Prospective Assessment After Pediatric Cardiac Ablation (PAPCA)

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: NCT00005553
Recruitment Status : Completed
First Posted : May 26, 2000
Last Update Posted : January 12, 2016
National Heart, Lung, and Blood Institute (NHLBI)
Information provided by:
Stanford University

Brief Summary:
To evaluate children undergoing catheter ablation at pediatric centers in North America in order to provide information on the incidence rate of serious cardiac damage as a result of ablation, the incidence rate and time course of recurrence after initially successful ablation, and the incidence rate of proarrhythmia following ablation.

Condition or disease Intervention/treatment
Cardiovascular Diseases Heart Diseases Arrhythmia Tachycardia, Supraventicular Procedure: Catheter Ablation

Detailed Description:


Radiofrequency catheter ablation is a catheterization laboratory technique for the cure of cardiac arrhythmias, which has become common in pediatric cardiology practice. Recent analyses have suggested that ablation therapy is more cost-effective compared not only with surgery, but also with antiarrhythmic medication. Despite a good initial success rate of the technique, and a low initial complication rate, there is concern about possible long-term effects with the technique in the pediatric age group. There are reports not only of damage to cardiac valves, but also the development of new arrhythmias, including sudden death, as a result of ablations in children. Recurrences are observed frequently following initially successful procedures. Finally, there are animal data to suggest that immature myocardium is more prone to severe damage as a result of ablation procedures. Few, if any, data exist to support the long-term safety of these ablation techniques in children. Therefore, before ablation therapy becomes the standard approach in children, it is important to carefully assess the long-term risks in this patient group.


Multi-center, prospective, five-year study. The collection of these data was intended to provide the following information: 1) the incidence of serious cardiac damage as a result of ablation; 2) the incidence and time course of recurrence after initially successful ablation; and 3) the incidence of proarrhythmia following ablation. A total of 480 pediatric patients were enrolled prospectively and evaluated both before ablation of supraventricular tachycardia and at intervals following ablation with clinical history and examination, electrocardiogram, 24-hour Holter monitor, and echocardiogram, with non-invasive studies read by outside consultants. In addition, a complete Registry of pediatric patients undergoing ablation at the participating centers was established to allow comparisons with the study group and to provide population estimates of success and complication rates.

Study Type : Observational
Study Start Date : May 1998
Study Completion Date : April 2004

Information from the National Library of Medicine

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Ages Eligible for Study:   up to 16 Years   (Child)
Sexes Eligible for Study:   All
Accepts Healthy Volunteers:   No
No eligibility criteria

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): NCT00005553

Sponsors and Collaborators
Stanford University
National Heart, Lung, and Blood Institute (NHLBI)
OverallOfficial: George Van Hare Stanford University

Publications: Identifier: NCT00005553     History of Changes
Other Study ID Numbers: 5097
R01HL058620 ( U.S. NIH Grant/Contract )
First Posted: May 26, 2000    Key Record Dates
Last Update Posted: January 12, 2016
Last Verified: October 2005

Additional relevant MeSH terms:
Cardiovascular Diseases
Heart Diseases
Arrhythmias, Cardiac
Pathologic Processes