torsades de pointes

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Torsades de Pointes
Author : James E Tisdale
Publisher : Academic Press
Release Date : 2021-08-01
ISBN 10 : 0128214619
Pages : 310 pages

Over the past 25-30 years, deaths due to Torsades de Pointes (TdP) have resulted in numerous drugs being withdrawn from the market. However, nearly 200 drugs that may prolong the QT interval and cause TdP remain available. A number of drugs with the potential to cause TdP are among the top 200 most prescribed drugs in the US, whilst new information regarding TdP is emerging rapidly. The purpose of this book is to provide a comprehensive source of information on the topic of torsades de pointes (TdP), which is a life-threatening polymorphic ventricular tachyarrhythmia associated with QT interval prolongation on the electrocardiogram (ECG). Torsades de Pointes provides a detailed, up-to-date and emerging information related to the epidemiology, drug culprits, mechanisms, risk factors, and methods of prevention and management of the life-threatening polymorphic ventricular tachycardia, also known as torsades de pointes. The book contains current knowledge, incorporating recent and cutting-edge advances in understanding of topics including inherited channelopathies and congenital LQTS; drugs that cause QT interval prolongation and TdP; non-drug causes of acquired QT interval prolongation and TdP; epidemiology of inherited and acquired TdP; morbidity and mortality associated with TdP, particularly in association with specific antimicrobials, antidepressants and antipsychotics, and methadone; cellular and molecular mechanisms of TdP, traditional and emerging risk factors for TdP; methods of prevention and risk reduction for TdP; and clinical management of patients with TdP. This book is an essential reference for both clinicians and researchers – providing guidance for clinicians who care for patients receiving QT interval-prolonging drugs, as well as cutting edge information for scientists and investigators conducting research in the area. Up-to-date information on TdP associated with inherited channelopathies and the multiple forms of congenital LQTS Includes a wealth of new information emerging regarding TdP, including newly-described risk factors and cellular and molecular mechanisms, contributions of genetic polymorphisms to drug-induced TdP, methods of quantification of risk, and methods of risk reduction, including clinical decision support Contains information on nearly 200 commonly used drugs that have the potential to cause torsades de pointes, including antimicrobials, antipsychotics, antidepressants, antiarrhythmic agents, methadone, and many others An essential reference for clinicians and researchers – provides guidance for clinicians who care for patients receiving QT interval-prolonging drugs, as well as cutting edge information for scientists and investigators conducting research in the area

Acquired Long QT Syndrome
Author : A. John Camm,Marek Malik,Yee Guan Yap
Publisher : John Wiley & Sons
Release Date : 2008-04-15
ISBN 10 : 1405146168
Pages : 208 pages

In recent years there has been considerable interest in the diagnosis and understanding of ventricular repolarisation, particularly the QT interval prolongation and abnormal T and T/U wave morphology associated with torsades de pointes. Advances in ion channel cloning have greatly improved our understanding of the role of ionic channels in mediating cardiac repolarisation. Unfortunately, it is increasingly recognised that a number of drugs, both those associated with altering repolarisation, and others for non-cardiac conditions can increase the propensity for polymorphic ventricular tachycardia, syncope and even ventricular fibrillation and sudden death. In this volume, arrhythmia specialists from St. George’s Hospital Medical School, London discuss the mechanisms behind QT prolongation and torsades de pointes. They focus particularly on the risk of individual cardiac and non-cardiac drugs in provoking long QT syndrome, providing a comprehensive review which will be useful for all electrophysiologists treating polymorphic ventricular tachycardias, and will expose important regulatory issues for pharmaceutical authorities and for the wider medical community.

Safety Pharmacology - Risk Assessment QT Interval Prolongation and Beyond
Author : Esther Pueyo,Blanca Rodriguez
Publisher : Frontiers Media SA
Release Date : 2018-08-16
ISBN 10 : 2889455394
Pages : 329 pages

Current regulatory guidelines for cardiac safety utilize hERG block and QT interval prolongation as risk markers. This strategy has been successful at preventing harmful drugs from being marketed, but criticized for leading to early withdrawal of potentially safe drugs. Here we collected a series of articles presenting new technological and conceptual advances, including refinement of ex vivo and in vitro assays, screens and models, and in silico approaches reflecting the increasing effort that has been put forward by regulatory agencies, industry, and academia to try and address the need of a more accurate, mechanistically-based paradigm of proarrhythmic potential of drugs. This Research Topic is dedicated to the memory of Dr. J. Jeremy Rice, our wonderful friend and colleague.

Sex and Cardiac Electrophysiology
Author : Marek Malik
Publisher : Academic Press
Release Date : 2020-07-11
ISBN 10 : 0128177292
Pages : 1032 pages

Sex and Cardiac Electrophysiology: Differences in Cardiac Electrical Disorders Between Men and Women is a comprehensive investigation into all aspects of sex differences in cardiac electrophysiology. As there are substantial differences between female and male patients in physiology, pathology triggering factors, disease progression, clinical approaches and treatment outcome, this book provides a comprehensive examination. In cardiology, the differences between women and men are more recognized, hence this title summarizes these important differences, providing the essential information needed for clinical specialists and researchers involved in the design and implementation of clinical studies. Explores topics ranging from the physiologic differences between women and men to the differences in clinical handling of arrhythmic disorders between female and male patients Provides sex differences in cardiac electrophysiology in separate chapters Covers the sex differences of cardiac electrical disorders, providing insights beyond cardiac metabolic syndrome, hypertension, atherogenesis and heart failure

Clinical Arrhythmology and Electrophysiology E-Book
Author : Ziad Issa,John M. Miller,Douglas P. Zipes
Publisher : Elsevier Health Sciences
Release Date : 2018-08-07
ISBN 10 : 0323568823
Pages : 752 pages

Part of the highly regarded Braunwald’s family of cardiology references, Clinical Arrhythmology and Electrophysiology, 3rd Edition, offers complete coverage of the latest diagnosis and management options for patients with arrhythmias. Expanded clinical content and clear illustrations keep you fully abreast of current technologies, new syndromes and diagnostic procedures, new information on molecular genetics, advances in ablation, and much more.

Cardiac Repolarization
Author : Nabil El-Sherif
Publisher : Springer Nature
Release Date : 2019-10-24
ISBN 10 : 3030226727
Pages : 354 pages

This book provides a comprehensive, up-to-date overview of clinical and research aspects of cardiac repolarization geared toward practicing cardiologists and physicians. It analyzes elements of pathophysiology and molecular biology as they relate to the clinical aspects of cardiac repolarization, long QT syndromes, early repolarization syndromes, and special cardiac repolarization syndromes. Each chapter examines different aspects of the field with basic and clinical overviews and highlights the impact on medical management. The book covers a variety of repolarization topics including the influence of the autonomic system, racial and gender differences in patients, the future role of stem cells, inflammation and autoimmunity, and cardiovascular risk. Cardiac Repolarization: Basic Science and Clinical Management is an essential resource for physicians and related professionals, residents, fellows, and graduate students in cardiology, clinical cardiac electrophysiology, internal medicine, and cardiovascular biology.

Challenging Cases and Complication Management in Pain Medicine
Author : Magdalena Anitescu,Honorio T. Benzon,Mark S. Wallace
Publisher : Springer
Release Date : 2017-11-17
ISBN 10 : 3319600729
Pages : 346 pages

This comprehensive book provides reviews of pain management complications that arise in clinical practice. Organized into sections focused on types of pain therapy and procedures, each chapter is based on actual complications; starting with a case description that delineates the context with a short past medical and surgical history, pain management technique and outcome it is followed by a comprehensive review of the topic described in the first section. Authors emphasize the elements of differential diagnosis that pointed towards establishing of the complication and describe the best way to treat the identified complication. Physicians treating pain patients will be presented the necessary tools in identifying and treating unanticipated complications following pain interventions, thus providing safer care for their patients.

Cardiac Mapping
Author : Mohammad Shenasa,Gerhard Hindricks,David J. Callans,John M. Miller,Mark E. Josephson
Publisher : John Wiley & Sons
Release Date : 2019-04-04
ISBN 10 : 1119152623
Pages : 1304 pages

The expanded guide to cardiac mapping The effective diagnosis and treatment of heart disease may vitally depend upon accurate and detailed cardiac mapping. However, in an era of rapid technological advancement, medical professionals can encounter difficulties maintaining an up-to-date knowledge of current methods. This fifth edition of the much-admired Cardiac Mapping is, therefore, essential, offering a level of cutting-edge insight that is unmatched in its scope and depth. Featuring contributions from a global team of electrophysiologists, the book builds upon previous editions' comprehensive explanations of the mapping, imaging, and ablation of the heart. Nearly 100 chapters provide fascinating accounts of topics ranging from the mapping of supraventricular and ventriculararrhythmias, to compelling extrapolations of how the field might develop in the years to come. In this text, readers will find: Full coverage of all aspects of cardiac mapping, and imaging Explorations of mapping in experimental models of arrhythmias Examples of new catheter-based techniques Access to a companion website featuring additional content and illustrative video clips Cardiac Mapping is an indispensable resource for scientists, clinical electrophysiologists, cardiologists, and all physicians who care for patients with cardiac arrhythmias.

Diagnostic Molecular Pathology
Author : William B. Coleman,Gregory J. Tsongalis
Publisher : Academic Press
Release Date : 2016-10-05
ISBN 10 : 0128011572
Pages : 582 pages

Diagnostic Molecular Pathology: A Guide to Applied Molecular Testing is organized around disease types (genetic disease, infectious disease, neoplastic disease, among others). In each section, the authors provide background on disease mechanisms and describe how laboratory testing is built on knowledge of these mechanisms. Sections are dedicated to general methodologies employed in testing (to convey the concepts reflected in the methods), and specific description of how these methods can be applied and are applied to specific diseases are described. The book does not present molecular methods in isolation, but considers how other evidence (symptoms, radiology or other imaging, or other clinical tests) is used to guide the selection of molecular tests or how these other data are used in conjunction with molecular tests to make diagnoses (or otherwise contribute to clinical workup). In addition, final chapters look to the future (new technologies, new approaches) of applied molecular pathology and how discovery-based research will yield new and useful biomarkers and tests. Diagnostic Molecular Pathology: A Guide to Applied Molecular Testing contains exercises to test readers on their understanding of how molecular diagnostic tests are utilized and the value of the information that can be obtained in the context of the patient workup. Readers are directed to an ancillary website that contains supplementary materials in the form of exercises where decision trees can be employed to simulate actual clinical decisions. Focuses on the menu of molecular diagnostic tests available in modern molecular pathology or clinical laboratories that can be applied to disease detection, diagnosis, and classification in the clinical workup of a patient Explains how molecular tests are utilized to guide the treatment of patients in personalized medicine (guided therapies) and for prognostication of disease Features an ancillary website with self-testing exercises where decision trees can be employed to simulate actual clinical decisions Highlights new technologies and approaches of applied molecular pathology and how discovery-based research will yield new and useful biomarkers and tests

Chou's Electrocardiography in Clinical Practice E-Book
Author : Borys Surawicz,Timothy Knilans
Publisher : Elsevier Health Sciences
Release Date : 2008-04-22
ISBN 10 : 1437711022
Pages : 752 pages

Widely considered the optimal electrocardiography reference for practicing physicians, and consistently rated as the best choice on the subject for board preparation, this is an ideal source for mastering the fundamental principles and clinical applications of ECG. The 6th edition captures all of the latest knowledge in the field, including expanded and updated discussions of pediatric rhythm problems, pacemakers, stress testing, implantable cardiodefibrillator devices, and much more. It's the perfect book to turn to for clear and clinically relevant guidance on all of today’s ECG applications. Comprehensively and expertly describes how to capture and interpret all normal and abnormal ECG findings in adults and children. Features the expertise of internationally recognized authorities on electrocardiography, for advanced assistance in mastering the subtle but critical nuances of this complex diagnostic modality. Features new chapters on pediatric electrocardiography that explore rhythm problems associated with pediatric obesity, heart failure, and athletic activity. Presents a new chapter on recording and interpreting heart rhythms in patients with pacemakers. Includes new material on interpreting ECG findings associated with implantable cardioverter-defibrillators. Provides fully updated coverage on the increased importance of ECGs in stress testing.

Electrocardiogram in Clinical Medicine
Author : Michael J. Lipinski,Andrew E. Darby,Michael C. Bond,Nathan P. Charlton,Korin Hudson,Kelly Williamson
Publisher : John Wiley & Sons
Release Date : 2020-11-09
ISBN 10 : 1118754557
Pages : 512 pages

Offers a guide for a complete understanding of the disease and conditions most frequently revealed in ECGs recorded in the acute, critical, and emergency care settings Electrocardiogram in Clinical Medicine offers an authoritative guide to ECG interpretation that contains a focus and perspective from each of the three primary areas of medical care: acute care, critical care and emergency care. It can be used as a companion with the book ECGs for the Emergency Physician I & II (by Mattu and Brady) or as a stand-alone text. These three books can be described as a cumulative EGG reference for the medical provider who uses the electrocardiogram on a regular basis. Electrocardiogram in Clinical Medicine includes sections on all primary areas of ECG interpretation and application as well as sections that highlight use, devices and strategies. The medical content covers acute coronary syndromes and all related issues, other diseases of the myocardium, morphologic syndromes, toxicology and paediatrics; dysrhythmias will also be covered in detail. This important resource: • Goes beyond pattern recognition in ECGs to offer a real understanding of the clinical syndromes evidenced in ECGs and implications for treatment • Covers the indications, advantages and pitfalls of the use of ECGs for diagnosis in all acute care settings, from EMS to ED to Critical Care • Examines the ECG in toxic, metabolic and environmental presentations; critical information for acute care clinicians who need to be able to differentiate ODs, poisoning and other environmental causes from MI or other cardiac events • Facilitates clinical decision-making Written for practicing ER, general medicine, family practice, hospitalist and ICU physicians and medical students, Electrocardiogram in Clinical Medicine is an important book for the accurate interpretation of EGG results.

Electrocardiography (ECG)
Author : Jean-Jacques Goy,Jean-Christophe Stauffer,Jürg Schlaepfer,Pierre Christeler
Publisher : Bentham Science Publishers
Release Date : 2013-06-27
ISBN 10 : 1608054799
Pages : 159 pages

This e-book starts with a comprehensive overview of the basic principles in Electrocardiography (ECG) with just enough depth to lift the reader above the crowd when it comes to understanding the physics behind ECG. Subsequent chapters provide an approach to the analysis of the ECG, followed by sections with insight into conduction abnormalities, arrhythmia, and myocardial ischemia. The e-book has a straightforward layout, a very clear format, and abundant ECG tracings for interested readers. The diagnostic algorithms provided in the volume prove to be very useful in daily medical practice. Overall, the e-book will help novice physicians, students and fellows to improve their knowledge in ECG interpretation. Electrocardiography (ECG) is, therefore, a very attractive book for all levels of physicians and health-care professionals interested in ECG and it is a welcome addition to the medical literature.