View clinical trials related to Atrial Fibrillation.
Filter by:To investigate the rate and risk factors of stroke or systemic embolism (SE) following atrial fibrillation (AF) ablation.
A Prospective, Open, Multi-Center, Controlled Study to Evaluate the Safety, Performance and Efficacy of the CardiacSense1 for Detection of Atrial Fibrillation. The clinical study is intended to establish the efficacy and safety of the CardiacSense1 wearable device intended to monitor and detect heart arrhythmia, specifically atrial fibrillation (A-Fib) based on a comparison to a control device, which is an off-the-shelf cleared Holter ECG device
This population-based descriptive study will characterize first-time users of three NOACs (rivaroxaban, dabigatran and apixaban) in prevention of stroke in non-valvular atrial fibrillation (SPAF) patients and will assess the patterns of drug utilization in routine general practice in Colombia
The primary objective of this study is to compare the incidence of rate control (defined as: HR <110 beats/min or conversion to sinus rhythm) at 2 hours after medication administration between oral immediate release diltiazem and intravenous continuous infusion diltiazem.
The objective of the study is to demonstrate the improved ablation and procedure times of the HeartLight X3 compared to the current HeartLight catheter in the treatment of atrial fibrillation.
The primary objective of this investigation is to compare the efficacy of two different AF ablation strategies in older patients with paroxysmal AF: Pulmonary vein isolation alone versus additional low-voltage substrate modification during sinus rhythm
The main objective of this project is to evaluate savings in direct costs as regards the use of rivaroxaban versus vitamin K antagonists (VKAs) in routine clinical practice using data from three cohorts of patients receiving VKAs or rivaroxaban in Spain, including the time in therapeutic range (TTR) values of the same and the incidence of events in the first year following diagnosis.
Fluid therapy is often used as first line treatment of acute circulatory failure, aiming an increase in cardiac output (by improving preload) and in tissue perfusion. Depending on left ventricular systolic function, fluid challenge could lead to an increase in cardiac ouput and tissue perfusion, or only detrimental consequences (by fluid overload and aggravation of lung and tissues oedema, increase of morbi-mortality). Patients are defined as responders to fluid therapy if one can observe an increase of cardiac output up to 15% after fluid therapy (500ml of crystalloids): gold standard test used in most of the studies on the subject. Literature reports on heterogenous populations a reproductible and constant response rate to this fluid challenge of 50%. It seems reasonable to dispose of indices allowing to predict fluid responsiveness without resulting in fluid intake. Statics markers have been abandonned for several years and dynamics methods have been developped. In front of arrythmia, validated methods are scarce. Passive leg rising method appears to be the only one and it's validity seems to be less well documented than in sinusal patients. The purpose of this study is to determine a new method to assess fluid responsiveness in arrythmic patients. In atrial fibrillation, RR interval varies widely between cardiac cylces. Systolic interval remain constant. Variations will occure at expense of diastolic interval, or ventricular filling interval. One can reliably assume that when RR is longer, preload is rising. If the patient is on the ascendant part of the Franck-Starling curve, a longer RR should cause au greater VTI (Vitess Time Integral, surrogate of cardiac output). The evaluation by transthoracic echocardiography of the indice delta ITV / delta RR should determine the degree of fluid responsiveness in arrhythmic patients. After decision of fluid expansion, patients will have haemodynamic and echocardiographic data measured, delta ITV / delta RR indice assessed, then passive leg rising and fluid expansion with 500 ml of cristalloids administered, with evaluation of VTI (as surrogate of cardiac output) at each time. Fluid responders will be compared to non-responders to evaluate the diagnostic performances of the indice delta ITV / delta RR.
The QDOT-FAST study is a prospective, multi-center, non-randomized, interventional clinical study.
Atrial fibrillation is the most frequent heart rhythm disorder. Its symptomatic forms, resistant to drug therapy, require invasive management (catheter ablation), which exposes to potentially serious complications including thromboembolic complications. Despite anticoagulant treatment, intra-atrial thrombus, which is a contraindication to catheter ablation, is detected in nearly 2 % of cases. Its diagnosis requires prior transoesophageal echocardiography, an unpleasant examination. A previous study (NCT02199080) showed that a zero ATE score, defined by no heart failure, no hypertension, no history of stroke, d-dimer < 270 ng/mL, has a negative predictive value of 100 % for the exclusion of intra-atrial thrombus. The objective of the study is to confirm the negative predictive value, sensitivity and specificity of the ATE score for the exclusion of intra-atrial thrombus.