Assessing Arrhythmias After Ablation Using Implantable Recorders
ABACUS
Assessment of Arrhythmia Burden in Patients Undergoing Atrial Fibrillation Using an Implantable Loop Recorder (ILR) Versus Conventional Monitoring Strategy
1 other identifier
interventional
44
1 country
1
Brief Summary
The purpose of this study is to determine if continuous monitoring using an implantable loop recorder (ie. a device that is placed just underneath the skin of the chest and monitors the heart rate and rhythm) for a year long period after atrial fibrillation ablation may be superior to the current conventional monitoring strategy used by us for determination of atrial fibrillation recurrence (ie. return of the abnormal heart rhythm) and/or arrythmia burden (ie. how long the abnormal rhythm continues or how often the rhythm occurs). Some data suggests that continuous monitoring over longer periods may be better in identifying recurrence of atrial fibrillation after ablation and thus assist in its overall management. The device being used for this study is the Reveal XT, which, is currently FDA approved for monitoring all varieties of cardiac rhythm disorders including atrial fibrillation.
Trial Health
Trial Health Score
Automated assessment based on enrollment pace, timeline, and geographic reach
participants targeted
Target at below P25 for not_applicable atrial-fibrillation
Started Jun 2012
Shorter than P25 for not_applicable atrial-fibrillation
1 active site
Health score is calculated from publicly available data and should be used for screening purposes only.
Trial Relationships
Click on a node to explore related trials.
Study Timeline
Key milestones and dates
First Submitted
Initial submission to the registry
August 4, 2010
CompletedFirst Posted
Study publicly available on registry
August 6, 2010
CompletedStudy Start
First participant enrolled
June 1, 2012
CompletedPrimary Completion
Last participant's last visit for primary outcome
August 1, 2012
CompletedStudy Completion
Last participant's last visit for all outcomes
January 1, 2013
CompletedResults Posted
Study results publicly available
April 5, 2018
CompletedApril 5, 2018
April 1, 2018
2 months
August 4, 2010
April 19, 2017
April 3, 2018
Conditions
Keywords
Outcome Measures
Primary Outcomes (1)
Arrhythmia Burden
The primary outcome will be arrhythmia recurrences (atrial fibrillation and/or other atrial arrhythmias) after atrial fibrillation ablation over the initial 6 months and one year post-ablation as detected by the implantable loop recorder versus the conventional monitoring strategy. Months 1- 6 patients were being monitored by CM and ILR and in months 6 - 12 they were randomized to either ILR or CM.
6 and 12 months
Secondary Outcomes (1)
Detection of Actionable Events Resulting in Change of Clinical Care
12 months
Study Arms (2)
Conventional Monitoring Strategy
NO INTERVENTIONSubjects will be monitored for 12 months using the conventional strategy which includes wearing a monitor over 3 separate 30-day periods over the first year post-ablation and daily pulse checks.
Reveal XT
OTHERSubjects will be monitored using the conventional monitoring strategy for the first 6 months post-ablation. During the next 6 months, subjects will be monitored using the data from the Reveal device, transmitted from home every 30 days.
Interventions
All study participants will receive the Reveal XT implantable loop recorder immediately after completion of the ablation procedure.
Eligibility Criteria
You may qualify if:
- Greater than 18 years
- Undergoing ablation for atrial fibrillation at the University of Pennsylvania
You may not qualify if:
- Patients with already implanted devices, including pacemakers, implantable cardiac defibrillators and cardiac resynchronization devices
Contact the study team to confirm eligibility.
Sponsors & Collaborators
- University of Pennsylvanialead
- Medtroniccollaborator
Study Sites (1)
University of Pennsylvania
Philadelphia, Pennsylvania, 19014, United States
Related Publications (1)
Kapa S, Epstein AE, Callans DJ, Garcia FC, Lin D, Bala R, Riley MP, Hutchinson MD, Gerstenfeld EP, Tzou W, Marchlinski FE, Frankel DS, Cooper JM, Supple G, Deo R, Verdino RJ, Patel VV, Dixit S. Assessing arrhythmia burden after catheter ablation of atrial fibrillation using an implantable loop recorder: the ABACUS study. J Cardiovasc Electrophysiol. 2013 Aug;24(8):875-81. doi: 10.1111/jce.12141. Epub 2013 Apr 11.
PMID: 23577826RESULT
MeSH Terms
Conditions
Condition Hierarchy (Ancestors)
Results Point of Contact
- Title
- Dr. Sanjay Dixit
- Organization
- Hospital of the University of Pennsylvania
Study Officials
- PRINCIPAL INVESTIGATOR
Sanjay Dixit, MD
University of Pennsylvania
Publication Agreements
- PI is Sponsor Employee
- No
- Restrictive Agreement
- No
Study Design
- Study Type
- interventional
- Phase
- not applicable
- Allocation
- RANDOMIZED
- Masking
- NONE
- Purpose
- DIAGNOSTIC
- Intervention Model
- SINGLE GROUP
- Sponsor Type
- OTHER
- Responsible Party
- SPONSOR
Study Record Dates
First Submitted
August 4, 2010
First Posted
August 6, 2010
Study Start
June 1, 2012
Primary Completion
August 1, 2012
Study Completion
January 1, 2013
Last Updated
April 5, 2018
Results First Posted
April 5, 2018
Record last verified: 2018-04