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Author(s): Ian Mann , Belinda Sandler , Nick WF Linton , et al Added: 3 years ago
The discovery of focal ectopy in the pulmonary veins (PVs) initiating AF1 has resulted in electrical isolation of the PVs forming the mainstay of current treatment strategies. Success rates from PV isolation (PVI) for patients with paroxysmal AF (PAF) are approximately 70–75%. However, PVI is significantly less effective for those with persistent AF, in whom many studies quote single-procedure… View more

Electrophysiology & Arrhythmia
Atrioventricular Nodal Reentrant Tachycardia
Author(s): Demosthenes G Katritsis , Mark E Josephson Added: 3 years ago
Atrioventricular nodal reentrant tachycardia (AVNRT) denotes re-entry in the area of the AV node, and represents the most common regular arrhythmia in the human.1 Although several models have been proposed to explain the mechanism of the arrhythmia in the context of the complex anatomy and the anisotropic properties of the atrioventricular (AV) node and its atrial extensions (see Figure 1),2 the… 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
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
Author(s): Charles M Pearman , Shi S Poon , Laura J Bonnett , et al Added: 3 years ago
The goal of arrhythmia eradication in AF continues to be elusive for cardiac electrophysiologists. Although endocardial radiofrequency (RF) catheter ablation is more effective than pharmacological management at maintaining sinus rhythm,1 it is far from perfect, especially in patients with non-paroxysmal AF.2 In an attempt to address this, attention has turned back to the surgical ablation that… View more

Electrophysiology & Arrhythmia
A New Era in Zero X-ray Ablation
Author(s): Giuseppe Mascia , Marzia Giaccardi Added: 3 years ago
X-rays used in interventional cardiology are proven (class I) carcinogens, and the electrophysiology community should make every effort to give “the right imaging exam, with the right dose, to the right patient”.1 This may be an effective strategy for the primary prevention of cancer for physicians, medical staff and patients (particularly children, young adults and women).2 The impact of X-rays… View more

Electrophysiology & Arrhythmia
Chronicle of Hybrid AF Ablation Therapy
Author(s): Riyaz Kaba , Omar Ahmed , Elijah R Behr , et al Added: 1 year ago

Electrophysiology & Arrhythmia
Hybrid Convergent Procedure for Persistent AF
Author(s): David DeLurgio , Jaswinder Gill , Syed Ahsan , et al Added: 2 years ago

Electrophysiology & Arrhythmia
Author(s): Ashok J Shah , Meleze Hocini , Patrizio Pascale , et al Added: 3 years ago
The structural and/or functional abnormality of the cardiac electrovascular system is the most common cause of world mortality accounting for 29.0 % of deaths, followed by infectious diseases (16.2 %) and cancers (12.6 %) (WHO 2008 report). 1 Abnormalities in the cardiac electrical system (arrhythmias and sudden death) and/or mechanical function (heart failure) constitute one of the major causes… View more

Imaging & Diagnostics

Heart Failure
Author(s): Jean-Baptiste Gourraud , Jason G Andrade , Laurent Macle , et al Added: 3 years ago
Atrial fibrillation (AF) is the most common sustained cardiac arrhythmia observed in clinical practice, occurring in approximately 2 % of the general population.1–3 A progressive increase in both the prevalence and incidence of AF has been demonstrated in recent years, defining AF as a major economic and public health issue.1 The identification of sites of AF initiation and/or maintenance within… View more

Electrophysiology & Arrhythmia

Prevention & Chronic Conditions