Prevalence of Atrial Delay That Would Preclude Optimization of Atrioventricular (AV) Delay in Patients With Biventricular (BiV) Device

Withdrawn before enrolling

Conditions studied: Heart Failure

In brief

The purpose of this study is to determine the proportion of patients who are undergoing Biventricular (BiV) Implantable Cardioverter Defibrillator (ICD) implantation in whom optimization of atrioventricular (AV) delay is not possible due to prolonged inter-atrial/intra-atrial delay. These patients would benefit from left atrial pacing, and if a significant number of patients fall into this group, it may be beneficial to develop a left atrial lead.

Key facts

Study ID

NCT00906100

Run by

University of Texas Southwestern Medical Center

People needed

0

Starts

2008-05-01

Expected to finish

2010-05-01

Last updated by the study team

2019-02-07

Who can join

Age: 18 and older. Sex: any. Healthy volunteers: not accepted.

You may qualify if…

• Age 18 or older
• Have the ability to provide informed consent and willingness to comply with follow-up tests
• QRS duration > 120 ms
• Ejection fraction < 35%
• Persistent symptoms of class III or IV heart failure despite a stable and optimized medical regimen
• Normal sinus rhythm or sinus bradycardia

You may not qualify if…

• White-Parkinson-White syndrome
• Chronic persistent atrial fibrillation
• Complete heart block

Where it is running

• UT Southwestern Medical Center — Dallas, Texas, United States

Full record on ClinicalTrials.gov

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