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Atrial Fibrillation clinical trials

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NCT ID: NCT00215761 Completed - Atrial Fibrillation Clinical Trials

Recurrence of Atrial Fibrillation in Patients With Dual-chamber Pacemakers and Drug Therapy

Start date: January 2005
Phase: N/A
Study type: Observational

Comparison of AF-Burden in patients with paroxysmal atrial fibrillation and the necessity of a Dual-Chamber-Pacemaker-Therapy either with a DDD[R]60-Stimulation or AF prevention pacing. All Patients were stratified according to their existing drug therapy, e.g. Beta-Blocker or ACE-Inhibitor.

NCT ID: NCT00198614 Completed - Atrial Fibrillation Clinical Trials

Carvedilol Versus Metoprolol for the Prevention of Atrial Fibrillation After Off-Pump Coronary Bypass Surgery

Start date: January 2005
Phase: N/A
Study type: Interventional

Postoperative new-onset atrial fibrillation (AF) is the most common complication stemming from coronary artery bypass graft surgery, and is associated with increased early and late mortality risk. Standard guidelines recommend β blockers for the prevention of AF; however, no prospective study has compared the relative efficacy of β-blocking agents. We hypothesize that carvedilol, a non-selective adrenergic blocker with both anti-inflammatory and antioxidant properties, is more effective than metoprolol, a conventional β1-selective antagonist, in suppressing new-onset AF following off-pump coronary bypass surgery. We have designed the Carvedilol or Metoprolol Post-Revascularization Atrial Fibrillation Controlled Trial (COMPACT) to test our hypothesis in a multi-center, open-label, and randomized controlled trial.

NCT ID: NCT00196183 Completed - Atrial Fibrillation Clinical Trials

Trigger- vs. Substrate-Ablation for Paroxysmal Atrial Fibrillation

Start date: August 2004
Phase: Phase 4
Study type: Interventional

The purpose of this study is to compare two strategies of catheter-based treatment of paroxysmal atrial fibrillation: Pulmonary vein isolation either alone or combined with electrogram-guided substrate-ablation.

NCT ID: NCT00196144 Completed - Atrial Fibrillation Clinical Trials

FFS - Far Field Sensing Test Study in Cardiac Dual Chamber Pacemakers

Start date: July 2002
Phase: Phase 4
Study type: Interventional

The purpose of this study is to evaluate the effect of individual adjustment of the postventricular atrial blanking period in avoiding inappropriate mode switch of dual chamber pacemakers.

NCT ID: NCT00192972 Completed - Atrial Fibrillation Clinical Trials

A Randomized Trial of the Ostial Versus the Extra-Ostial Ablation Strategy for Atrial Fibrillation

Start date: November 2002
Phase: N/A
Study type: Interventional

Both segmental, ostial and circumferential, extra-ostial pulmonary vein (PV) isolation have been proven effective in the treatment of atrial fibrillation. In this study patients with symptomatic paroxystic or persistent AF were randomised to one of the above mentioned ablation methods. The primary endpoints were recurrent AF and recurrence of left atrium-PV conduction.

NCT ID: NCT00189319 Completed - Atrial Fibrillation Clinical Trials

To Evaluate the Impact of Oral Flecainide on Quality of Life in Patients With Paroxysmal Atrial Fibrillation

Start date: September 2003
Phase: Phase 4
Study type: Interventional

The purpose of this study is to evaluate the management of paroxysmal atrial fibrillation with controlled release flecainide on patient's quality of life.

NCT ID: NCT00188903 Completed - Atrial Fibrillation Clinical Trials

Diastolic Dysfunction and Atrial Fibrillation in CABG Surgery

Start date: March 2004
Phase: N/A
Study type: Observational

Left ventricular (LV) diastolic dysfunction is a common manifestation of heart disease that is responsible for significant morbidity and mortality.It is present when the ventricular filling is impaired as a result of delayed relaxation or decreased compliance. During Coronary artery bypass grafting (CABG) surgery, LV diastolic dysfunction is a frequent occurrence. Failure of the left ventricle to dilate normally causes an increase in LV filling pressure. Atrial fibrillation (AF) is a common complication after cardiac surgery affecting 20-30% of patients undergoing coronary revascularization procedures. AF is associated with significant morbidity and mortality and has been identified as a causative factor of increased length of both hospital and intensive care unit (ICU) stay after CABG surgery, resulting in increased resource utilization and medical care costs.The primary aim of this study is to determine if patients with preoperative diastolic dysfunction are exposed to higher risk of AF after coronary revascularization surgery.

NCT ID: NCT00187252 Completed - Heart Failure Clinical Trials

Mascot Study: Management of Atrial Fibrillation (AF) Suppression in AF-Heart Failure (HF) COmorbidity Therapy

MASCOT
Start date: September 2003
Phase: N/A
Study type: Interventional

The purpose of this study is to evaluate whether adding AF Suppression™ to cardiac resynchronization therapy (CRT) improves the prognosis of heart failure patients benefiting from cardiac resynchronization therapy.

NCT ID: NCT00180336 Completed - Heart Failure Clinical Trials

Safety and Efficacy Study of RENEWAL 4 AVT

Start date: July 2004
Phase: Phase 2/Phase 3
Study type: Interventional

The purpose of this study is to assess the safety and effectiveness of the CONTAK RENEWAL 4 AVT device.

NCT ID: NCT00174785 Completed - Atrial Fibrillation Clinical Trials

A Trial With Dronedarone to Prevent Hospitalization or Death in Patients With Atrial Fibrillation

ATHENA
Start date: June 2005
Phase: Phase 3
Study type: Interventional

To assess the efficacy of dronedarone in preventing cardiovascular hospitalization or death from any cause in a population of high-risk patients with atrial fibrillation/atrial flutter (AF/AFL). To assess that dronedarone is well tolerated in this population.