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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…
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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…
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Author(s):
Sebastiaan RD Piers
,
Katja Zeppenfeld
Added:
3 years ago
Over the last 20 years ventricular tachycardia (VT) ablation has evolved from a treatment modality for selected patients withrecurrent haemodynamically tolerated VT (which can be mapped during ongoing arrhythmia), to a therapeutic option for patients with tolerated and untolerated VT using substrate-based ablation strategies.1 The substrate for VT after myocardial infarction (MI) consists of…
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Author(s):
Pok Tin Tang
,
Duc H Do
,
Anthony Li
,
et al
Added:
3 years ago
Ventricular arrhythmias remain a major contributor to cardiac morbidity and mortality worldwide, despite ongoing research and implementation of novel therapeutic interventions. Modern management of patients with ventricular arrhythmias requires a multidisciplinary team approach, especially in complex presentations with a background of multiple medical comorbidities.1,2 Such teams may include…
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Author(s):
Ruairidh Martin
,
Meleze Hocini
,
Michel Haissaguerre
,
et al
Added:
3 years ago
Ventricular tachycardia (VT) in the context of structural heart disease is related to patchy or incomplete scar; usually arising from re-entrant circuits which are dependent on surviving channels of activation through scar tissue.1–3 These protected isthmuses are critical for maintaining VT, and an improved understanding of the characteristics of VT isthmuses is important in guiding strategies…
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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…
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Author(s):
Rahul K Mukherjee
,
Louisa O’Neill
,
Mark D O’Neill
Added:
3 years ago
Recurrent ventricular tachycardia (VT) in patients who have an implantable cardioverter-defibrillator (ICD) with subsequent shocks is associated with reduced quality of life and an adverse prognosis. Pharmacological treatments are associated with significant side-effects. Catheter ablation has been used to reduce the number of ICD therapies in patients with ischaemic and non-ischaemic…
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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):
Roland R Tilz
,
Charlotte Eitel
,
Evgeny Lyan
,
et al
Added:
3 years ago
Ventricular tachycardia (VT) is associated with increased mortality in patients with a history of MI. ICD implantation is currently the standard of care for the prevention of sudden cardiac death, and contributes to a reduction of total mortality.1 Despite effective treatment of ventricular arrhythmias with the use of anti-tachycardia pacing (ATP) or shocks, ICDs do not prevent VT. Furthermore,…
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Author(s):
Mouhannad M Sadek
,
Robert D Schaller
,
Gregory E Supple
,
et al
Added:
3 years ago
Scar-related reentrant ventricular tachycardia (VT) may be present in a variety of structural heart disease (SHD) phenotypes. In this setting, VT circuits are comprised of viable myocytes separated by fibrosis, allowing for the slow conduction needed to facilitate reentry.1,2 Aetiologies of fibrosis include ischaemic heart disease (IHD), inflammatory conditions, infiltrative cardiomyopathy,…
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