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Author(s):
David J Sprenkeler
,
Marc A Vos
Added:
3 years ago
The concept of post-extrasystolic potentiation (PESP), which describes the phenomenon of increased contractility of the beat following an extrasystole, has intrigued physiologists and clinicians for more than 120 years. Since its first description in 1885 by Oskar Langendorff,1 PESP has become a widely debated concept, not only for its fundamental basis but also because of the potential…
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Cardiac Pacing in Reflex Syncope
Author(s):
Marco Tomaino
,
Vincenzo Russo
,
Daniele Giacopelli
,
et al
Added:
2 years ago
Article
Author(s):
Alexander Steger
,
Daniel Sinnecker
,
Petra Barthel
,
et al
Added:
3 years ago
In 1885, Oscar Langendorff was the first person to describe the increase in contractility (‘Pulsverstärkung‘) that follows an extrasystole.1Langendorff experimented with spontaneously beating isolated frog hearts. He recorded the heartbeats by using a lever that transferred the contractile movements of the heart to a rotating drum. Electrical stimulation resulted in premature contractions that…
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Author(s):
Antonio Zaza
,
Carlotta Ronchi
,
Gabriella Malfatto
Added:
3 years ago
The incidence of ventricular arrhythmias is often related, within an individual, to the rate of their underlying sinus rhythm (heart rate). The direction of this relationship is generally considered to entail some prognostic significance: whereas ectopic activity suppressed by tachycardia is assumed to be benign, an arrhythmia enhanced by tachycardia is regarded with more concern. Is this…
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Author(s):
Agnieszka Smoczynska
,
Henriëtte DM Beekman
,
Marc A Vos
Added:
3 years ago
The plasticity of the heart enables it to adapt to certain pathological insults and to maintain the cardiac output necessary to satisfy the metabolic requirements of the body.1 Although beneficial at first, this process of ventricular remodelling can have detrimental effects on cardiac function and contribute to arrhythmogenesis.2 Sudden cardiac death due to ventricular tachyarrhythmias accounts…
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