T‐Wave Amplitude Variability and the Risk of Death in Chagas Disease

T‐Wave Amplitude Variability in Chagas Disease. Introduction: Measurement of beat‐to‐beat T‐wave amplitude variability (TWV) has been described as a promising new technique for the stratification of arrhythmic risk in postmyocardial infarction and dilated cardiomyopathy patients. Chagas disease (ChD) can lead to a potentially lethal cardiopathy that can present with ventricular arrhythmias, heart blocks, heart failure, and sudden death. The aim of the study was to evaluate the prognostic value of TWV in ChD patients in addition to traditional prognostic predictors.

[1]  J. Nadal,et al.  Time-frequency analysis of microvolt T-wave alternans in chronic Chagas heart disease. , 2011, International journal of cardiology.

[2]  Antoine Leenhardt,et al.  Beat-to-beat T-wave amplitude variability in the long QT syndrome. , 2010, Europace : European pacing, arrhythmias, and cardiac electrophysiology : journal of the working groups on cardiac pacing, arrhythmias, and cardiac cellular electrophysiology of the European Society of Cardiology.

[3]  T. Nieminen,et al.  Usefulness of T‐Wave Alternans in Sudden Death Risk Stratification and Guiding Medical Therapy , 2010, Annals of noninvasive electrocardiology : the official journal of the International Society for Holter and Noninvasive Electrocardiology, Inc.

[4]  A. Ribeiro,et al.  Chagas cardiomyopathy--where do we stand after a hundred years? , 2010, Progress in cardiovascular diseases.

[5]  G. Nickenig,et al.  T‐Wave Variability Detects Abnormalities in Ventricular Repolarization: A Prospective Study Comparing Healthy Persons and Olympic Athletes , 2009, Annals of noninvasive electrocardiology : the official journal of the International Society for Holter and Noninvasive Electrocardiology, Inc.

[6]  C.J.H. Mann,et al.  Clinical Prediction Models: A Practical Approach to Development, Validation and Updating , 2009 .

[7]  Takanori Ikeda,et al.  Time-domain T-wave alternans measured from Holter electrocardiograms predicts cardiac mortality in patients with left ventricular dysfunction: a prospective study. , 2009, Heart rhythm.

[8]  I. Zupan,et al.  T‐Wave Variability as a Risk Stratifier in Patients with Dilated Cardiomyopathy , 2009, Pacing and clinical electrophysiology : PACE.

[9]  S. Hohnloser,et al.  The ABCD (Alternans Before Cardioverter Defibrillator) Trial: strategies using T-wave alternans to improve efficiency of sudden cardiac death prevention. , 2009, Journal of the American College of Cardiology.

[10]  R. Bestetti,et al.  Sudden cardiac death in Chagas' heart disease in the contemporary era. , 2008, International journal of cardiology.

[11]  Federico Lombardi,et al.  Prognostic Value of Signal‐Averaged Electrocardiogram in Chagas Disease , 2008, Journal of cardiovascular electrophysiology.

[12]  D. Rosenbaum,et al.  Mechanisms of arrythmogenic cardiac alternans. , 2007, Europace : European pacing, arrhythmias, and cardiac electrophysiology : journal of the working groups on cardiac pacing, arrhythmias, and cardiac cellular electrophysiology of the European Society of Cardiology.

[13]  Wojciech Zareba,et al.  Repolarization variability in the risk stratification of MADIT II patients. , 2007, Europace : European pacing, arrhythmias, and cardiac electrophysiology : journal of the working groups on cardiac pacing, arrhythmias, and cardiac cellular electrophysiology of the European Society of Cardiology.

[14]  A. Ribeiro,et al.  An update on the management of Chagas cardiomyopathy , 2007, Expert review of anti-infective therapy.

[15]  B. Maciel,et al.  Pathogenesis of Chronic Chagas Heart Disease , 2007, Circulation.

[16]  A. Rassi,et al.  Predictors of Mortality in Chronic Chagas Disease: A Systematic Review of Observational Studies , 2007, Circulation.

[17]  A. Ribeiro,et al.  A risk score for predicting death in Chagas' heart disease. , 2006, The New England journal of medicine.

[18]  A. Hasslocher-Moreno,et al.  Development and validation of a risk score for predicting death in Chagas' heart disease. , 2006, The New England journal of medicine.

[19]  H. Huikuri,et al.  Abnormalities in Fractal Heart Rate Dynamics in Chagas Disease , 2006, Annals of noninvasive electrocardiology : the official journal of the International Society for Holter and Noninvasive Electrocardiology, Inc.

[20]  J Thomas Bigger,et al.  Microvolt T-wave alternans and the risk of death or sustained ventricular arrhythmias in patients with left ventricular dysfunction. , 2006, Journal of the American College of Cardiology.

[21]  F. Lombardi,et al.  Vagal dysfunction in Chagas disease. , 2005, International journal of cardiology.

[22]  Wojciech Zareba,et al.  QT Dynamics and Variability , 2005, Annals of noninvasive electrocardiology : the official journal of the International Society for Holter and Noninvasive Electrocardiology, Inc.

[23]  A. Moss,et al.  QT interval variability and spontaneous ventricular tachycardia or fibrillation in the Multicenter Automatic Defibrillator Implantation Trial (MADIT) II patients. , 2004, Journal of the American College of Cardiology.

[24]  J Thomas Bigger,et al.  Microvolt T-Wave Alternans Distinguishes Between Patients Likely and Patients Not Likely to Benefit From Implanted Cardiac Defibrillator Therapy: A Solution to the Multicenter Automatic Defibrillator Implantation Trial (MADIT) II Conundrum , 2004, Circulation.

[25]  A. Hasslocher-Moreno,et al.  T-wave axis deviation as an independent predictor of mortality in chronic Chagas' disease. , 2004, The American journal of cardiology.

[26]  A. Hasslocher-Moreno,et al.  Prognostic Value of QT Interval Parameters for Mortality Risk Stratification in Chagas' Disease Results of a Long‐Term Follow‐Up Study , 2003, Circulation.

[27]  A. Hasslocher-Moreno,et al.  Electrocardiographic Ventricular Repolarization Parameters in Chronic Chagas' Disease as Predictors of Asymptomatic Left Ventricular Systolic Dysfunction , 2003, Pacing and clinical electrophysiology : PACE.

[28]  Sunil J Rao,et al.  Regression Modeling Strategies: With Applications to Linear Models, Logistic Regression, and Survival Analysis , 2003 .

[29]  A. Ribeiro,et al.  Value of the radiological study of the thorax for diagnosing left ventricular dysfunction in Chagas' disease. , 2003, Arquivos brasileiros de cardiologia.

[30]  A. Ribeiro,et al.  Doppler tissue imaging to assess systolic function in Chagas' disease. , 2003, Arquivos brasileiros de cardiologia.

[31]  F. Lombardi.  Clinical implications of present physiological understanding of HRV components. , 2002, Cardiac electrophysiology review.

[32]  A. Porta,et al.  Power-law behavior of heart rate variability in Chagas' disease. , 2002, The American journal of cardiology.

[33]  A. Porta,et al.  Assessment of the Coupling Between RTapex and RR Interval as an Index of Temporal Dispersion of Ventricular Repolarization , 1998, Pacing and clinical electrophysiology : PACE.

[34]  C. Antunes,et al.  Diagnostic electrocardiography in epidemiological studies of Chagas' disease: multicenter evaluation of a standardized method. , 1998, Revista panamericana de salud publica = Pan American journal of public health.

[35]  Fabio Badilini,et al.  The ISHNE Holter Standard Output File Format , 1998 .

[36]  H. Calkins,et al.  Beat-to-beat QT interval variability: novel evidence for repolarization lability in ischemic and nonischemic dilated cardiomyopathy. , 1997, Circulation.

[37]  G. Breithardt,et al.  Heart rate variability: standards of measurement, physiological interpretation and clinical use. Task Force of the European Society of Cardiology and the North American Society of Pacing and Electrophysiology. , 1996 .

[38]  M. Malik.  Heart rate variability. Standards of measurement, physiological interpretation, and clinical use. Task Force of the European Society of Cardiology and the North American Society of Pacing and Electrophysiology. , 1996, European heart journal.

[39]  L. Bogliolo.  [Anatomie causes of cardiac insufficiency in chronic chagasic cardiopathy (myocarditis) studied in comparison to anatomic causes of cardiac insufficiency in other cardiopathies. Part I]. , 1976, Arquivos brasileiros de cardiologia.