Progressive Ventricular Dysfunction Prevention in Pacemaker Patients
- Conditions
- Cardiac Pacing Indication classI/IIa According AHA/ACC
- Interventions
- Procedure: dual-chamber pacemaker implantationProcedure: biventricular dual-chamber pacemaker implant
- Registration Number
- NCT00170326
- Lead Sponsor
- Medtronic Bakken Research Center
- Brief Summary
The purpose of this pilot study is to evaluate the progression of ventricular dysfunction in patients with ventricular dysfunction within the permanent pacing population.
- Detailed Description
The interventricular synchrony is one of the components of a proper cardiac function. When there is no synchrony -as in left bundle block (LBBB)- the clinic consequences should have little importance in patients with a healthy heart or a great importance in patients suffering heart failure (HF), specially in those with severe grade of HF, the benefit of cardiac resynchronization by pacing both ventricles or left ventricle (LV)should means healthy improvement in patients. All previous studies done in HF, are in patients with symptomatic HF. The importance of stop progression of latent HF in patients with asymptomatic ventricular dysfunction (VD)in permanent pacing indication patients. Pacing may accelerate HF progression by dissincronyzing ventricles. ACE inhibitors studies in asymptomatic VD gave positive results.
The PreVent-HF is an international, multicenter, prospective, randomized, single-blinded pilot trial specifically designed to evaluate as main objective the progression of VD in permanent pacing population.
Recruitment & Eligibility
- Status
- COMPLETED
- Sex
- All
- Target Recruitment
- 108
- Meet Class I and/or Class IIa implantation criteria for permanent cardiac pacing according to the guidelines given by the American College of Cardiology (ACC)/American Heart Association(AHA).
- Expected ventricle stimulation <80% of the time
- Impossibility of dual chamber stimulation in the absence of AF
- Severe heart failure (NYHA Functional class III-IV) previous to indication for pacing device implant
- Patient needs revascularization within 3 months
- Myocardial infarction in the last 3 months
- Cardiac surgery performed in the last 3 months
- Hypertrophic cardiomyopathy
- Constrictive pericarditis
- Bad echo window
- Previous system implanted (ICD or pacemaker)
- Aortic stenosis
- Patient has a mechanical right heart valve
- Patient <18 years
- Pregnancy
- Patient has medical conditions that would preclude the testing required by the protocol, or limit study participation
- Life expectancy <1year
- Patient is unwilling or unable to cooperate or give written informed consent.
- Patient is or will be inaccessible for follow-up at the study center.
- Patients who are participating or planning to participate in other clinical trials during the clinical study
Study & Design
- Study Type
- INTERVENTIONAL
- Study Design
- PARALLEL
- Arm && Interventions
Group Intervention Description Dual Chamber pacing dual-chamber pacemaker implantation conventional dual-chamber pacemaker/ICD implantation with the ventricular lead in the right ventricular apex Biventricular pacing biventricular dual-chamber pacemaker implant Biventricular pacing: dual-chamber biventricular pacemaker/ICD implantation with leads at the right ventricular apex and the left ventricle
- Primary Outcome Measures
Name Time Method Evolution of the ejection fraction (EF) of the left ventricle (LV) and the ventricular volumes. 12 months
- Secondary Outcome Measures
Name Time Method Combined endpoint of cardiac mortality, appearance of HF and hospitalization due to cardiovascular problems. Morbidity. 12 months
Trial Locations
- Locations (5)
H. Clínic i Provincial
🇪🇸Barcelona, Spain
H. Puerta de Hierro
🇪🇸Madrid, Spain
H. Infanta Cristina
🇪🇸Badajoz, Spain
Hospital General de Alicante
🇪🇸Alicante, Spain
H. C. U. Virgen de la Victoria
🇪🇸Málaga, Spain