Implantable Loop Recorders in Post-atrial Fibrillation (AF) Ablation: RPAF-A
This is a randomized pilot study, of post pulmonary vein isolation (PVI) patients to determine the clinical utility of the Implantable Loop Recorder. The Medtronic Reveal XT implantable Loop Recorder is a market released device indicated for patients with clinical syndromes or situations at increased risk of cardiac arrhythmias, and patients who experience transient symptoms that may suggest a cardiac arrhythmia. These type of patients either are monitored with weekly transtelephonic monitoring (TTM) or implantable loop recorder (ILR). Neither approach has been shown to be superior. As both approaches are currently being performed based on physician preference, the investigators propose to study and compare both approaches in a randomized fashion for evidence based practice. The Medtronic Reveal XT loop recorder will be implanted at the time of the PVI or at the 3-4 month PVI follow-up visit and patient care will be managed based on randomization to a blinded or unblinded group. Outcome measures will be compared to determine the detection of symptomatic and asymptomatic post ablation AF and aid in decision making regarding anticoagulation and overall post ablation clinical management.
Observational Model: Case Control, Time Perspective: Prospective
The Cleveland Clinic
Results (where available)
- Source: http://clinicaltrials.gov/show/NCT01061125
- Information obtained from ClinicalTrials.gov on July 15, 2010
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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)
An anticoagulant that acts by inhibiting the synthesis of vitamin K-dependent coagulation factors. Warfarin is indicated for the prophylaxis and/or treatment of venous thrombosis and its extension, pulmonary embolism, and atrial fibrillation with embolization. It is also used as an adjunct in the prophylaxis of systemic embolism after myocardial infarction. Warfarin is also used as a rodenticide.
A type of cardiac arrhythmia with premature atrial contractions or beats caused by signals originating from ectopic atrial sites. The ectopic signals may or may not conduct to the HEART VENTRICLES. Atrial premature complexes are characterized by premature P waves on ECG which are different in configuration from the P waves generated by the normal pacemaker complex in the SINOATRIAL NODE.
Abnormal cardiac rhythm that is characterized by rapid, uncoordinated firing of electrical impulses in the upper chambers of the heart (HEART ATRIA). In such case, blood cannot be effectively pumped into the lower chambers of the heart (HEART VENTRICLES). It is caused by abnormal impulse generation.