OBJECTIVE The angiotensin-converting enzyme gene is one of the most studied candidate genes related to atrial fibrillation. Among the polymorphisms of the angiotensin-converting enzyme gene, the 2350 G/A polymorphism (rs4343) is known to have the most significant effects on the plasma angiotensin-converting enzyme concentration. The aim of the present study was to investigate the association of...

Background. The goal of the report was to study the long-term incidence and the independent predictors for chronic atrial fibrillation and stroke in 507 paced patients with sick sinus syndrome, adjusting for differences in baseline clinical variables with multivariate analysis. Methods and Results. From 1980 to 1989, we implanted 376 dual-chamber, 19 atrial, and 112 ventricular pacemakers to tr...

BACKGROUND The aim of this study was to evaluate the serum soluble semaphorin 4D (sSema4D) in patients with atrial fibrillation and to investigate the relationship of serum sSema4D with left atrial diameter (LAD). MATERIAL AND METHODS We studied a total of 113 patients who were subdivided into paroxysmal and non-paroxysmal (included persistent and permanent) atrial fibrillation groups, respec...

INTRODUCTION Atrial fibrillation and atrial flutter account for one third of hospitalizations due to arrhythmias, determining great social and economic impacts. In Brazil, data on hospital care of these patients is scarce. OBJECTIVE To investigate the arrhythmia subtype of atrial fibrillation and flutter patients in the emergency setting and compare the clinical profile, thromboembolic risk a...

OBJECTIVE To describe the electrocardiographic and electrophysiological findings of new atrial flutter developing in patients taking class IC antiarrhythmic drugs for recurrent atrial fibrillation, and to report the long term results of right atrial isthmus ablation in relation to the ECG pattern of spontaneous atrial flutter. DESIGN Retrospective analysis. SETTING Tertiary care academic ho...

AIMS To assess the effect of experimentally induced atrial fibrillation on coronary flow in humans. METHODS AND RESULTS In 16 patients (10 men, mean age 43+/-13 years) with normal coronary vessels, baseline and hyperaemic blood pressure and Doppler phasic coronary flow velocity were measured, using a 0.014 inch intracoronary Doppler flow wire, during sinus rhythm, experimentally induced atria...

Atrial fibrillation is frequently observed during dialysis Epidemiology and classification of atrial fibrillation sessions. As a rule it stops spontaneously without therapeutic intervention 2–3 h after the dialysis Atrial fibrillation is regarded as the most frequent session [2]. supraventricular cardiac arrhythmia. Its incidence in the adult population is 0.5%. The probability of developing at...

OBJECTIVE To assess long term mortality and identify factors associated with the development of permanent atrial fibrillation after atrioventricular (AV) node ablation for drug refractory paroxysmal atrial fibrillation. DESIGN Retrospective cohort study. SETTING UK tertiary centre teaching hospital. PATIENTS Patients admitted to the University Hospital Birmingham between January 1995 and ...

BACKGROUND Atrial fibrillation is a common heart rhythm disorder in older adults, and its prevalence has increased rapidly in recent years. The health issues associated with atrial fibrillation are not limited to physiological problems, as it also contributes to an increased risk of falls, which may be related to cardiovascular co-morbidities and medication use. The aim of this study was to det...