Hybrid Atrial Fibrillation Ablation Registry

June 1, 2026 updated by: University Medical Center Groningen

Identification of a Risk Profile Associated With Failure of the Hybrid Ablation of Atrial Fibrillation.

Recently a combined approach of surgeon ablation in combination with endocardial ablation (hybrid ablation) has been introduced. This therapy has shown excellent results in patients with previous failed endocardial ablation for paroxysmal atrial fibrillation as well in patients with persistent atrial fibrillation. The investigators hypothesize that the severity of atrial remodeling in patients with atrial fibrillation can be measured by clinical factors, echocardiographic parameters, circulating biomarkers and genetic background, and that these factors can be used to identify a risk profile to predict failure of the hybrid ablation therapy in patients with atrial fibrillation. Aim of this study is to determine a risk profile based on clinical correlates, circulating biomarkers, and genetic background associated with failure of the hybrid ablation procedure, in a prospective single center registry setting. The investigators evaluate all consecutive patients who have agreed to undergo the hybrid ablation procedure because of atrial fibrillation. The investigators aim for a total of 250 participants. Extra study related procedures include blood sampling for biomarkers and genetic analysis, prolonged Holter monitoring for documentation of recurrences of atrial fibrillation/atrial flutter/atrial tachycardias, and a quality of life questionnaire. Total follow-up will be five years.

Main study endpoint is failure of the hybrid ablation procedure in patients with atrial fibrillation, i.e. any (a)symptomatic atrial fibrillation/atrial flutter/atrial tachycardia >30sec without anti-arrhythmic drugs at one year of follow-up by ECG recording and 3-day Holter monitoring.

Study Overview

Status

Status

Indicates the current recruitment status or the expanded access status.
Completed

Conditions

Conditions

The disease, disorder, syndrome, illness, or injury that is being studied. On ClinicalTrials.gov, conditions may also include other health-related issues, such as lifespan, quality of life, and health risks.

Detailed Description

Rationale: The investigators hypothesize that the severity of atrial remodeling in patients with atrial fibrillation can be measured by clinical factors, echocardiographic parameters, circulating biomarkers and genetic background, and that these factors can be used to identify a risk profile to predict failure of the hybrid ablation therapy in patients with atrial fibrillation.

Objective: To determine a risk profile based on clinical correlates, circulating biomarkers, and genetic background associated with failure of the hybrid ablation procedure in patients with atrial fibrillation.

Study design: A prospective single center registry. Study population: Patients who have agreed to undergo the hybrid ablation procedure because of atrial fibrillation. The investigators aim for a total of 250 participants.

Intervention: Extra study related procedures include blood sampling for biomarkers and genetic analysis at baseline and 1 year follow-up; prolonged Holter monitoring for documentation of recurrences of atrial fibrillation/ atrial flutter/atrial tachycardias at 3 months, 6 months and 1 year follow-up; and a quality of life questionnaire at baseline, and at 1 year and 5 year follow-up.

Total follow-up duration: Five years. Main study endpoints: Failure of the hybrid ablation procedure in patients with atrial fibrillation, i.e. any (a)symptomatic atrial fibrillation/atrial flutter/atrial tachycardia >30sec without anti-arrhythmic drugs at one year of follow-up by ECG recording and 3-day Holter monitoring.

Study Type

Study Type

Describes the nature of a clinical study. Study types include interventional studies (also called clinical trials), observational studies (including patient registries), and expanded access.
Observational

Enrollment (Actual)

Enrollment

The number of participants in a clinical study. The "anticipated" enrollment is the target number of participants that the researchers need for the study.
250

Participation Criteria

Researchers look for people who fit a certain description, called eligibility criteria. Some examples of these criteria are a person's general health condition or prior treatments.

Eligibility Criteria

Eligibility Criteria

The key requirements that people who want to participate in a clinical study must meet or the characteristics they must have. Eligibility criteria consist of both inclusion criteria (which are required for a person to participate in the study) and exclusion criteria (which prevent a person from participating). Types of eligibility criteria include whether a study accepts healthy volunteers, has age or age group requirements, or is limited by sex.

Ages Eligible for Study

  • Child
  • Adult
  • Older Adult

Accepts Healthy Volunteers

No

Sampling Method

Non-Probability Sample

Study Population

Patients who have agreed to undergo the hybrid ablation procedure because of atrial fibrillation.

Description

Inclusion Criteria:

  • Patients who have agreed to undergo the hybrid ablation procedure because of atrial fibrillation.

Exclusion Criteria:

  • None.

Study Plan

This section provides details of the study plan, including how the study is designed and what the study is measuring.

How is the study designed?

Design Details

What is the study measuring?

Primary Outcome Measures

Primary Outcome Measures

In a clinical study's protocol, the planned outcome measure that is the most important for evaluating the effect of an intervention/treatment. Most clinical studies have one primary outcome measure, but some have more than one.
Outcome Measure
Measure Description
Time Frame
Failure of the hybrid ablation procedure in patients with atrial fibrillation
Time Frame: 1 year
Any (a)symptomatic atrial fibrillation/atrial flutter/atrial tachycardia >30sec without anti-arrhythmic drugs at 1 year by ECG recording and 3-day Holter monitoring.
1 year

Collaborators and Investigators

This is where you will find people and organizations involved with this study.

Sponsor

Sponsor

The organization or person who initiates the study and who has authority and control over the study.
University Medical Center Groningen

Investigators

Investigators

A researcher involved in a clinical study. Related terms include site principal investigator, site sub-investigator, study chair, study director, and study principal investigator.
  • Principal Investigator: Isabelle C Van gelder, MD, PhD, University Medical Center Groningen

Publications and helpful links

The person responsible for entering information about the study voluntarily provides these publications. These may be about anything related to the study.

General Publications

Study record dates

These dates track the progress of study record and summary results submissions to ClinicalTrials.gov. Study records and reported results are reviewed by the National Library of Medicine (NLM) to make sure they meet specific quality control standards before being posted on the public website.

Study Major Dates

Study Start

Study Start

The actual date on which the first participant was enrolled in a clinical study. The "anticipated" study start date is the date that the researchers think will be the study start date.
January 1, 2015

Primary Completion (Actual)

Primary Completion

The date on which the last participant in a clinical study was examined or received an intervention to collect final data for the primary outcome measure. Whether the clinical study ended according to the protocol or was terminated does not affect this date. For clinical studies with more than one primary outcome measure with different completion dates, this term refers to the date on which data collection is completed for all the primary outcome measures. The "anticipated" primary completion date is the date that the researchers think will be the primary completion date for the study.
May 1, 2026

Study Completion (Actual)

Study Completion

The date on which the last participant in a clinical study was examined or received an intervention/treatment to collect final data for the primary outcome measures, secondary outcome measures, and adverse events (that is, the last participant's last visit). The "anticipated" study completion date is the date that the researchers think will be the study completion date.
May 1, 2026

Study Registration Dates

First Submitted

First Submitted

The date on which the study sponsor or investigator first submitted a study record to ClinicalTrials.gov. There is typically a delay of a few days between the first submitted date and the record's availability on ClinicalTrials.gov (the first posted date).
August 3, 2015

First Submitted That Met QC Criteria

First Submitted That Met QC Criteria

The date on which the study sponsor or investigator first submits a study record that is consistent with National Library of Medicine (NLM) quality control (QC) review criteria. The sponsor or investigator may need to revise and submit a study record one or more times before NLM's QC review criteria are met. It is the responsibility of the sponsor or investigator to ensure that the study record is consistent with the NLM QC review criteria.
August 3, 2015

First Posted (Estimated)

First Posted

The date on which the study record was first available on ClinicalTrials.gov after National Library of Medicine (NLM) quality control (QC) review has concluded. There is typically a delay of a few days between the date the study sponsor or investigator submitted the study record and the first posted date.
August 5, 2015

Study Record Updates

Last Update Posted (Actual)

Last Update Posted

The most recent date on which changes to a study record were made available on ClinicalTrials.gov. There may be a delay between when the changes were submitted to ClinicalTrials.gov by the study's sponsor or investigator (the last update submitted date) and the last update posted date.
June 3, 2026

Last Update Submitted That Met QC Criteria

Last Update Submitted That Met QC Criteria

The most recent date on which the study sponsor or investigator submitted changes to a study record that are consistent with National Library of Medicine (NLM) quality control (QC) review criteria. It is the responsibility of the sponsor or investigator to ensure that the study record is consistent with the NLM QC review criteria.
June 1, 2026

Last Verified

Last Verified

The most recent date on which the study sponsor or investigator confirmed the information about a clinical study on ClinicalTrials.gov as accurate and current. If a study with a recruitment status of recruiting; not yet recruiting; or active, not recruiting has not been confirmed within the past 2 years, the study's recruitment status is shown as unknown.
May 1, 2026

More Information

Terms related to this study

Keywords

Additional Relevant MeSH Terms

Other Study ID Numbers

Other Study ID Numbers

Identifiers or ID numbers other than the NCT number that are assigned to a clinical study by the study's sponsor, funders, or others. These numbers may include unique identifiers from other trial registries and National Institutes of Health grant numbers.
  • METc2014/239

This information was retrieved directly from the website clinicaltrials.gov without any changes. If you have any requests to change, remove or update your study details, please contact register@clinicaltrials.gov. As soon as a change is implemented on clinicaltrials.gov, this will be updated automatically on our website as well.

Cookie Settings

We use cookies to ensure that we give you the best experience on our website. For more details carefully read our Privacy and Cookies Policy. ...>>>You can change your preferences or withdraw your consent at any time by deleting the cookies from your website or computer as described in the policy. Please accept it and choose your preferences by ticking the corresponding boxes in the "Manage Settings" section below. Please carefully read our Terms of Service before you proceed with using any part of this website.
«Manage Settings