Idiopathic Ventricular Premature Contraction and Ventricular Tachycardia: Distribution of the Origin, Diagnostic Algorithm, and Catheter Ablation
نویسندگان
چکیده
منابع مشابه
Catheter ablation of idiopathic right ventricular tachycardia.
C atheter ablation of ventricular tachycardia has become an alternative to pharmacological, electrical, or surgical therapy of severe ventricular tachyarrhythmias. It may be successful in about two thirds of patients with ventricular tachycardia of various origins.1-7 Though catheter ablation of ventricular tachycardia is still an evolving, and thus experimental, technique, it has proven indisp...
متن کاملCatheter ablation of idiopathic ventricular tachycardia.
Idiopathic ventricular arrhythmias can originate from either the endocardial, midmyocardial, or epicardial regions of the heart. The outflow tracts and basal regions of the ventricle tend to be common locations of origin of these tachycardias. The anatomy of this region of the heart is both fascinating and, at times, challenging from a procedural standpoint. The orientation of the outflow tract...
متن کاملCatheter ablation of ventricular tachycardia.
Ventricular tachycardia (VT) most commonly develops in patients with structural heart disease. Myocardial infarction results in collagen replacement interspersed with surviving myocardium, which alters impulse propagation, facilitating re-entry.1 Aside from the postinfarction substrate, scar-mediated VT occurs in patients with nonischemic cardiomyopathy, Chagas disease, sarcoidosis, arrhythmoge...
متن کاملCatheter Ablation of Idiopathic Premature Ventricular Contractions and Ventricular Tachycardias Originating from Right Ventricular Septum
BACKGROUND Idiopathic premature ventricular contractions (PVCs) and ventricular tachycardias (IVTs) originating from the subtricuspid septum and near the His bundle have been reported. However, little is known about the prevalence, distribution, electrocardiographic characteristics and the efficacy of radiofrequency catheter ablation (RFCA) for the ventricular arrhythmias arising from the right...
متن کاملIdiopathic Ventricular Tachycardia of Left Ventricular Origin
Background. The signal-averaged ECG has been used to detect late potentials, and it is considered a noninvasive marker for areas of slow conduction requisite for reentrant arrhythmia. Late potentials are not usually found in patients with idiopathic ventricular tachycardia (VT); nevertheless, fragmented electrograms are often recorded in those patients during endocardial mapping. The purpose of...
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ژورنال
عنوان ژورنال: Journal of Nippon Medical School
سال: 2018
ISSN: 1345-4676,1347-3409
DOI: 10.1272/jnms.2018_85-14