Durability of Pulmonary Vein Isolation Following Cryoablation for

Status Completed

Clinical Trial Summary

The purpose of the study is to determine the permanency of PV isolation with the Arctic Front Advance cryoablation system in paroxysmal AF patients. It will also provide data on acute procedural outcomes and measures as well as clinical AF recurrence in these patients approximately 3 months post-ablation.

Clinical Trial Description

Atrial fibrillation (AF) is the most common arrhythmia encountered in clinical practice. It is estimated that more than 7 million people worldwide have the disease. Over the past decade, catheter ablation has become an accepted treatment for patients with AF. Ablation strategies that target the pulmonary vein are considered the cornerstone for treatment. The innovative Arctic Front cryoballoon is used for the treatment of drug refractory recurrent symptomatic paroxysmal AF (PAF). The system was designed to overcome many of the challenges of point-by-point catheter ablation by providing an anatomical approach for pulmonary vein isolation (PVI), creating long contiguous circumferential lesions surrounding the pulmonary vein. The cryoballoon system has a low risk of complications and proven efficacy in treating PAF.

AF recurrence rates have been reported up to 30% after initial ablation with PVI technologies including point-by-point RF catheter ablation. Arrhythmia recurrence can be caused by non-contiguous ablation lines that allow conduction gaps. Arctic Front Advance™ Cardiac CryoAblation Catheter (Arctic Front Advance), the second-generation cryoballoon which has recently been introduced following clearance by regulatory agencies in both the US and EU, is positioned to address this challenge with PVI technologies. The new catheter features the EvenCool™ Cryo Technology, which optimizes how the refrigerant is distributed inside the balloon, providing more uniform, distal cooling around the circumference of the balloon. The purpose of this study is to examine the rate of electrical PV isolation with the next generation system . ;

Study Design

Related Conditions & MeSH terms

Clinical Trial Details

NCT number	NCT01645917
Study type	Interventional
Source	Medtronic Cardiac Rhythm and Heart Failure
Contact
Status	Completed
Phase	Phase 4
Start date	August 2012
Completion date	November 2013

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See also
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Clinical trials are conducted in a series of steps, called phases - each phase is designed to answer a separate research question.

Phase 1: Researchers test a new drug or treatment in a small group of people for the first time to evaluate its safety, determine a safe dosage range, and identify side effects.
Phase 2: The drug or treatment is given to a larger group of people to see if it is effective and to further evaluate its safety.
Phase 3: The drug or treatment is given to large groups of people to confirm its effectiveness, monitor side effects, compare it to commonly used treatments, and collect information that will allow the drug or treatment to be used safely.
Phase 4: Studies are done after the drug or treatment has been marketed to gather information on the drug's effect in various populations and any side effects associated with long-term use.

Durability of Pulmonary Vein Isolation Following Cryoablation for Treatment of Paroxysmal Atrial Fibrillation — SUPIR

Clinical Trial Summary

Clinical Trial Description

Study Design

Related Conditions & MeSH terms