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Wide Complex Tachycardia - Ventricular Tachycardia or Not Ventricular Tachycardia, That Remains the Question
Author(s): John B Garner , John M Miller Added: 3 years ago
A wide complex tachycardia (WCT) is simple enough to define: a cardiac rhythm with a rate >100 beats per minute and a QRS width >120 milliseconds (ms). Unfortunately, beyond this simple definition lies a complex differential diagnosis with prognoses ranging from utterly benign to potentially lethal, requiring treatment strategies ranging from medications to emergent non-sedated… View more

Electrophysiology & Arrhythmia
Atrial Myopathy Underlying Atrial Fibrillation
Author(s): Harold Rivner , Raul D Mitrani , Jeffrey J Goldberger Added: 3 years ago
AF is the most common sustained cardiac rhythm disturbance.1 Worldwide, there is an estimated 33.5 million people with AF as of 2010.2 While there are multiple estimates, the yearly incidence in the US is expected to grow, for example, from 1.2 million cases in 2010 to 2.6 million cases in 2030 and upwards of 6–12 million cases by 2050.1,3 It is associated with increased morbidity and mortality4… View more

Imaging & Diagnostics
Pulsed Field Ablation for Atrial Fibrillation
Author(s): David Schaack , Boris Schmidt , Shota Tohoku , et al Added: 1 year ago

Electrophysiology & Arrhythmia
Author(s): Laurent Roten , Matthew Daly , Patrizio Pascale , et al Added: 3 years ago
With an ageing population and widespread use of implantable cardioverter-defibrillators, physicians are confronted with an increasing number of patients with symptomatic, drug-refractory ventricular tachycardia (VT). Catheter ablation is an important treatment option in the management of patients with structural heart disease and VT.1,2 In many patients, VT can be successfully ablated from the… View more

Electrophysiology & Arrhythmia
Ripple Map of Counterclockwise typical Right Atrial Flutter
Author(s): George D Katritsis , Vishal Luther , Prapa Kanagaratnam , et al Added: 3 years ago
The introduction of cardiac electroanatomic mapping systems in the mid-1990s has permitted investigators to record intracardiac electrograms (EGMs) with accurate spatial localisation in 3D.1 These 3D mapping systems have enabled the display of the cardiac chambers as an anatomical shell upon which voltage, or activation, information can be displayed. Most commonly, colour is used to represent the… View more

Electrophysiology & Arrhythmia
Dynamic High-Density Functional Substrate Mapping In Ventricular Tachycardia Ablation
Author(s): Neil T Srinivasan Added: 3 years ago
Dr Neil Srinivasan (Essex Cardiothoracic Centre, Basildon, UK) evaluates of the role of dynamic substrate changes in facilitating conduction delay and re-entry in ventricular tachycardia (VT) circuits. Recorded remotely from Basildon, 2020. View more

Electrophysiology & Arrhythmia
Author(s): Pasquale Santangeli , Luigi Di Biase , Eloisa Basile , et al Added: 3 years ago
The number of invasive electrophysiological procedures is steadily increasing in Western countries, as techniques advance and the age of the population increases. Gender exerts a profound influence on the epidemiology, pathophysiology and clinical presentation of many cardiac rhythm disorders, and all these factors may affect the outcome of invasive electrophysiological procedures. Disturbingly,… View more

Demographic
Supraventricular Arrhythmias in Adult Congenital Heart Disease
Author(s): Carina Blomström-Lundqvist , Tatjana S Potpara , Helena Malmborg Added: 3 years ago
With the advent of successful surgical repairs and modern diagnostic techniques, an increasing number of patients with congenital heart disease survive to adulthood. Despite these improvements, the surgical corrective atrial incisions performed during childhood lead to subsequent myocardial scarring that have the inherent risk of harbouring substrates for macro-reentrant atrial tachycardias … View more

Electrophysiology & Arrhythmia

Heterogeneous Populations
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
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