results: the average of dyssynchrony in eight cycles showed a positive correlation with dyssynchrony in target beat rr1/rr2 = 1. average of dyssynchrony in target beat was 46.77 msec, and average of 8 cycle was = 47.701, (p value = 0.776, pearson linear correlation 0.769). objectives: we proposed to evaluate intraventricular mechanical dyssynchrony by measuring time-to-peak systolic velocity be...

background: atrial fibrillation (af) after coronary artery bypass graft (cabg) is a common complication with potentially higher risk of adverse outcome and prolonged hospital stay. objective: to determine the impact of postoperative af (poaf) on long-term outcome in a large cohort of patients who underwent cabg. patients and methods: we conducted an observational cohort study of 989 patients wh...

we are presenting a case illustrating atrial fibrillation (af) following the use of methylprednisolone in a patient with pelvic and femur fracture. a 48- year- old man with no significant past medical history, was admitted to the emergency department after injury in a car accident. he suffered a multiple bone fracture with chief complaints of pain and shortness of breath. he was transferred to ...

introduction left atrial thrombi are present in one third of patients with severe rheumatic mitral stenosis and atrial fibrillation. a left atrial mass can be diagnosed as a thrombus by transthoracic echocardiography in the presence of the predisposing factors for a thrombus such as mitral stenosis and atrial fibrillation. the sensitivity of transthoracic echocardiography for detecting left atr...

Fibrillation is a hazardous phenomenon in cardiac muscle and so any new work towards the understanding of this process is important to the development of new methods in diagnosis and therapy. In this work we have used surface and intra cardiac ECGs of patients with chronic atrial fibrillation (AF). By means of the blind source separation (BSS) algorithm, which is a well-known method in signal p...

renal dysfunction is a risk marker in patients who candidate for coronary artery bypass graft (cabg). renal disorder is associated with prolonged stays in intensive care unit and hospital, morbidity and mortality. aim of this study is specific evaluation of association between preoperative creatinine (cr) with atrial fibrillation (af) after elective off-pump cabg in non-diabetic male patients w...

Objective: In ventricular arrhythmias, due to their free radical scavenging action, antioxidant agents are usually used in the treatment of cardiovascular disease. Since stress is considered as risk factor for increased mortality by causing malignant arrhythmias, the study was designed to evaluate the cardioprotective effects of ellagic acid (EA) on CaCl2-induced arrhythmias in rat stress model...

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...