AVERT-AF: Atrio-VEntricular Junction Ablation Followed by Resynchronization Therapy in Patients With Congestive Heart Failure and Atrial Fibrillation
Overview
- Phase
- N/A
- Intervention
- Not specified
- Conditions
- Atrial Fibrillation
- Sponsor
- Abbott Medical Devices
- Enrollment
- 14
- Locations
- 1
- Primary Endpoint
- Exercise duration
- Status
- Terminated
- Last Updated
- 7 years ago
Overview
Brief Summary
The purpose of the study is to determine if the combination of AVJ ablation followed by BiV pacing significantly improves functional status and exercise capacity compared to pharmacologic rate control in patients with chronic AF and depressed ejection fraction, regardless of rate or QRS duration.
Detailed Description
* This is a prospective, randomized, double blinded, multicenter study * Patients meeting all the enrollment criteria are screened at enrollment and randomized to Group 1 (Pharmacological therapy + Single Chamber ICD) or Group 2 (AVJ Ablation + CRT-D) * Screened patients are implanted with a FDA approved SJM ICD/CRT-D with compatible lead system * Patients are followed at 1, 3, 6 and 12 months post implant * Total # of centers - 20 centers * Sample size - 180 patients
Investigators
Eligibility Criteria
Inclusion Criteria
- •Symptomatic permanent AF
- •Class I or II indication for ICD
- •LVEF ≤ 35% within 6 months
- •NYHA class II or III with a history of CHF
- •Maximal tolerated drug therapy for CHF and rate control with a stable regimen for ≥ 30 days
- •Ability to independently comprehend and complete a QoL questionnaire
- •Ability to give informed consent for study participation and willingness and ability to comply with prescribed follow-up tests and scheduled evaluations
Exclusion Criteria
- •Paroxysmal or persistent AF
- •Class I indication for pacing (including AVJ ablation for poor rate control)
- •Ability to walk ≥ 450 meters in 6 minutes
- •Musculoskeletal disorders that prohibit the completion of a 450 meters walk
- •NYHA class I or IV at the time of enrollment
- •A contraindication to taking Coumadin therapy
- •History of myocardial infarction, percutanous coronary intervention, or CABG in the past 30 days
- •History of mitral valve surgery
- •Prior attempts for cardiac resynchronization therapy
- •The presence of an existing coronary sinus lead or epicardial lead
Outcomes
Primary Outcomes
Exercise duration
Time Frame: 12 month post implant
Secondary Outcomes
- LVEF(12 month post implant)
- Quality of Life (QOL) via Minnesota Living With Heart Failure (MLWH) questionnaire(12 month post implant)
- NYHA Class Progression(12 month post implant)