Regional Entrainment of Atrial Fibrillation
نویسندگان
چکیده
Background. It recently has been demonstrated that during atrial fibrillation, a short and variable excitable gap exists, allowing regional control of atrial fibrillation by local stimulation. In the present study, we visualized the process of excitation during regional entrainment of atrial fibrillation by rapid pacing. Methods and Results. In six open-chest dogs, the excitation of the left atrial free wall was mapped using
منابع مشابه
Regional entrainment of atrial fibrillation studied by high-resolution mapping in open-chest dogs.
BACKGROUND It recently has been demonstrated that during atrial fibrillation, a short and variable excitable gap exists, allowing regional control of atrial fibrillation by local stimulation. In the present study, we visualized the process of excitation during regional entrainment of atrial fibrillation by rapid pacing. METHODS AND RESULTS In six open-chest dogs, the excitation of the left at...
متن کاملAssessment of P-wave indices as atrial fibrillation predictors in psoriasis patients
Background: Psoriasis is a prevalent chronic T cell mediated inflammatory skin disorder. Recent studies have reported an increase in the incidence of arrhythmia in psoriasis patients who run an excessive risk of metabolic syndrome and cardiovascular diseases. P-wave dispersion (PWD) and duration are important electrocardiographic (ECG) markers employed to anticipate the risk of atrial arrhythmi...
متن کاملModulation of extracellular atrioventricular node field potential pattern and ventricular rhythm by morphine in experimental atrial fibrillation in isolated rabbit heart
Introduction: Endorphins are produced by cardiomyocytes, and exert different effects on the heart. The aim of the present study is to assess morphine effects on extracellular atrioventricular (AV) node field potential pattern and ventricular rhythm of isolated rabbit heart during experimental atrial fibrillation (AF). Methods: Effects of different concentrations of morphine (10, 20, 50 and 1...
متن کاملIncidence of Atrial Fibrillation after Coronary Artery Bypass Graft Surgery and Its Risk Factors in Shiraz, Iran during 2017-18
Background and Objectives: Atrial fibrillation is one of the most common disorientations after coronary artery bypass graft surgery and can affect the chance of survival in the first year after surgery. The present study aimed to determine the incidence of atrial fibrillation after coronary artery bypass graft surgery and its risk factors. Methods: This cross-sectional study was performed on...
متن کاملProtective effects of simvastatin on atrioventricular node during simulated experimental atrial fibrillation in vitro
Introduction: Recent evidence has indicated that statins can reduce the incidence of both supraventricular and ventricular arrhythmias with various mechanisms. The primary goal of the present study was to determine direct protective role of simvastatin in modifying concealed conduction and the zone of concealment in a simulated model of atrial fibrillation (AF) in an isolated atrioventricula...
متن کامل