Taiwan
| | - Chye-Gen Chin
- Heart Rhythm Center and Division of Cardiology, Department of Medicine, Taipei Veterans General Hospital, Taipei, Taiwan.,Division of Cardiovascular Medicine, Department of Internal Medicine, Wan Fang Hospital, Taipei Medical University, Taipei, Taiwan
| | - Shin-Huei Liu
- Heart Rhythm Center and Division of Cardiology, Department of Medicine, Taipei Veterans General Hospital, Taipei, Taiwan.,Department of Medicine, National Yang-Ming University School of Medicine, Taipei, Taiwan
| | - Wen-Han Cheng
- Heart Rhythm Center and Division of Cardiology, Department of Medicine, Taipei Veterans General Hospital, Taipei, Taiwan.,Department of Medicine, National Yang-Ming University School of Medicine, Taipei, Taiwan
| | - Ching-Yao Chou
- Heart Rhythm Center and Division of Cardiology, Department of Medicine, Taipei Veterans General Hospital, Taipei, Taiwan.,Division of Cardiology, Department of Internal Medicine, Shin Kong Wu Ho-Su Memorial Hospital, Taipei, Taiwan
| | - Isaiah C Lugtu
- Heart Rhythm Center and Division of Cardiology, Department of Medicine, Taipei Veterans General Hospital, Taipei, Taiwan
| | - Shih-Ann Chen
- Heart Rhythm Center and Division of Cardiology, Department of Medicine, Taipei Veterans General Hospital, Taipei, Taiwan.,Department of Medicine, National Yang-Ming University School of Medicine, Taipei, Taiwan.,Division of Cardiology, Taichung Veterans General Hospital, Taichung, Taiwan
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8
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Delinière A, Baranchuk A, Giai J, Bessiere F, Maucort-Boulch D, Defaye P, Marijon E, Le Vavasseur O, Dobreanu D, Scridon A, Da Costa A, Delacrétaz E, Kouakam C, Eschalier R, Extramiana F, Leenhardt A, Burri H, Winum PF, Taieb J, Bouet J, Fauvernier M, Rosianu H, Carabelli A, Duband B, Chevalier P. Prediction of ventricular arrhythmias in patients with a spontaneous Brugada type 1 pattern: the key is in the electrocardiogram. Europace 2020; 21:1400-1409. [PMID: 31177270 DOI: 10.1093/europace/euz156] [Citation(s) in RCA: 13] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/10/2018] [Accepted: 05/15/2019] [Indexed: 01/14/2023] Open
Abstract
AIMS There is currently no reliable tool to quantify the risks of ventricular fibrillation or sudden cardiac arrest (VF/SCA) in patients with spontaneous Brugada type 1 pattern (BrT1). Previous studies showed that electrocardiographic (ECG) markers of depolarization or repolarization disorders might indicate elevated risk. We aimed to design a VF/SCA risk prediction model based on ECG analyses for adult patients with spontaneous BrT1. METHODS AND RESULTS This retrospective multicentre international study analysed ECG data from 115 patients (mean age 45.1 ± 12.8 years, 105 males) with spontaneous BrT1. Of these, 45 patients had experienced VF/SCA and 70 patients did not experience VF/SCA. Among 10 ECG markers, a univariate analysis showed significant associations between VF/SCA and maximum corrected Tpeak-Tend intervals ≥100 ms in precordial leads (LMaxTpec) (P < 0.001), BrT1 in a peripheral lead (pT1) (P = 0.004), early repolarization in inferolateral leads (ER) (P < 0.001), and QRS duration ≥120 ms in lead V2 (P = 0.002). The Cox multivariate analysis revealed four predictors of VF/SCA: the LMaxTpec [hazard ratio (HR) 8.3, 95% confidence interval (CI) 2.4-28.5; P < 0.001], LMaxTpec + ER (HR 14.9, 95% CI 4.2-53.1; P < 0.001), LMaxTpec + pT1 (HR 17.2, 95% CI 4.1-72; P < 0.001), and LMaxTpec + pT1 + ER (HR 23.5, 95% CI 6-93; P < 0.001). Our multidimensional penalized spline model predicted the 1-year risk of VF/SCA, based on age and these markers. CONCLUSION LMaxTpec and its association with pT1 and/or ER indicated elevated VF/SCA risk in adult patients with spontaneous BrT1. We successfully developed a simple risk prediction model based on age and these ECG markers.
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Affiliation(s)
- Antoine Delinière
- Service de Rythmologie, Centre National de Référence des Troubles du Rythme Cardiaque Héréditaires de Lyon, Hôpital Cardiologique Louis Pradel, Hospices Civils de Lyon, Avenue du Doyen Jean Lépine, 69500 Bron, France & Université de Lyon, Lyon, France
| | | | - Joris Giai
- Service de Biostatistiques et Bioinformatique, Hospices Civils de Lyon, Lyon, France.,Université de Lyon, Université Lyon 1, CNRS, UMR 5558, Laboratoire de Biométrie et Biologie Evolutive, Equipe Biostatistique-Santé, Villeurbanne, France
| | - Francis Bessiere
- Service de Rythmologie, Centre National de Référence des Troubles du Rythme Cardiaque Héréditaires de Lyon, Hôpital Cardiologique Louis Pradel, Hospices Civils de Lyon, Avenue du Doyen Jean Lépine, 69500 Bron, France & Université de Lyon, Lyon, France
| | - Delphine Maucort-Boulch
- Service de Biostatistiques et Bioinformatique, Hospices Civils de Lyon, Lyon, France.,Université de Lyon, Université Lyon 1, CNRS, UMR 5558, Laboratoire de Biométrie et Biologie Evolutive, Equipe Biostatistique-Santé, Villeurbanne, France
| | - Pascal Defaye
- Service de Rythmologie, Département de Cardiologie, CHU de Grenoble, Grenoble, France
| | - Eloi Marijon
- Département de Cardiologie, Hôpital Européen Georges Pompidou, Paris, France
| | | | - Dan Dobreanu
- Department of Physiology, University of Medicine and Pharmacy of Târgu Mureș, Târgu Mureș, Romania
| | - Alina Scridon
- Department of Physiology, University of Medicine and Pharmacy of Târgu Mureș, Târgu Mureș, Romania
| | - Antoine Da Costa
- Pôle Cardiovasculaire, CHU de Saint-Etienne, Saint-Etienne, France
| | | | - Claude Kouakam
- Unité de Rythmologie, Hôpital Cardiologique, CHU de Lille, Lille, France
| | - Romain Eschalier
- Département de Cardiologie, Hôpital Gabriel Montpied, CHU de Clermont-Ferrand, Clermont-Ferrand, France
| | - Fabrice Extramiana
- CNMR, Maladies Cardiaques Héréditaires Rares, Hôpital Bichat, Paris, France
| | - Antoine Leenhardt
- CNMR, Maladies Cardiaques Héréditaires Rares, Hôpital Bichat, Paris, France
| | - Haran Burri
- Service de Cardiologie, Hôpitaux Universitaires de Genève, Genève, Suisse
| | | | - Jérôme Taieb
- Service de Cardiologie, Centre Hospitalier du Pays d'Aix, Aix-en-Provence, France
| | - Jérôme Bouet
- Service de Cardiologie, Centre Hospitalier du Pays d'Aix, Aix-en-Provence, France
| | - Mathieu Fauvernier
- Service de Biostatistiques et Bioinformatique, Hospices Civils de Lyon, Lyon, France.,Université de Lyon, Université Lyon 1, CNRS, UMR 5558, Laboratoire de Biométrie et Biologie Evolutive, Equipe Biostatistique-Santé, Villeurbanne, France
| | - Horia Rosianu
- Department of Cardiology, Niculae Stancioiu Heart Institute, Cluj-Napoca, Romania
| | - Adrien Carabelli
- Service de Rythmologie, Département de Cardiologie, CHU de Grenoble, Grenoble, France
| | - Benjamin Duband
- Département de Cardiologie, Hôpital Gabriel Montpied, CHU de Clermont-Ferrand, Clermont-Ferrand, France
| | - Philippe Chevalier
- Service de Rythmologie, Centre National de Référence des Troubles du Rythme Cardiaque Héréditaires de Lyon, Hôpital Cardiologique Louis Pradel, Hospices Civils de Lyon, Avenue du Doyen Jean Lépine, 69500 Bron, France & Université de Lyon, Lyon, France
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9
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Tse G, Zhou J, Lee S, Liu T, Bazoukis G, Mililis P, Wong ICK, Chen C, Xia Y, Kamakura T, Aiba T, Kusano K, Zhang Q, Letsas KP. Incorporating Latent Variables Using Nonnegative Matrix Factorization Improves Risk Stratification in Brugada Syndrome. J Am Heart Assoc 2020; 9:e012714. [PMID: 33170070 PMCID: PMC7763720 DOI: 10.1161/jaha.119.012714] [Citation(s) in RCA: 23] [Impact Index Per Article: 5.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 12/21/2022]
Abstract
Background A combination of clinical and electrocardiographic risk factors is used for risk stratification in Brugada syndrome. In this study, we tested the hypothesis that the incorporation of latent variables between variables using nonnegative matrix factorization can improve risk stratification compared with logistic regression. Methods and Results This was a retrospective cohort study of patients presented with Brugada electrocardiographic patterns between 2000 and 2016 from Hong Kong, China. The primary outcome was spontaneous ventricular tachycardia/ventricular fibrillation. The external validation cohort included patients from 3 countries. A total of 149 patients with Brugada syndrome (84% males, median age of presentation 50 [38–61] years) were included. Compared with the nonarrhythmic group (n=117, 79%), the spontaneous ventricular tachycardia/ ventricular fibrillation group (n=32, 21%) were more likely to suffer from syncope (69% versus 37%, P=0.001) and atrial fibrillation (16% versus 4%, P=0.023) as well as displayed longer QTc intervals (424 [399–449] versus 408 [386–425]; P=0.020). No difference in QRS interval was observed (108 [98–114] versus 102 [95–110], P=0.104). Logistic regression found that syncope (odds ratio, 3.79; 95% CI, 1.64–8.74; P=0.002), atrial fibrillation (odds ratio, 4.15; 95% CI, 1.12–15.36; P=0.033), QRS duration (odds ratio, 1.03; 95% CI, 1.002–1.06; P=0.037) and QTc interval (odds ratio, 1.02; 95% CI, 1.01–1.03; P=0.009) were significant predictors of spontaneous ventricular tachycardia/ventricular fibrillation. Increasing the number of latent variables of these electrocardiographic indices incorporated from n=0 (logistic regression) to n=6 by nonnegative matrix factorization improved the area under the curve of the receiving operating characteristics curve from 0.71 to 0.80. The model improves area under the curve of external validation cohort (n=227) from 0.64 to 0.71. Conclusions Nonnegative matrix factorization improves the predictive performance of arrhythmic outcomes by extracting latent features between different variables.
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Affiliation(s)
- Gary Tse
- Tianjin Key Laboratory of Ionic-Molecular Function of Cardiovascular disease Department of Cardiology Tianjin Institute of Cardiology Second Hospital of Tianjin Medical University Tianjin P.R. China.,Department of Cardiology The First Affiliated Hospital of Dalian Medical University Dalian China
| | - Jiandong Zhou
- School of Data Science City University of Hong Kong Hong Kong Hong Kong SAR People's Republic of China
| | - Sharen Lee
- Laboratory of Cardiovascular Physiology Chinese University Shenzhen Institute Shenzhen P.R. China
| | - Tong Liu
- Tianjin Key Laboratory of Ionic-Molecular Function of Cardiovascular disease Department of Cardiology Tianjin Institute of Cardiology Second Hospital of Tianjin Medical University Tianjin P.R. China
| | - George Bazoukis
- Second Department of Cardiology Laboratory of Cardiac Electrophysiology Evangelismos General Hospital of Athens Athens Greece
| | - Panagiotis Mililis
- Second Department of Cardiology Laboratory of Cardiac Electrophysiology Evangelismos General Hospital of Athens Athens Greece
| | - Ian C K Wong
- School of Pharmacy University College London London UK.,Department of Pharmacology and Pharmacy University of Hong Kong Pokfulam Hong Kong
| | - Cheng Chen
- Department of Cardiology The First Affiliated Hospital of Dalian Medical University Dalian China
| | - Yunlong Xia
- Department of Cardiology The First Affiliated Hospital of Dalian Medical University Dalian China
| | | | - Takeshi Aiba
- National Cerebral and Cardiovascular Center Osaka Japan
| | - Kengo Kusano
- National Cerebral and Cardiovascular Center Osaka Japan
| | - Qingpeng Zhang
- School of Data Science City University of Hong Kong Hong Kong Hong Kong SAR People's Republic of China
| | - Konstantinos P Letsas
- Second Department of Cardiology Laboratory of Cardiac Electrophysiology Evangelismos General Hospital of Athens Athens Greece
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10
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Nagase S. Risk stratification in Brugada syndrome - Significance of ECG and depolarization abnormality. Int J Cardiol 2019; 303:56-57. [PMID: 31924395 DOI: 10.1016/j.ijcard.2019.12.047] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 12/16/2019] [Accepted: 12/23/2019] [Indexed: 10/25/2022]
Affiliation(s)
- Satoshi Nagase
- Department of Advanced Arrhythmia and Translational Medical Science, National Cerebral and Cardiovascular Center, Osaka, Japan.
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11
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Nagase S, Kamakura T, Kataoka N, Wada M, Yamagata K, Ishibashi K, Inoue YY, Miyamoto K, Noda T, Aiba T, Izumi C, Noguchi T, Yasuda S, Shimizu W, Kamakura S, Kusano K. Low-Voltage Type 1 ECG Is Associated With Fatal Ventricular Tachyarrhythmia in Brugada Syndrome. J Am Heart Assoc 2019; 7:e009713. [PMID: 30571377 PMCID: PMC6404198 DOI: 10.1161/jaha.118.009713] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/26/2022]
Abstract
Background Epicardial mapping can reveal low‐voltage areas on the right ventricular outflow tract in patients with Brugada syndrome with several ventricular fibrillation (VF) episodes. A type 1 ECG is associated with an abnormal electrogram on right ventricular outflow tract epicardium. This study investigated the clinical significance of the amplitude of type 1 ECGs in patients with Brugada syndrome. Methods and Results In 209 patients with Brugada syndrome with a spontaneous type 1 ECG (26 resuscitated from VF, 54 with syncope, and 129 asymptomatic), the amplitude of the ECG in leads exhibiting type 1 was measured among V1 to V3 leads positioned in the standard and upper 1 and 2 intercostal spaces. The number of ECG leads exhibiting type 1 did not differ among groups. The averaged amplitude of type 1 ECG was, however, significantly smaller in the group resuscitated from VF than in the asymptomatic group (P<0.05). Moreover, the minimum amplitude of type 1 ECG was significantly smaller in the group resuscitated from VF than in the group with syncope and the asymptomatic group (P<0.05 and P<0.01, respectively). During follow‐up (56±48 months), VF occurred in 29 patients. Kaplan‐Meier analysis revealed that patients with the minimum amplitude of type 1 ECG lower than or at the median value had a higher incidence of VF (log‐rank test, P<0.01). In multivariate analysis, syncope, past VF episode, and minimum amplitude of type 1 ECG ≤0.8 mV were independent predictors of VF events during follow‐up. Conclusions Low‐voltage type 1 ECG is highly and independently related to fatal ventricular tachyarrhythmia in patients with Brugada syndrome.
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Affiliation(s)
- Satoshi Nagase
- 1 Division of Arrhythmia and Electrophysiology Department of Cardiovascular Medicine National Cerebral and Cardiovascular Center Suita Japan
| | - Tsukasa Kamakura
- 1 Division of Arrhythmia and Electrophysiology Department of Cardiovascular Medicine National Cerebral and Cardiovascular Center Suita Japan
| | - Naoya Kataoka
- 1 Division of Arrhythmia and Electrophysiology Department of Cardiovascular Medicine National Cerebral and Cardiovascular Center Suita Japan
| | - Mitsuru Wada
- 1 Division of Arrhythmia and Electrophysiology Department of Cardiovascular Medicine National Cerebral and Cardiovascular Center Suita Japan
| | - Kenichiro Yamagata
- 1 Division of Arrhythmia and Electrophysiology Department of Cardiovascular Medicine National Cerebral and Cardiovascular Center Suita Japan
| | - Kohei Ishibashi
- 1 Division of Arrhythmia and Electrophysiology Department of Cardiovascular Medicine National Cerebral and Cardiovascular Center Suita Japan
| | - Yuko Y Inoue
- 1 Division of Arrhythmia and Electrophysiology Department of Cardiovascular Medicine National Cerebral and Cardiovascular Center Suita Japan
| | - Koji Miyamoto
- 1 Division of Arrhythmia and Electrophysiology Department of Cardiovascular Medicine National Cerebral and Cardiovascular Center Suita Japan
| | - Takashi Noda
- 1 Division of Arrhythmia and Electrophysiology Department of Cardiovascular Medicine National Cerebral and Cardiovascular Center Suita Japan
| | - Takeshi Aiba
- 1 Division of Arrhythmia and Electrophysiology Department of Cardiovascular Medicine National Cerebral and Cardiovascular Center Suita Japan
| | - Chisato Izumi
- 1 Division of Arrhythmia and Electrophysiology Department of Cardiovascular Medicine National Cerebral and Cardiovascular Center Suita Japan
| | - Teruo Noguchi
- 1 Division of Arrhythmia and Electrophysiology Department of Cardiovascular Medicine National Cerebral and Cardiovascular Center Suita Japan
| | - Satoshi Yasuda
- 1 Division of Arrhythmia and Electrophysiology Department of Cardiovascular Medicine National Cerebral and Cardiovascular Center Suita Japan
| | - Wataru Shimizu
- 2 Department of Cardiovascular Medicine Nippon Medical School Tokyo Japan
| | - Shiro Kamakura
- 1 Division of Arrhythmia and Electrophysiology Department of Cardiovascular Medicine National Cerebral and Cardiovascular Center Suita Japan
| | - Kengo Kusano
- 1 Division of Arrhythmia and Electrophysiology Department of Cardiovascular Medicine National Cerebral and Cardiovascular Center Suita Japan
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12
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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] [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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