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Idiopathic Outflow Tract Ventricular Arrhythmia Ablation
Author(s): Jackson J Liang , Yasuhiro Shirai , Aung Lin , et al Added: 3 years ago
Idiopathic ventricular arrhythmias (VAs) are comprised of ventricular premature depolarisations, non-sustained ventricular tachycardia (VT)and rarely sustained VT, and these typically occur in the absence of structural heart disease. In general, idiopathic VAs tend to have a benign prognosis, although a high burden of VAs can result in left ventricular (LV) systolic dysfunction and cardiomyopathy… View more

Electrophysiology & Arrhythmia
Anatomical Consideration in Idiopathic Ventricular Arrhythmia Ablation
Author(s): Takumi Yamada , G Neal Kay Added: 3 years ago
Idiopathic ventricular arrhythmias (IVAs) usually originate from the specific anatomical structures. For the past decade, major IVA origins from both endocardial and epicardial sites have been increasingly recognised (see Table 1).1–3 Catheter ablation of IVAs is usually safe and highly successful, but can sometimes be challenging because of the anatomical obstacles. Therefore, understanding the… View more

Imaging & Diagnostics

Electrophysiology & Arrhythmia
Idiopathic Left Ventricular Tachycardia
Author(s): Hongwu Chen , Kit Chan , Sunny S Po , et al Added: 3 years ago
Ventricular tachycardia (VT) originating from the Purkinje system is the most common type of idiopathic left ventricular tachycardia (ILVT), especially among young Asians.1,2 It usually has a benign course. Research over the past two decades has deepened our understanding of the anatomy of the Purkinje system and the mechanisms of ILVT. This review focuses on the research history and anatomy of… View more

Electrophysiology & Arrhythmia
Electrocardiographic Criteria for Differentiating Left from Right Idiopathic Outflow Tract Ventricular Arrhythmias
Author(s): Marco V Mariani , Agostino Piro , Domenico G Della Rocca , et al Added: 3 years ago

Imaging & Diagnostics

Electrophysiology & Arrhythmia
Arrhythmias from the Right Ventricular Moderator Band: Diagnosis and Management
Author(s): Megan Barber , Jason Chinitz , Roy John Added: 3 years ago
Ventricular arrhythmias are designated idiopathic when demonstrable structural heart disease, significant coronary disease including coronary spasm or genetic arrhythmia syndromes are absent.1 These arrhythmias may be benign but are also a recognised cause of sudden cardiac death. The common form of idiopathic ventricular tachycardia (VT) originates in the ventricular outflow tracts, manifest… View more

Electrophysiology & Arrhythmia
Reentrant Arrhythmias of the His-Purkinje System
Author(s): Raphael K Sung , Penelope A Boyden , Satoshi Higuchi , et al Added: 2 years ago

Electrophysiology & Arrhythmia
Author(s): Eyal Nof , William G Stevenson , Roy John Added: 3 years ago
Sustained ventricular tachycardia (VT) and ventricular fibrillation (VF) are typically a manifestation of significant structural heart disease and often associated with a high risk of sudden cardiac death. Implantable cardioverter defibrillators (ICDs) remain the mainstay of therapy for prevention of sudden cardiac death associated with these arrhythmias.1 However, ICDs treat the arrhythmia after… View more

Electrophysiology & Arrhythmia
Author(s): Josef Kautzner , Petr Peichl Added: 3 years ago
Ventricular fibrillation (VF) is a complex arrhythmia that leads invariably to cardiac arrest. Its mechanisms remain largely unclear. Similar to atrial fibrillation, the mother rotor hypothesis is one plausible alternative.1,2 In larger animals, some authors reported that the dominant frequency of VF could be recorded at a junction of the left ventricular posterior wall and the septum.3-6 Others… View more

Electrophysiology & Arrhythmia

MI/ACS
Author(s): Mario Njeim , Frank Bogun Added: 3 years ago
Percutaneous ablation for ventricular tachycardia (VT) was first attempted in 1983 and has rapidly evolved to become an important option for controlling recurrent VTs.1 Endocardial ablation remained the only percutaneous approach until epicardial access was introduced by Sosa et al. in 1996 and thereafter became progressively more available as an adjunctive strategy for the treatment of… View more

Imaging & Diagnostics

Heart Failure
Early Repolarisation – What Should the Clinician Do?
Author(s): Manoj N Obeyesekere , Andrew D Krahn Added: 3 years ago
Early repolarisation (ER) is defined as J-point elevation of ≥0.1 mV in two adjacent leads with either a slurred or notched morphology (Figures 1 to 4).1,2 Numerous studies have established an association with ER and increased risk of death and idiopathic ventricular fibrillation (VF).1–5 Clinicians face questions such as patient and family counselling, quantitifying the risk of sudden cardiac… View more

Electrophysiology & Arrhythmia