Concept

Tachycardie

Publications associées (113)

Atrial Repolarization Alternans in a Chronic Sheep Model of Pacing-Induced Atrial Fibrillation

Jean-Marc Vesin, Florian Jousset, Etienne Pruvot

In pacing-induced models of atrial fibrillation (AF) that mimic atrial high-frequency foci, the increase in AF susceptibility over time is not paralleled by any increase in dispersion of repolarization (DOR). Measurements of effective refractory periods (E ...

2008

Atrial repolarization alternans in a chronic sheep model of pacing-induced atrial fibrillation

Jean-Marc Vesin, Florian Jousset, Etienne Pruvot

2008

Stochastic phase oscillator models for circadian clocks

Felix Naef, Jacques Rougemont

Periodic environments like we experience on the surface of planet earth lead living organisms to evolve molecular anticipation devices known a circadian clocks. The word circadian refers to the period of these oscillations which last about (circa) one day ...

Springer2008

Deletion of peroxisome proliferator-activated receptor-alpha induces an alteration of cardiac functions

Johan Auwerx, Kristina Schoonjans

The peroxisome proliferator-activated receptor-alpha (PPARalpha) plays a major role in the control of cardiac energy metabolism. The role of PPARalpha on cardiac functions was evaluated by using PPARalpha knockout (PPARalpha -/-) mice. Hemodynamic paramete ...

2006

An investigation into therapies for atrial arrythmias using a biophysical model of the human atria

Lam Dang

The most common type of sustained arrhythmia is atrial fibrillation (AF), affecting about 2% of the general population and 8% to 11% of the elderly, more than 65 years of age. The treatment of atrial arrythmia is still based on empirical considerations and ...

EPFL2006

Mathematical modelling of the cardiovascular system and skeletal muscle interaction during exercise

Carlo D'Angelo

In this work we present a mathematical model for the coupling of cardiovascular system and metabolism under sport efforts. Effects such as oxygenation, heart rates, flow rates, blood pressure and mass transfer to tissues will be considered. A special atten ...

ESAIM2005

Temporal lobe epilepsy and postural orthostatic tachycardia syndrome (POTS)

Olaf Blanke

We describe a 20-year-old woman suffering from right temporal epilepsy, behavioral disorder, and a complaint of paroxysmal palpitations accompanied by anxiety. Detailed cardiac evaluation revealed that the palpitations were due to episodes of marked sinus ...

Elsevier2002

Scatter in input impedance spectrum may result from the elastic nonlinearity of the arterial wall

Nikolaos Stergiopoulos, Jean-Jacques Meister, Nico Westerhof

We have examined the role of the nonlinear elastic properties of the arterial wall on the human aortic input impedance obtained at different heart rates and different pressure and flow wave shapes. Pressure and flow were taken from a computer model that pr ...

American Physiological Society1995

Simultaneous ipsilateral and contralateral measurements of vasomotion in conduit arteries of human upper limbs

Nikolaos Stergiopoulos, Jean-Jacques Meister

We investigated the patterns of vasomotion in various conduit arteries of the human arm. The internal diameter of the brachial, radial, ulnar, and digital artery was measured noninvasively in 17 healthy volunteers (aged 24-40 yr), using a high-precision ul ...

American Physiological Society1995

Evaluation of methods for estimation of total arterial compliance

Nikolaos Stergiopoulos, Jean-Jacques Meister, Nico Westerhof

Seven classic and recently proposed methods used for the estimation of total arterial compliance have been evaluated for their accuracy and applicability in different physiological conditions. The pressure and flow data are taken from a computer model that ...

American Physiological Society1995

Graph Chatbot

Chattez avec Graph Search

Posez n’importe quelle question sur les cours, conférences, exercices, recherches, actualités, etc. de l’EPFL ou essayez les exemples de questions ci-dessous.

AVERTISSEMENT : Le chatbot Graph n'est pas programmé pour fournir des réponses explicites ou catégoriques à vos questions. Il transforme plutôt vos questions en demandes API qui sont distribuées aux différents services informatiques officiellement administrés par l'EPFL. Son but est uniquement de collecter et de recommander des références pertinentes à des contenus que vous pouvez explorer pour vous aider à répondre à vos questions.

Connectez-vous pour utiliser Chat avec Graph Search