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EnSite Precision Observational Study

The safety and scientific validity of this study is the responsibility of the study sponsor and investigators. Listing a study does not mean it has been evaluated by the U.S. Federal Government. Read our disclaimer for details. Identifier: NCT03260244
Recruitment Status : Completed
First Posted : August 24, 2017
Last Update Posted : April 7, 2020
Information provided by (Responsible Party):
Abbott Medical Devices

Brief Summary:

This document is a clinical investigation plan (CIP) for the EnSite Precision Observational Study.

This clinical study is intended to quantify and characterize the usage of the EnSite Precision™ Cardiac Mapping System (Software version 2.0.1 or higher) in a real-world environment. This study will be conducted in patients who are indicated for a cardiac electrophysiological (EP) mapping and radio frequency ablation procedure using a three-dimensional system.

Condition or disease Intervention/treatment
Cardiac Arrhythmia Procedure: cardiac mapping and radiofrequency ablation procedure

Detailed Description:

The EnSite Precision™ Cardiac Mapping System is a newly developed system that introduces features such as Delayed Enhancement Magnetic Resonance Imaging (DE-MRI) image integration, lesion marking automaticity, automatic mapping, and workflow flexibility to aid in the success of complex ablation procedures. Utilization of this system in the treatment of complex ablation procedures and its impact on patient outcomes is not well characterized. This clinical study is designed to collect a broad range of usage scenarios, therefore this clinical study has limited patient selection criteria and data collection is focused on EnSite Precision™ Cardiac Mapping System usage and patient outcomes.

The data collected from the procedure (performed per Instructions For Use (IFU) and per standard practice of the physician) as well as the 12 month follow up period enables the Sponsor to review the system's standard practice usage. This information will be added to the current knowledge and understanding of treatment options for patients with arrhythmias, which can assist the Sponsor to provide future recommendations for best practices to improve patient outcomes.

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Study Type : Observational
Actual Enrollment : 1065 participants
Observational Model: Cohort
Time Perspective: Prospective
Official Title: A Clinical Evaluation Using EnSite Precision Cardiac Mapping System (Software Version 2.0.1 or Higher) in a Real-World Environment
Actual Study Start Date : September 12, 2017
Actual Primary Completion Date : January 17, 2020
Actual Study Completion Date : March 31, 2020

Intervention Details:
  • Procedure: cardiac mapping and radiofrequency ablation procedure

    It is a minimally invasive procedure which can be performed using either general or conscious sedation. During catheter ablation, catheters (narrow, flexible tubes) are inserted into a blood vessel, often through a site in the groin (upper thigh) or neck, and guided through the vein until they reach the heart. Small electrodes on the tip of the catheters stimulate and record the heart's activity. This test, called an electrophysiology study (EPS), allows the doctor to pinpoint the exact location of the short circuit. Another word for pinpointing the exact location of the short circuit is 'mapping', for which precision is a key requirement to maximize a successful outcome.

    Once the location is confirmed, the short circuit is either destroyed (to reopen the electrical pathway) or blocked (to prevent it from sending faulty signals to the rest of the heart).

Primary Outcome Measures :
  1. Summary of subjects that used EnSite™ AutoMap and AutoMark module [ Time Frame: during procedure ]
    Overall usage of EnSite™ AutoMap Module. This will be summarized by the number and proportion of subjects with a procedure that use EnSite™ AutoMap. Overall usage of AutoMark module. This will be summarized by the number and proportion of subjects with a procedure that use AutoMark.

  2. Summary of EnSite™ Automap and AutoMark Module software settings used per arrhythmia [ Time Frame: during procedure ]
    Among the subjects with EnSite™ AutoMap and AutoMark module features used during the procedure, the settings of EnSite™ AutoMap and AutoMark features will be summarized descriptively by each arrhythmia, as number and proportion or mean and standard deviation as appropriate.

  3. Mapping time associated with (re-)mapping one or multiple arrhythmias per catheter type used in a single subject [ Time Frame: during procedure ]
    Mapping time will be summarized (e.g. as mean, median, standard deviation, minimum and maximum) across arrhythmia types and for each type of arrhythmia per catheter, as appropriate for the different map types.

  4. Used Points per Minute per catheter type stratified by arrhythmia type and mapping type [ Time Frame: during procedure ]
    Mapping points per minute used will be summarized (e.g. as mean, median, standard deviation, minimum and/or maximum) across arrhythmia types and for each type of arrhythmia per catheter as appropriate, for the different map types

  5. Rate of acute success based on pre-defined procedural endpoints [ Time Frame: during procedure ]
    The number and proportion of subjects with acute success will be summarized.

  6. Freedom from arrhythmia recurrence [ Time Frame: From date of procedure until the date of first documented arrhythmia recurrence or date of study completion or withdrawal for any cause, whichever came first, assessed up to 12 months ]
    This analysis will be performed using the Kaplan-Meier (KM) analyses. The start date is the date of the index procedure. For subjects who do not experience an event, their follow up duration will be defined from the start date to the date of death, withdrawal, or last follow-up, whichever occurred later.

  7. Number of repeat ablations up to 12 months. [ Time Frame: 1 year ]
    This will be summarized as the total count of repeat ablations up to 12 months and the total number of subjects who experience at least one repeat ablation up to 12 months among all subjects in analysis population.

  8. Summary of NavX Patch placement locations used [ Time Frame: during procedure ]
    The number and proportion of subjects with NavX patches (Surface Electrode Patches) placed by location

  9. Number of gaps in lesions identified during the procedure that require touch-up ablation [ Time Frame: during procedure ]
    The number and proportion of subjects with gaps in lesions identified will be summarized and reported. The summary of number of gaps identified will be reported. The number and proportion of subjects where the AutoMark Module assisted in identifying these gaps will be summarized and reported.

  10. Changes in EQ-5D quality of life score at 6 and 12 months [ Time Frame: 1 year ]
    Changes in EQ-5D at 6 months from baseline, and changes in EQ-5D score at 12 months from baseline will be summarized.

  11. Number of unscheduled visits and hospitalizations due to arrhythmia [ Time Frame: 1 year ]
    The number of unscheduled visits due to arrhythmia, or hospitalizations due to arrhythmia will be summarized per subject and presented as the number of subjects

  12. Overall procedure time [ Time Frame: during procedure ]
    Overall procedure time for the index procedure will be summarized e.g. as mean, standard deviation, minimum and/or maximum. Procedure time will be derived as (Procedure stop time (Last catheter out) - Procedure start time (first catheter in)).

  13. Overall system stability [ Time Frame: during procedure ]
    Proportion of subjects with the system stable throughout the procedure. System stability will be based on the opinion of the investigator.

Information from the National Library of Medicine

Choosing to participate in a study is an important personal decision. Talk with your doctor and family members or friends about deciding to join a study. To learn more about this study, you or your doctor may contact the study research staff using the contacts provided below. For general information, Learn About Clinical Studies.

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Ages Eligible for Study:   18 Years and older   (Adult, Older Adult)
Sexes Eligible for Study:   All
Accepts Healthy Volunteers:   No
Sampling Method:   Probability Sample
Study Population
The intended population for this clinical study is patients over the age of 18 years who are eligible for a cardiac EP mapping and RF ablation procedure using the EnSite Precision™ Cardiac Mapping System.

Inclusion Criteria:

  • Indicated for a cardiac EP mapping and RF ablation procedure using a 3D mapping system per IFU
  • Over 18 years of age
  • Able to provide informed consent for study participation and willing and able to comply with the protocol described evaluations and follow up schedule

Exclusion Criteria:

  • Patients who are only presenting with:

    • Atrioventricular Nodal Reentrant Tachycardia (AVNRT)
    • Atrioventricular Reentrant Tachycardia (AVRT)
  • Planned cryoablation procedure
  • Implanted with a neurostimulator
  • Contraindication to anticoagulation
  • Known presence of cardiac thrombus
  • Recent (<3 months) myocardial infarction or unstable angina or coronary artery by-pass
  • Currently enrolled in a clinical study/investigation evaluating another device or drug that would confound the results of this study
  • Pregnant or nursing
  • Individuals whose willingness to volunteer in a study, in the judgement of investigator or public authorities, could be unduly influenced by lack of or loss of the autonomy due to immaturity, or mental disability, or adverse personal circumstances, or hierarchical influence

Information from the National Library of Medicine

To learn more about this study, you or your doctor may contact the study research staff using the contact information provided by the sponsor.

Please refer to this study by its identifier (NCT number): NCT03260244

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United States, Alabama
Baptist Medical Center Princeton
Birmingham, Alabama, United States, 35211
United States, Arkansas
Cardiology Associates of North East Arkansas
Jonesboro, Arkansas, United States, 72401
Arkansas Cardiology
Little Rock, Arkansas, United States, 72205
United States, Florida
Bethesda Memorial Hospital
Boynton Beach, Florida, United States, 33435
United States, Missouri
Barnes-Jewish Hospital
Saint Louis, Missouri, United States, 63110
United States, Nebraska
Bryan LGH Medical Center East
Lincoln, Nebraska, United States, 68506
United States, Wisconsin
Aurora Medical Group
Milwaukee, Wisconsin, United States, 53215
Sponsors and Collaborators
Abbott Medical Devices
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Study Director: Kristin Ruffner, PhD Abbott
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Responsible Party: Abbott Medical Devices Identifier: NCT03260244    
Other Study ID Numbers: SJM-CIP-10159
First Posted: August 24, 2017    Key Record Dates
Last Update Posted: April 7, 2020
Last Verified: April 2020
Individual Participant Data (IPD) Sharing Statement:
Plan to Share IPD: No

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Studies a U.S. FDA-regulated Drug Product: No
Keywords provided by Abbott Medical Devices:
atrial fibrillation
atrial flutter
supraventricular tachycardia
ventricular tachycardia
premature ventricular contractions
cardiac mapping system
Additional relevant MeSH terms:
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Arrhythmias, Cardiac
Heart Diseases
Cardiovascular Diseases
Pathologic Processes