Anatomical, Electrophysiological and Clinical Considerations, and Mechanisms of Cardiac Arrhythmias | |
Contents | |
Introduction | |
General references recommended | |
Clinical aspects of arrhythmias | |
Definition of arrhythmia | |
Classification | |
Clinical significance and symnptoms | |
Arrhythmias and sudden death | |
Arrhythmias and severe clinical complications:Syncope | |
Arrhythmias and unpleasant, non severe symptoms: palpitations | |
Asymptomatic arrhythmias | |
The importance of the clinical history and physical examination, in thye diagnosis and treatment of arrhythmias | |
The ECG and other techniques | |
Electrocardiographic diagnosis of arrhythmias: preliminary considerations | |
Anatomical and electrophysiological basis | |
Anatomical characteristics | |
Ultrastructural characteristics of cardiac muscle cells | |
Anatomy of specific conduction system | |
Electrophysiological characteristics | |
Slow and fast response cells | |
Ion channels | |
Transmembrane diastolic potential (TDP) and transmembrane action potential (TAP) of slow and fast response cells | |
Automatism | |
Conduction of stimulus | |
Cardiac activation: ExcitationâÇôcontraction coupling | |
From cellular electrogram to ECG in humans | |
Electrophysiological mechanisms | |
Mechanisms responsible for active cardiac arrhythmias | |
Active cardiac arrhythmias with fixed coupling interval | |
Abnormal generation of stimulus | |
Reentry | |
Other mechanisms | |
Active cardiac arrhythmias with variable coupling interval: the parasystole | |
Mechanisms leading to passive arrhythmias | |
Depression of automaticity | |
Depression of conduction | |
Heart block | |
Aberrant conduction | |
Concealed conduction | |
Electrocardiographic diagnosis of arrhythmias | |
Active supraventricular arrhythmias | |
Premature supraventricular complexes | |
Sinus tachycardia | |
Monomorphic atrial tachycardia: due to an ectopic focus (MATâÇôEF) and due to macroreentrey (MATâÇôMR) | |
Junctional reentrant (reciprocating) tachycardia: paroxysmal and incessant | |
AV junctional ectopic tachycardia due to ectopic focus | |
Chaotic atrial tachycardia | |
Atrial fibrillation (AF) | |
Atrial flutter (AFL) | |
Supraventricular tachyarrhythmias and atrialâÇôwave morphology: monomorphic or polymorphic morphology | |
Differential diagnosis of supraventricular arrhythmias with regular RR intervals and narrow QRS | |
Electrocardiographic diagnosis of the paroxysmal supraventricular tachycardias: A sequential approach | |
Active ventricular arrhythmias | |
Premature ventricular complexes | |
Ventricular tachycardias | |
Monomorphic ventricular tachycardia | |
Classical sustained ventricular tachycardia | |
Other monomorphic ventricular tachycardia | |
Polymorphic ventricular tachycardia | |
Ventricular flutter | |
Ventricular fibrillation | |
Passive arrhythmias | |
Escape complex and escape rhythm | |
Sinus bradycardia by depression of the automatism | |
Sinoatrial blocks | |
Atrial blocks | |
Atrioventricular blocks | |
Ventricular blocks | |
Cardiac arrest | |
The pacemakers ECG | |
Clinical, prognostic, and therapeutic implications of the passive arrhythmias | |
Analytical study of arrhythmias | |
Determination of the presence of a dominant rhythm | |
Atrial deflection analysis | |
QRS complex analysis | |
Atrioventricular relationship analysis | |
Premature complexes analysis | |
Pauses analysis | |
Delayed complexes analysis | |
Analysis of the variable morphology complexes | |
Analysis of persistent or repetitive arrhythmias: Bigeminal rhythm | |
Differential diagnosis between arrhythmias under particular conditions | |
The ECG and arrhythmias and risk of sudden death in different heart diseases and situations | |
Ventricular preâÇôexcitation | |
Concept and types of preexcitation | |
WPWâÇô type preexcitation: WPW syndrome | |
Atpical preexcitation | |
Preexcitation type short PR interval | |
Inherited heart diseases | |
Cardiomyopathies | |
Hypertrophic cardiomyopathy | |
Arrhythmogenic right ventricular dysplasia cardiomyopathy | |
Spongiform or non compacted cardiomyopathy | |
Dilated cardiomyopathy | |
Specific conduction system involvement: Lenegre syndrome | |
Ionic channel disorders in the absence of apparent structural heart disease: channelopathies | |
Long QT syndrome | |
Short QT syndrome | |
Brugada syndrome | |
Catecholaminergic polymorphic ventricular tachycardia | |
Atrial fibrillation of genetic origin | |
Familial torsades de pointes ventricular tachycardia | |
Other possible channelopathies | |
Idiopathic ventricular fibrillation | |
Other ECG patterns of risk | |
Severe sinus bradycardia | |
Advanced interatrial block with left atrial retrograde conduction | |
High risk ventricular block | |
Bundle branch block in patients with heart disease | |
Bifascicular block | |
Right bundle branch block plus alternating block in the two divisions of the left bundle branch | |
Alternating bundle branch block | |
Advanced atrioventricular block | |
Presence of ventricular arrhythmias in chronic heart disease patients | |
Acquired long QT | |
Electrical alternans | |
Other electrocardiographic patterns of sudden death risk | |
Early repolarization pattern | |
Other patterns | |
Risk of serious arrhythmias and sudden death in people with normal or nearly normal ECG | |
Arrhythmias in other heart diseases and specific situations | |
Ischemic heart disease | |
Heart failure | |
Valvular heart disease | |
Congenital heart disease | |
Hypertensive heart disease | |
Myocarditis | |
Cor pulmonale | |
Pericardial disease | |
Sudden death in other heart diseases | |
Sudden infant death syndrome | |
Athletes | |
Alcohol intake | |
Special situations | |
Administration of drugs | |
Ionic alterations | |
SleepâÇôdisorder breathing | |
Ventricular arrhythmias and sudden death related to other especific pathologies | |
Sudden death in apparently healthy people | |
Introduction | |
Calculation of sensitivity, specificity and predictive value | |
Diagnostic techniques | |
Holter electrocardiographic monitoring and related techniques: Event analyzer | |
Exercise test | |
The intracavitary ECG and the electrophysiological studies | |
TiltâÇôtable test | |
Analysis of late potentials | |
Body surface potential mapping | |
Other surface techniques to register the electrical cardiac activity: vectorcardiography; amplified and filtering techniques and recording especial leads | |
Other non electrocardiographic techniques | |
Therapeutic techniques | |
Cardioversion | |
Pacemakers: resynchronization therapy (CRT) | |
Automatic implantable cardioverter defibrillator | |
Percutaneous transcatheter ablation | |
Surgery | |
Antiarrhythmic agents: classification, effects on the ECG, relative efficacy,doses and future of AAA | |
Classification of the recommendations for diagnostic and therapeutic procedures, and its level of evidence (AHA/ESC/ACC) | |
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