PROGNOSTIC VALUE OF NON-INDUCIBILITY ON OUTCOMES OF VENTRICULAR TACHYCARDIA ABLATION: A VENTRICULAR TACHYCARDIA ABLATION VS. ENHANCED DRUG THERAPY IN STRUCTURAL HEART DISEASE (VANISH) SUBSTUDY

2017 ◽  
Vol 33 (10) ◽  
pp. S17-S18 ◽  
Author(s):  
V. Essebag ◽  
J. Joza ◽  
S. Doucette ◽  
J. Raymond ◽  
J. Sapp ◽  
...  
ESC CardioMed ◽  
2018 ◽  
pp. 2288-2293
Author(s):  
Victor Bazan ◽  
Enrique Rodriguez-Font ◽  
Francis E. Marchlinski

Around 10% of ventricular arrhythmias (VA) occur in the absence of underlying structural heart disease. These so-called ‘idiopathic’ VAs usually have a benign clinical course. Only rarely do these “benign” arrhythmias trigger polymorphic ventricular tachycardia (PVT) and idiopathic ventricular fibrillation (VF). Due to their focal origin and to the absence of underlying myocardial scar, the 12-lead ECG very precisely establishes the right (RV) or left (LV) ventricular site of origin of the arrhythmia and can help regionalizing the origin of VT for ablation. A 12-lead ECG obtained during the baseline rhythm and 24-hour ECG Holter monitoring are indicated in order to identify structural or electrical disorders leading to PVT/VF and to determine the VA burden. The most frequent origin of idiopathic VAs is the RV outflow tract (OT). Other origins include the LVOT, the LV fascicles (fascicular VTs), the LV and RV papillary muscles, the crux cordis, the mitral and tricuspid annuli and the RV moderator band. Recognizing the typical anatomic sites of origin combined with a 12 lead ECG assessment facilitates localization.  Antiarrhythmic drug therapy (including use of beta-blockers) or catheter ablation may be indicated to suppress or eliminate idiopathic VAs, particularly upon severe arrhythmia-related symptoms or if the arrhythmia burden is high and ‘tachycardia’-induced cardiomyopathy is suspected. Catheter ablation is frequently preferred to prevent lifelong drug therapy in young patients.


2011 ◽  
Vol 22 (10) ◽  
pp. 1123-1128 ◽  
Author(s):  
DAVID S. FRANKEL ◽  
STAVROS E. MOUNTANTONAKIS ◽  
MELISSA R. ROBINSON ◽  
ERICA S. ZADO ◽  
DAVID J. CALLANS ◽  
...  

2017 ◽  
Vol 6 (3) ◽  
pp. 118 ◽  
Author(s):  
Adam J Graham ◽  
Michele Orini ◽  
Pier D Lambiase ◽  
◽  
◽  
...  

Recurrent episodes of ventricular tachycardia in patients with structural heart disease are associated with increased mortality and morbidity, despite the life-saving benefits of implantable cardiac defibrillators. Reducing implantable cardiac defibrillator therapies is important, as recurrent shocks can cause increased myocardial damage and stunning, despite the conversion of ventricular tachycardia/ventricular fibrillation. Catheter ablation has emerged as a potential therapeutic option either for primary or secondary prevention of these arrhythmias, particularly in post-myocardial infarction cases where the substrate is well defined. However, the outcomes of catheter ablation of ventricular tachycardia in structural heart disease remain unsatisfactory in comparison with other electrophysiological procedures. The disappointing efficacy of ventricular tachycardia ablation in structural heart disease is multifactorial. In this review, we discuss the issues surrounding this and examine the limitations of current mapping approaches, as well as newer technologies that might help address them.


2015 ◽  
Vol 4 (3) ◽  
pp. 177 ◽  
Author(s):  
Jackson J Liang ◽  
Pasquale Santangeli ◽  
David J Callans ◽  
◽  
◽  
...  

Ventricular tachycardia (VT) often occurs in the setting of structural heart disease and can affect patients with ischaemic or nonischaemic cardiomyopathies. Implantable cardioverter-defibrillators (ICDs) provide mortality benefit and are therefore indicated for secondary prevention in patients with sustained VT, but they do not reduce arrhythmia burden. ICD shocks are associated with increased morbidity and mortality, and antiarrhythmic medications are often used to prevent recurrent episodes. Catheter ablation is an effective treatment option for patients with VT in the setting of structural heart disease and, when successful, can reduce the number of ICD shocks. However, whether VT ablation results in a mortality benefit remains unclear. We aim to review the long-term outcomes in patients with different types of structural heart disease treated with VT ablation.


2014 ◽  
Vol 3 (3) ◽  
pp. 161 ◽  
Author(s):  
Mouhannad M Sadek ◽  
Robert D Schaller ◽  
Gregory E Supple ◽  
David S Frankel ◽  
Michael P Riley ◽  
...  

Scar-related reentry is the most common mechanism of monomorphic ventricular tachycardia (VT) in patients with structural heart disease. Catheter ablation has assumed an increasingly important role in the management of VT in this setting, and has been shown to reduce VT recurrence and implantable cardioverter defibrillator (ICD) shocks. The approach to mapping and ablation will depend on the underlying heart disease etiology, VT inducibility and haemodynamic stability. This review explores pre-procedural planning, approach to ablation of both mappable and unmappable VT, and post-procedural testing. Future developments in techniques and technology that may improve outcomes are discussed.


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