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Localisation of Posteroseptal Accessory Pathways
Author(s): Mathieu Lebloa , Patrizio Pascale Added: 1 year ago

Electrophysiology & Arrhythmia
Open Window Mapping of Accessory Pathways
Author(s): Rajdip Dulai , Fatima Bangash , Ajay Sharma , et al Added: 4 months ago

Electrophysiology & Arrhythmia
Percutaneous Catheter Ablation of Epicardial Accessory Pathways
Author(s): Eduardo Back Sternick , Mariana Faustino , Frederico Soares Correa , et al Added: 3 years ago
Radiofrequency (RF) catheter ablation is currently the treatment of choice in patients with accessory pathways (APs) and Wolff– Parkinson–White syndrome, and is shown to have a success rate >95 %.1 APs usually have endocardial ventricular and atrial insertions, located close to the atrioventricular valve rings, making most endocardial catheter ablation procedures relatively straightforward and… View more

Electrophysiology & Arrhythmia
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
Differential Diagnosis of Wide QRS Tachycardias
Author(s): Demosthenes G Katritsis , Josep Brugada Added: 3 years ago
The term narrow QRS tachycardia indicates individuals with a QRS duration ≤120 ms, while wide QRS tachycardia refers to tachycardia with a QRS duration >120 ms.1 Narrow QRS complexes are due to rapid activation of the ventricles via the His–Purkinje system, suggesting that the origin of the arrhythmia is above or within the His bundle. However, early activation of the His bundle can also occur… View more

Electrophysiology & Arrhythmia
His–Purkinje Conduction System Pacing: State of the Art in 2020
Author(s): Ahran D Arnold , Zachary I Whinnett , Pugazhendhi Vijayaraman Added: 3 years ago
Right ventricular apical pacing (RVAP) results in dyssynchronous ventricular activation that can lead to impairment of ventricular function. Alternative myocardial pacing sites such as RV septal pacing (RVSP) and RV outflow tract pacing still rely on myocardial cell-to-cell conduction and have not been shown to prevent pacing-induced cardiomyopathy.1 Biventricular pacing (BVP) certainly improves… View more

Electrophysiology & Arrhythmia
Mahaim Revisited
Author(s): Eduardo Back Sternick , Damián Sánchez-Quintana , Hein J Wellens , et al Added: 1 year ago

Electrophysiology & Arrhythmia
Author(s): Ramanan Kumareswaran , Francis E Marchlinski Added: 3 years ago
Ventricular tachycardia (VT) is one of the most challenging medical conditions faced by cardiac patients and physicians treating them. Antiarrhythmic medications have limited effectiveness and are frequently poorly tolerated.1–4 Catheter ablation is increasingly used to treat patients successfully.1,5–7 Most VTs can be ablated endocardially but some require epicardial mapping and ablation… View more

Electrophysiology & Arrhythmia
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): 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