Study for Atrial Fibrillation Reduction (SAFARI)

2014-07-23 16:46:46 | BioPortfolio


Atrial fibrillation (AF), which is the name for rapid beats in the upper chambers of the heart, is the world’s most common kind of irregular heart beat. People with AF experience symptoms such as heart palpitations (a racing or pounding feeling in the chest), shortness of breath, dizziness, fatigue or weakness. Although AF can occur in otherwise healthy people for no apparent reason, it is sometimes associated with high blood pressure, heart disease or lung problems. The purpose of the SAFARI trial is to study the effectiveness of pacing algorithms in the upper chamber of the heart for patients who have both AF and bradycardia (slow heart beat).

Study Design

Allocation: Randomized, Control: Active Control, Endpoint Classification: Safety/Efficacy Study, Intervention Model: Parallel Assignment, Masking: Single Blind, Primary Purpose: Treatment


Atrial Fibrillation, Bradycardia


Pacing Algorithms


United States




Medtronic Cardiac Rhythm Disease Management

Results (where available)

View Results


Published on BioPortfolio: 2014-07-23T16:46:46-0400

Clinical Trials [529 Associated Clinical Trials listed on BioPortfolio]

Atrial Pacing for Termination and Prevention of Atrial Fibrillation

Atrial fibrillation (AF) is the most common sustained arrhythmia and is associated with substantial morbidity and mortality. Present treatment strategies are aimed at termination of AF an...

Electrophysiologically Guided PAcing Site Selection Study

This study is a long-term, prospective, and controlled evaluation of the incidence of persistent atrial fibrillation (AF) in patients with severe intra-right atrial conduction delay paced ...

Beluga - Clinical Observations of Automatic Algorithms for Cardiac Pacing

This study shall evaluate in daily medical practice the clinical results of the AV delay hysteresis search algorithm in patients with a INSIGNIA ULTRA or AVT pacemaker implanted for one of...

MINERVA: MINimizE Right Ventricular Pacing to Prevent Atrial Fibrillation and Heart Failure

The aim of this study is to test the impact of the managed ventricular pacing (MVP) mode and atrial preventive and antitachycardia pacing therapies on the reduction of a composite clinical...

Advanced Bradycardia Device Feature Utilization and Clinical Outcomes II

The purpose of this study is to characterize the utilization of diagnostics capabilities in St. Jude Medical pacemakers to manage patients with a standard bradycardia pacing indication.

PubMed Articles [2373 Associated PubMed Articles listed on BioPortfolio]

Management of atrial fibrillation in bradyarrhythmias.

Sinus node disease (SND), a common indication to implant a pacemaker, is frequently associated with atrial fibrillation (AF), either at implantation (paroxysmal AF) or during follow-up, which often ev...

Incremental Value of Left Atrial Structural and Functional Characteristics for Prediction of Atrial Fibrillation in Patients Receiving Cardiac Pacing.

Better prediction of cardiac pacing patients at risk of atrial fibrillation (AF) would enable more effective prophylaxis. We sought whether left atrial (LA) electromechanical conduction time (EMT) and...

Atrial fibrillation and rapid acute pacing regulate adipocyte/adipositas-related gene expression in the atria.

Atrial fibrillation (AF) has been associated with increased volumes of epicardial fat and atrial adipocyte accumulation. Underlying mechanisms are not well understood. This study aims to identify rapi...

Combined catheter ablation and left atrial appendage closure as a hybrid procedure for the treatment of atrial fibrillation.

Left atrial appendage (LAA) is the source of thrombi in up to 90% of patients with non-valvular atrial fibrillation (AF). Catheter ablation (CA) is an effective treatment for symptomatic AF and, in se...

Prediction of improvement in left atrial function index after catheter ablation for atrial fibrillation.

Although left atrial function index is reportedly a possible predictor of hospitalization for heart failure and of stroke irrespective of the presence or not of atrial fibrillation (AF), the effects o...

Medical and Biotech [MESH] Definitions

Rapid, irregular atrial contractions caused by a block of electrical impulse conduction in the right atrium and a reentrant wave front traveling up the inter-atrial septum and down the right atrial free wall or vice versa. Unlike ATRIAL FIBRILLATION which is caused by abnormal impulse generation, typical atrial flutter is caused by abnormal impulse conduction. As in atrial fibrillation, patients with atrial flutter cannot effectively pump blood into the lower chambers of the heart (HEART VENTRICLES).

A cardiotonic glycoside obtained mainly from Digitalis lanata; it consists of three sugars and the aglycone DIGOXIGENIN. Digoxin has positive inotropic and negative chronotropic activity. It is used to control ventricular rate in ATRIAL FIBRILLATION and in the management of congestive heart failure with atrial fibrillation. Its use in congestive heart failure and sinus rhythm is less certain. The margin between toxic and therapeutic doses is small. (From Martindale, The Extra Pharmacopoeia, 30th ed, p666)

A condition caused by dysfunctions related to the SINOATRIAL NODE including impulse generation (CARDIAC SINUS ARREST) and impulse conduction (SINOATRIAL EXIT BLOCK). It is characterized by persistent BRADYCARDIA, chronic ATRIAL FIBRILLATION, and failure to resume sinus rhythm following CARDIOVERSION. This syndrome can be congenital or acquired, particularly after surgical correction for heart defects.

A malignant form of polymorphic ventricular tachycardia that is characterized by HEART RATE between 200 and 250 beats per minute, and QRS complexes with changing amplitude and twisting of the points. The term also describes the syndrome of tachycardia with prolonged ventricular repolarization, long QT intervals exceeding 500 milliseconds or BRADYCARDIA. Torsades de pointes may be self-limited or may progress to VENTRICULAR FIBRILLATION.

Moving oneself through space while confused or otherwise cognitively impaired. Patterns include akathisia, exhibiting neuroleptic-induced pacing and restlessness; exit seekers who are often newly admitted institution residents who try to open locked exit doors; self-stimulators who perform other activities such as turning doorknobs, in addition to continuous pacing; and modelers who shadow other pacers.

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