Active clinical trials for "Atrial Fibrillation"

PEFCAT is a prospective, single-arm, multi-center, safety and feasibility study evaluating the FARAPULSE Endocardial Ablation System for the treatment of paroxysmal atrial fibrillation.

The aim of this study is to evaluate the effect of targeted in-person and online education on cardiovascular outcomes of AF patients (inpatient and outpatient), compared with standard care. Several other parameters (i.e. knowledge level, quality of life, symptom burden, self-care capabilities, adherence to oral anticoagulation, and an evaluation of the educational efforts) will be studied. Cost-effectiveness and cost-utility will also be investigated. The main research hypothesis is that individualized education based on the knowledge gaps measured with the JAKQ (Jessa Atrial fibrillation Knowledge Questionnaire) in each individual patient (called 'targeted education') is superior when compared to current AF care, both from an efficacy perspective (evaluated by different outcome measures) and from a cost-effectiveness perspective.

This clinical investigation is intended to demonstrate the safety and effectiveness of the TactiCath™ Contact Force Ablation Catheter, Sensor Enabled™ (TactiCath SE) for use in cardiac electrophysiological mapping and for the treatment of drug-refractory, recurrent symptomatic persistent atrial fibrillation (AF) when used in conjunction with a compatible radiofrequency (RF) generator and three-dimensional mapping system. This clinical investigation will be conducted under an investigational device exemption (IDE) and is intended to support market approval of the TactiCath SE ablation catheter for the treatment of drug refractory, symptomatic persistent atrial fibrillation in the United States.

IMPULSE is a prospective, single-arm, multi-center, safety and feasibility study evaluating the IOWA Approach Endocardial Ablation System (FARAPULSE, Inc.) for the treatment of paroxysmal atrial fibrillation.

This research has two main specific aims. First, a commercially-available stimulator will be utilized to assess the effect of low-level electromagnetic field (EMF) stimulation on atrial fibrillation (AF) inducibility in patients with paroxysmal AF presenting for catheter ablation as compared to sham stimulation. We hypothesize a reduction in AF inducibility in patients treated with EMF stimulation. Second, we aim to assess for the effect of low-level EMF on level of systemic inflammatory mediators. We hypothesize a reduction in the level of the inflammatory mediator tissue necrosis factor (TNF)-α in patients treated with EMF stimulation as compared to sham stimulation. The long-term objective of this research is to develop low-level EMF as a therapeutic alternative for patients with AF, and this research will help to determine the efficacy of low-level pulsed EMF in this regard.

Atrial fibrillation (AF) is a cardiac condition that results in patients experiencing an irregular heart beat resulting in symptoms including palpitations and breathlessness. It is known that in most cases, AF is caused by abnormal electrical activity from the top of the left side of the heart (left atrium) which overrides the heart natural pacemaker in the right atrium. Treatment options include tablets which suppress this abnormal electrical activity, but in some patients these are not sufficient and a procedure is carried out where the areas of abnormal electrical activity are disconnected or 'ablated' to prevent AF from occurring. This treatment is well established and performed worldwide, often under general anaesthetic (GA). The heart and lungs sit close together in the chest, and when the lungs are inflated and deflated during the procedure, the heart also moves. This movement is then transmitted to the special wires or 'catheters' that are placed inside the heart to deliver the ablation treatment. Instability during the treatment can result in ineffective areas of ablation which may later contribute to reduced success of the procedure. Previous research has shown that by reducing the movement of the heart under anaesthesia using alternative techniques can improve catheter stability and improve procedural results. Once such technique is called high frequency jet ventilation (HFJV) which allows the lungs to filled with air using fast and shallow breaths resulting in normal blood oxygen levels with little movement in the heart. This technique has been shown to be safe and effective for this procedure but a direct comparison with conventional ventilation has not been done. The investigators wish to test this and determine if using HFJV improves outcomes during the procedure (i.e. can investigators do the treatment faster and more effectively) and if this translates to better outcomes long term.

The prior End-AF study by the same group showed that 1 mg of colchicine didn't decrease the incidence of AF after cardiac surgery. The current study, End-AF Low Dose Study, will test 0.5 mg colchicine vs. placebo in preventing AF after cardiac surgery.

To determine the correlation between rate of temperature decline and nadir cryoballoon temperatures rate of temperature decline and nadir esophageal temperatures during pulmonary vein isolation.

The purpose of this study is to investigate whether a rehabilitation programme can improve the quality of life and reduce morbidity in patients with atrial fibrillation. In addition, the study will map the economic costs and benefits of such a rehabilitation programme.

We aimed to assess the benefit of epicardial mapping and ablation in patients with recurred atrial tachyarrhythmias after single procedure for atrial fibrillation. We hypothesize that both endocardial and epicardial approach is superior to only endocardial approach with regards to clinical recurrence. Participants are randomized into a hybrid approach or an endocardial approach.