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Author(s): Helen O'Brien , Rose Anne Kenny Added: 3 years ago
One of the greatest achievements of public health in the twentieth century has been the almost doubling of life expectancy in the Western world. Yet this now ageing population brings new challenges, as the prevalence of little-understood geriatric conditions increases, together with the rising prevalence of age-related disorders, such as syncope. The definition of syncope, as outlined by the… View more

Imaging & Diagnostics

Electrophysiology & Arrhythmia
Author(s): Richard Sutton Added: 3 years ago
Syncope in a patient with a pacemaker commands urgent action to ascertain its cause and provide appropriate treatment. This is a well accepted statement but the field has evolved in recent years and, strangely, has received little attention. Many considerations bear on this issue. First, syncope in pacemaker patients is not common but may be more so than generally considered. The lack of… View more

Electrophysiology & Arrhythmia
Cardioneuroablation for Vasovagal Syncope
Author(s): Le Li , Sunny Po , Yan Yao Added: 10 months ago

Electrophysiology & Arrhythmia

Prevention & Chronic Conditions
Author(s): Rakesh Gopinathannair , Benjamin C Salgado , Brian Olshansky Added: 3 years ago
Heart rate and blood pressure are tightly regulated by autonomic control to effect adequate blood flow as needed. This regulatory process breaks down when the vasovagal reflex is activated. Profound, but brief, circulatory collapse manifests as bradycardia (cardioinhibitory response) and/or hypotension (vasodepressor response) and/or altered cerebral autoregulation, resulting in transient loss of… View more

Electrophysiology & Arrhythmia
Author(s): Satish Raj , Robert Sheldon Added: 3 years ago
Syncope and palpitations are two common clinical presentations, and both pose difficulties in the approach to their management. They are both symptoms of a number of syndromes, and an efficient approach with targeted therapy is challenging. Cardiac arrhythmia specialists, who lack a compact and accessible guide to management, see many patients with these symptoms in consultation. Recognising this… View more

Standards & Guidelines

Electrophysiology & Arrhythmia
Author(s): Maria Teresa La Rovere , Roberto Maestri , Gian Domenico Pinna Added: 3 years ago
Arterial baroreceptors play a crucial role in the adjustment of the cardiovascular system to several surrounding conditions. In a simplified paradigm, baroreceptor stimulation results in arterial pressure changes that can modulate both sympathetic and vagal activity and, as a consequence, heart rate and myocardial electrophysiological properties, contractility and vascular resistance. Arterial… View more

Heart Failure
Author(s): Maria Teresa La Rovere , Roberto Maestri , Gian Domenico Pinna Added: 3 years ago
Arterial baroreceptors play a crucial role in the adjustment of the cardiovascular system to several surrounding conditions. In a simplified paradigm, baroreceptor stimulation results in arterial pressure changes that can modulate both sympathetic and vagal activity and, as a consequence, heart rate and myocardial electrophysiological properties, contractility and vascular resistance. Arterial… View more

Heart Failure

Prevention & Chronic Conditions
Author(s): Naomi Abe , John D Bisognano Added: 3 years ago
Hypertension is the most common chronic disease in the US, affecting 29% of the adult population.1 Once considered a benign, compensatory mechanism for ageing, high blood pressure (BP) is now recognised as an important risk factor for cardiovascular disease. It is estimated that inadequate BP control is responsible for 62% of cases of cerebrovascular disease, 49% of cases of ischemic heart… View more

Prevention & Chronic Conditions
Author(s): Naomi Abe , John D Bisognano Added: 3 years ago
Hypertension is the most common chronic disease in the US, affecting 29% of the adult population.1 Once considered a benign, compensatory mechanism for ageing, high blood pressure (BP) is now recognised as an important risk factor for cardiovascular disease. It is estimated that inadequate BP control is responsible for 62% of cases of cerebrovascular disease, 49% of cases of ischemic heart… View more

Electrophysiology & Arrhythmia

Prevention & Chronic Conditions
Author(s): Mark E Josephson Added: 3 years ago
In patients with syncope or episodes of palpitations and heart disease, an electrophysiology study (EPS) may be of value by means of potential induction of sustained ventricular tachyarrhythmias.1,2 Programmed ventricular stimulation may be useful in the context of risk stratification of ischaemic patients with left ventricular ejection fraction (LVEF) 30–40 %, and there has been some evidence… View more

Electrophysiology & Arrhythmia