Exercise in Chronically Paced Children

Completed

Conditions studied: Congenital Diseases, Complete Heart Block, Pacemaker

In brief

The purpose of this study is to evaluate the exercise capacity of patients with complete heart block who are chronically being paced from the right ventricle. Also, we hope to correlate the level of uncoordinated contraction with the patients exercise capacity. We will enroll patients with complete heart block as diagnosed by standard electrocardiographic means and now have a permanent pacemaker. All patients we approach for this study will receive an echocardiogram to assess their heart function. As part of the echocardiogram, they will also receive a Tissue Synchronization Imaging (TSI) evaluation to assess the level of uncoordinated contraction they have. The patients will then be subjected to a cardiac exercise stress test which will involve them running on a treadmill until they cannot continue while data is collected regarding their heart's response to exercise. All portions of the study are noninvasive, which means they work from probes and monitors outside the body.

Key facts

Study ID

NCT00374608

Run by

Emory University

People needed

25

Starts

2007-01-01

Expected to finish

2009-07-01

Last updated by the study team

2012-06-01

Who can join

Age: 10 and older, up to 21. Sex: any. Healthy volunteers: not accepted.

You may qualify if…

• between 10 and 21 years of age
• structurally normal heart
• congenital complete heart block
• dual chamber pacemaker, right ventricular apex paced
• normal function via traditional transthoracic echocardiography

You may not qualify if…

• preexisting condition that precludes patient from exercise
• no informed consent

Where it is running

• Children's Healthcare of Atlanta - Egleston — Atlanta, Georgia, United States

Full record on ClinicalTrials.gov

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