Effects Rapid Atrial Pacing Has on the Electrocardiogram (ECG) in Patients With Dual Chamber Pacemakers

Completed

Conditions studied: Prolonged QT Interval

In brief

The purpose of this study is to learn what effect rapid atrial pacing (in patients with dual chamber pacemakers) will have on the electrocardiogram including the QT Interval. The investigators are also interested in the differences caused by genes.

Key facts

Study ID

NCT00883610

Run by

Vanderbilt University

People needed

12

Starts

2009-04-01

Expected to finish

2012-06-01

Last updated by the study team

2014-12-11

Who can join

Age: 21 and older. Sex: any. Healthy volunteers: not accepted.

You may qualify if…

• Must be at least 21 years old
• Must have a dual chamber pacemaker implanted more than three months ago
• Must be followed by the Vanderbilt University Medical Center's Arrhythmia Device Clinic
• The indication for the pacemaker must not be related to coronary artery disease (CAD) or congestive heart failure (CHF)

You may not qualify if…

• Cannot be pacemaker dependent
• History of ventricular arrhythmias and/or implantable defibrillators (ICDs)
• History of paroxysmal, persistent, or permanent atrial fibrillation (AF)
• Congenital long QT syndrome
• History of coronary artery disease
• History of, or currently receiving, treatment for congestive heart failure
• Unable to tolerate dual-chamber pacing (DDD) at 90 bpm due to palpitations, chest pain, shortness of breath, lightheadedness, dizziness, or presyncope
• Pregnant women
• Any patient without specific documentation of an echocardiogram negative for CHF (systolic or diastolic dysfunction)within five years prior to study enrollment
• Any patient without specific documentation of an objective diagnostic test to rule out CAD within five years prior to study enrollment

Where it is running

• Vanderbilt University Medical Center — Nashville, Tennessee, United States

Full record on ClinicalTrials.gov

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