View clinical trials related to Paroxysmal Atrial Fibrillation.
Filter by:The study is designed as a prospective, multicenter, single-blind, randomized study to assess the safety and effectiveness of FIRM-guided radiofrequency (RF) ablation procedures for the treatment of symptomatic paroxysmal atrial fibrillation (PAF). The subjects will be blinded to study treatment for the duration of the study period.
We randomly assigned 390 patients with symptomatic, paroxysmal AF to undergo catheter ablation with PVI (PVI group) alone or combined with 6 additional ablation lines extended outside the PVI circumferences at 1, 3 and 6 o'clock of left PV and 6, 9 and 11 o'clock of right PV (PVI+6L group). Patients received monthly 12-lead electrocardiogram, 24-hour Holter at 3, 6 and 9 months and 14-days continuous monitoring at 12 months to detect atrial tachyarrhythmia. The follow-up period was 12 months. The primary end point was freedom from AF recurrence between 91 and 365 days after catheter ablation. The secondary end points included the AF burden, procedural parameters, and complications.
The purpose of this study is to estimate the clinical relevance of monitoring patients with acute ischemic stroke with 48 hours' inpatient cardiac telemetry in relation to evaluate the presence of brief runs of premature atrial complexes and new diagnosed atrial fibrillation. Furthermore to evaluate the prognostic significance of brief runs of premature atrial complexes in relation to develop atrial fibrillation, recurrent stroke/transient ischemic attack and death.
Radiofrequency catheter ablation is effective in the treatment of patients with paroxysmal atrial fibrillation. In order to reduce the recurrence rate after catheter ablation, the investigators propose to apply 'virtual' ablation on patient-specific atria by simulating 3D atrial computer model. The investigators will conduct virtual rotor mapping in the patient specific atrial model. Then, the investigators will compare the clinical outcome of conventional circumferential pulmonary vein isolation and additional rotor ablation guided by virtual rotor mapping.
The study will select all recruited patients with paroxysmal atrial fibrillation will be randomly allocated to receive oral rosuvastatin 20mg/day or blank control from 7 days before ablation and last for 3 months. To observe the early relapse of atrial fibrillation and the changes of white blood cell count, hs-C reactive protein (CRP), interleukin (IL)-6 and tumor necrosis factor (TNF)-α, and the changes of safety indicators . This study assumes that the early atrial fibrillation (AF) recurrence will be decreased in patients with paroxysmal AF if rosuvastatin 20mg/d is received from 7 days before surgery in these patients who plan to undergo radiofrequency catheter ablation for consecutive 3 months.
Atrial fibrillation (AF) is a common heart rhythm disorder which can significantly affect a patient's quality of life and cause strokes. Abnormal electrical activity from the pulmonary veins are thought to be the most common cause of this condition. Current ablative strategy in drug refractory AF is pulmonary vein isolation (PVI), where the pulmonary veins are electrically isolated from the body of the left atrium. However, success rate of this procedure remain ~50-70% for a single procedure despite advances in mapping and ablation techniques. Ganglionated plexuses (GP) are dense clusters of nerves in the atria that are implicated in AF. Endocardial high frequency stimulation (HFS) delivered within the local atrial refractory period can trigger ectopy and AF from specific GP sites (ET-GP). The aim of this study was to understand the role of ET-GP ablation in the treatment of AF by comparing two different strategies: 1. Pulmonary vein isolation alone 2. GP ablation alone
The purpose of this study is to compare single groin puncture and bilateral groin puncture during AF ablation procedure. The investigators will compare 1) the degree of patients' discomfort during hemostasis by questionaire, 2) procedure time, 3) complication rates, and 4) 1-year clinical recurrence rate of AF.
This study aims to determine whether increasing atrial base rate pacing to achieve at least 75-80% atrial pacing in patients with sick sinus syndrome undergoing the implementation of dual-chamber pacemaker can be useful to prevent or decrease the atrial fibrillation during 6 months follow-up duration.
A prospective, multicenter, interventional study to collect confirmatory evidence on the safety and effectiveness of the TactiCath® percutaneous ablation catheter in the post approval setting for the treatment of symptomatic paroxysmal atrial fibrillation using contact force assisted irrigated radiofrequency ablation.
The REDUCE-TE Pilot study is an international, multicenter, prospective, single arm study to compare the AlCath Flux eXtra Gold ablation catheter regarding the prevention of new subclinical cerebral thromboembolic lesions after Pulmonary Vein Isolation to historical data from the literature.