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The Evaluation for Prognostic Factors After Catheter Ablation of Atrial Fibrillation: Cohort Study

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ClinicalTrials.gov Identifier: NCT02138695
Recruitment Status : Recruiting
First Posted : May 14, 2014
Last Update Posted : March 18, 2019
Information provided by (Responsible Party):
Yonsei University

Brief Summary:

1. Purpose of the study

1) To explore clinical recurrence associated clinical factors including age, sex, clinical, electrophysiological, anatomical, imaging, and serologic characteristics.

2) To develop simulation model to predict clinical recurrence and the efficacy of catheter ablation 2. Scientific evidence of the study

  1. In atrial fibrillation patients, the maintenance of normal sinus rhythm showed significant reduction of mortality.
  2. drug therapy with anti-arrhythmic drug showed many complications and side effect, thus non-drug therapy such as catheter ablation is developed.
  3. catheter ablation has been performed for 10years world-wide, and showed superior treatment outcome compared with drug therapy.
  4. clinical outcome after catheter ablation is affected not only by age, sex and underlying disease, but also by electrophysiologic, imaging, serologic and electroanatomical remodeling of the heart. However, there are few studies concerning these multifactorial variables.

3. Study population

Condition or disease
Atrial Fibrillation

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Study Type : Observational
Estimated Enrollment : 3100 participants
Observational Model: Cohort
Time Perspective: Prospective
Study Start Date : May 2014
Estimated Primary Completion Date : February 2029
Estimated Study Completion Date : February 2029

Resource links provided by the National Library of Medicine

Yonsei AF Cohort
Patients with atrial fibrillation who undergoing catheter ablation of atrial fibrillation

Primary Outcome Measures :
  1. Clinical recurrence of atrial fibrillation (AF) after catheter ablation [ Time Frame: Participants will be followed for 5 year after catheter ablation ]
    We defined recurrence of AF as any episode of AF or atrial tachycardia lasting longer than 30 sec. Patients were asked to attend scheduled outpatient follow-up appointments 2, 6, 12, 18, 24, 36, 48 and 60 months after catheter ablation.

Information from the National Library of Medicine

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Ages Eligible for Study:   19 Years and older   (Adult, Older Adult)
Sexes Eligible for Study:   All
Accepts Healthy Volunteers:   No
Sampling Method:   Probability Sample
Study Population
Consecutive patients with atrial fibrillation who undergoing catheter ablation in Yonsei Cardiovascular hospital, Yonsei university health system, Seoul, Korea.

Inclusion Criteria:

  • patients who undergoing catheter ablation of atrial fibrillation due to symptomatic, drug refractory atrial fibrillation

Exclusion Criteria:

  • patients who do not agree with study inclusion
  • permanent AF refractory to electrical cardioversion
  • AF with valvular disease ≥ grade 2
  • patients with left atrial diameter greater than 60mm
  • patients with age less than 19

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 ClinicalTrials.gov identifier (NCT number): NCT02138695

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Contact: Hui-Nam Pak, MD 82-2-2228-8459 hnpak@yuhs.ac

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Korea, Republic of
Severance Hospital Recruiting
Seoul, Korea, Republic of, 120-752
Contact: Hui-Nam Pak    82-2-2228-8459    hnpak@yuhs.ac   
Sponsors and Collaborators
Yonsei University
Publications automatically indexed to this study by ClinicalTrials.gov Identifier (NCT Number):

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Responsible Party: Yonsei University
ClinicalTrials.gov Identifier: NCT02138695    
Other Study ID Numbers: 4-2014-0104
First Posted: May 14, 2014    Key Record Dates
Last Update Posted: March 18, 2019
Last Verified: March 2019
Keywords provided by Yonsei University:
atrial fibrillation
catheter ablation
Additional relevant MeSH terms:
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Atrial Fibrillation
Arrhythmias, Cardiac
Heart Diseases
Cardiovascular Diseases
Pathologic Processes