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3 years ago
Although atrial fibrillation (AF) is considered the most common arrhythmia in clinical practice, its prevalence is relatively low in the young and middle-aged, ranging from 0.5 % in men below 40 years to 1 % by 60 years.1,2 Regular exercise is proposed as a powerful tool for the primary and secondary prevention of cardiovascular disease, reducing most of the risk factors that predispose to AF,…
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1 year ago
Added:
3 years ago
Estimation of Prognosis Using HRV
The association of heart rate variability (HRV) and prognosis, both for all-cause and cardiovascular (CV) mortality, has been studied using ECG at rest, with exercise and in the ambulatory setting. A meta-analysis by Hillebrand and colleagues found that, using both resting and ambulatory ECG monitoring, lower HRV is associated with a 32–45% increased risk of…
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3 years ago
Arrhythmogenic right ventricular dysplasia/cardiomyopathy (ARVD/C) is a rare heritable cardiomyopathy characterised by fibro-fatty replacement of the myocardium, which predisposes patients to frequent lifethreatening ventricular arrhythmias and slowly progressive ventricular dysfunction.1,2 Structural involvement of the right ventricle (RV) generally predominates,3,4 although left dominant forms…
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3 years ago
Monomorphic ventricular arrhythmias (MMVA) are not uncommon in athletes,1,2 yet their presence appropriately raises concern among practitioners for possible increased risk of sudden cardiac death (SCD) during sports activity and competition. While all MMVA detected in athletes warrant further evaluation,1 a majority of MMVA in this population are likely to be benign. In some instances of so…
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3 years ago
Congenital long QT syndrome (LQTS) is an inherited cardiac ion channelopathy characterised by a variable degree of QT interval prolongation on ECG and an increased susceptibility to life-threatening ventricular arrhythmias (torsades de pointes and ventricular fibrillation) in the absence of morphological cardiac disease.
LQTS is estimated to affect one in 2,000 individuals.1 It is usually…
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Added:
3 years ago
Added:
3 years ago
Arrhythmogenic cardiomyopathy (ACM) is usually referred to as arrhythmogenic right ventricular cardiomyopathy/dysplasia (ARVC/D).1A first historical description was made in 1736, whereas its first modern description dates back to 1982.2 Initially, ACM was thought to be an embryological malformation.3 Yet in recent years it became evident that the pathophysiology of an ongoing genetically…
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Added:
3 years ago
The term ‘flutter’ was coined to designate the visual and tactile rapid, regular atrial contraction induced by faradic stimulation in animal hearts, in contrast with irregular, vermiform contraction in atrial fibrillation (AF).1,2 On the ECG, flutter was a regular continuous undulation between QRS complexes at a cycle length (CL) of ≤250 ms (≥240 bpm). Slower tachycardias displaying discrete P…
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Pasquale Vergara
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Job title: Consultant M.D.
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