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Author(s):
Akihiko Nogami
Added:
3 years ago
No apparent structural abnormality is identified in approximately 10% of all sustained monomorphic ventricular tachycardias (VTs) in the US1 and in 20% of those in Japan.2 These VTs are referred to as ‘idiopathic’. Idiopathic VTs usually occur in specific locations and have specific QRS morphologies, whereas VTs associated with structural heart disease have a QRS morphology that tends to indicate…
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Author(s):
Akihiko Nogami
Added:
3 years ago
No apparent structural abnormality is identified in approximately 10% of all sustained monomorphic ventricular tachycardias (VTs) in the US1 and in 20% of those in Japan.2 These VTs are referred to as 'idiopathic'. Idiopathic VTs usually occur in specific locations and have specific QRS morphologies, whereas VTs associated with structural heart disease have a QRS morphology that tends to indicate…
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Author(s):
Raphael K Sung
,
Penelope A Boyden
,
Satoshi Higuchi
,
et al
Added:
2 years ago
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…
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Author(s):
Josef Kautzner
,
Petr Peichl
Added:
3 years ago
The origin of idiopathic ventricular tachycardia (VT) or symptomatic premature ventricular contractions (PVCs) from papillary muscle (PM) was first described in 2008 as a distinct clinical syndrome by a group from Birmingham, Alabama, US.1 Out of 290 patients ablated for idiopathic VT or symptomatic PVCs, seven patients were recognised who had the ablation site at the base of the posteromedial PM…
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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…
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Author(s):
Irina Suman-Horduna
,
Sonya Babu-Narayan
,
Sabine Ernst
Added:
3 years ago
Catheter ablation has moved from ablation of ‘simple’ substrates like accessory pathways,1 atrioventricular nodal re-entrant tachycardias (AVNRTs)2 and re-entrant or focal tachycardia (of either ventricular or atrial origin)3–5 in recent years to more complex arrhythmias such as atrial or ventricular tachycardia (VT) or fibrillation.6–8 Even patients with complex congenital heart disease that may…
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Author(s):
Bich Lien Nguyen
,
Jose L Merino
,
Eli S Gang
Added:
3 years ago
Catheter ablation has become the curative treatment for various cardiac arrhythmias. Extending the indications from simple supraventricular tachycardias to complex arrhythmias such as ventricular tachycardia or atrial fibrillation (AF) has led to more challenging procedures. These procedures have prolonged fluoroscopy exposure and the need for stable and reproducible catheter movement. Therefore,…
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Author(s):
Ethan R Ellis
,
Mark E Josephson
Added:
3 years ago
Cardiomyopathies are heterogeneous heart muscle disorders with a wide range of aetiologies and clinical manifestations. They are often defined by their causes (i.e. hypertension, prior myocardial infarction, valvular heart disease), although current major society definitions describe cardiomyopathy as the presence of abnormal myocardial structure and/or function in the absence of underlying…
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Wide Complex Tachycardia
Author(s):
John B Garner
,
John M Miller
Added:
3 years ago
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