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Author(s):
Jackson J Liang
,
Yasuhiro Shirai
,
Aung Lin
,
et al
Added:
3 years ago
Idiopathic ventricular arrhythmias (VAs) are comprised of ventricular premature depolarisations, non-sustained ventricular tachycardia (VT)and rarely sustained VT, and these typically occur in the absence of structural heart disease. In general, idiopathic VAs tend to have a benign prognosis, although a high burden of VAs can result in left ventricular (LV) systolic dysfunction and cardiomyopathy…
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Author(s):
Marco V Mariani
,
Agostino Piro
,
Domenico G Della Rocca
,
et al
Added:
2 years ago
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):
Ahran D Arnold
,
Nadine Ali
,
Daniel Keene
,
et al
Added:
3 years ago
Dear Sir,
We read Dr Zografos’ response to our article1 with interest. He agrees with the findings of our review but highlights two important issues for further discussion, which we address below.
Right ventricular lead position
Dr Zografos points out that randomised comparisons of different right ventricular lead positions have not shown superiority of septal pacing over apical pacing.2 This…
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Author(s):
David J Callans
Added:
3 years ago
Premature ventricular contractions (PVCs) are very common cardiac arrhythmias, detected on up to 75% of Holter monitors of ambulatory patients.1 Although PVCs in the setting of advanced structural heart disease have independent negative prognostic implications,2 the majority of PVCs are quite benign, associated with neither symptoms nor signals of future harm. For an important minority, PVCs…
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Author(s):
Shohreh Honarbakhsh
,
Rui Providencia
,
Pier D Lambiase
Added:
3 years ago
Brugada syndrome (BrS) remains one of the most common inherited channelopathies associated with an increased risk of sudden cardiac death (SCD), with a worldwide prevalence of approximately 0.05%.1–3 It is accepted that appropriate utilisation of the ICD in high-risk patients with aborted SCD and haemodynamically compromising arrhythmias is life-saving. However, there remains a lack of consensus…
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Author(s):
Jorge G Panizo
,
Sergio Barra
,
Greg Mellor
,
et al
Added:
3 years ago
Premature ventricular complexes (PVCs) are the most common ventricular arrhythmia. Their prognostic significance cannot be interpreted without considering the presence or absence of any associated underlying cardiac condition. In the absence of structural heart disease, PVCs were generally considered to be benign.1,2 In the 1970s and 1980s, it was postulated that frequent PVCs could be a trigger…
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Author(s):
Carlo Pappone
,
Vincenzo Santinelli
Added:
3 years ago
Historical Precedents
Brugada syndrome (BrS) was first described more than 25 years ago as a clinical entity in people resuscitated from sudden cardiac death due to documented VF.1 The original 1992 case series described eight patients without apparent structural heart disease who all had VF associated with persistent coved ST-segment elevation in the right precordial leads.1 In 1996 this…
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Author(s):
Giulio Conte
,
Maria Luce Caputo
,
François Regoli
,
et al
Added:
3 years ago
General understanding of early repolarisation (ER) has dramatically changed in the last decade. For several years, ER has been considered a benign electrocardiographic (ECG) finding with high prevalence in the general population. Recently different studies have challenged this view and showed a significant association with life-threatening arrhythmias.1–5
In 2008 Haïssaguerre et al. first…
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Author(s):
Simon Ermakov
,
Melvin Scheinman
Added:
3 years ago
Arrhythmogenic right ventricular cardiomyopathy (ARVC) is an inherited cardiomyopathy characterised by progressive replacement of the ventricular myocardium by fibrofatty tissue.1 Patients with the disease are predisposed to ventricular arrhythmias, heart failure and sudden cardiac death.
Pathophysiology
ARVC has a strong genetic basis with most disease variants displaying an autosomal dominant…
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