Ventricular Rate Regularization for Improved Quality of Life in Patients With CHF and AF (VRR)
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.
ClinicalTrials.gov Identifier: NCT00583921
(no subjects enrolled)
Single center investigator initiated sponsored by Guidant Boston Scientific Corp. to evaluate the benefit of ventricular rate regularization (VRR) in patients with congestive heart failure (CHF) and significant atrial fibrillation (AF) burden.
Choosing to participate in a study is an important personal decision. Talk with your doctor and family members or friends about deciding to join a study. To learn more about this study, you or your doctor may contact the study research staff using the contacts provided below. For general information, Learn About Clinical Studies.
Ages Eligible for Study:
18 Years to 85 Years (Adult, Senior)
Sexes Eligible for Study:
Accepts Healthy Volunteers:
Patients implanted with a new Guidant ICD/ CRT-D: Indication for CRT-D and ICD with history of atrial fibrillation. Patients with new implants will not be enrolled until their three month follow up visit in the pacemaker clinic.
Patients currenlty implanted with a Guidant ICD/ CRT-D: More than 20% atrial fibrillation burden as recorded by defibrillator follow up report or with history of atrial fibrillation.
Be between 18-85 years old
Be willing and able to give informed consent
Patient currently has a CRT-D or ICD with > 20% atrial fibrillation burden as recorded by defibrillator follow up report or a history of atrial fibrillation prior to implant.
Patient has the ability to complete a Six minute walk test with the only limiting factors to be fatigue or shortness of breath.
Expected mortality less than 6 months due to non-cardiac causes.