Prospective Randomized Trial Comparing TRIPLE Site ventriculAr Stimulation Versus Conventional Pacing in CRT canDidates

2016-11-15 11:38:21 | BioPortfolio


Cardiac resynchronization therapy (CRT) is a recommended treatment for selected patients with symptomatic heart failure (HF). Although most treated patients show a benefit from CRT, a lack of response is observed for about 25-30% of them whatever the response criteria used either based on the clinical status (NYHA class, Packer clinical composite score) or on ventricular remodeling parameters assessed by echography (Left ventricle end of systole volume). This rate has remained remarkably stable since the therapy started and has motivated many studies to better understand the underlying physiopathology and the CRT action mechanisms.

Among the various research axes to improve CRT response and responders rate, increasing the number of pacing sites in an attempt to better homogenize the cardiac mechanical activity has been evaluated. A configuration with two RV leads and one LV lead was tested acutely in three studies. In all cases, it demonstrated a significant improvement of cardiac performance whether assessed by echographic parameters or LV dp/dt measurements. Additionally feasibility of this approach for long term CRT delivery was demonstrated during a previous study. First results with triple-site ventricular stimulation are encouraging and its clinical efficacy should now be tested on a larger population in order to conclude on its interest for CRT candidates.

Study Design

Allocation: Randomized, Endpoint Classification: Safety/Efficacy Study, Intervention Model: Parallel Assignment, Masking: Open Label, Primary Purpose: Treatment


Cardiac Resynchronization Therapy


Cardiac resynchronization therapy implantation, Stimulation of 3 ventricular sites, Stimulation of 2 ventricular sites, Echocardiography


Rouen University Hospital


Not yet recruiting


University Hospital, Rouen

Results (where available)

View Results


Published on BioPortfolio: 2016-11-15T11:38:21-0500

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Medical and Biotech [MESH] Definitions

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Stimulation of the brain, which is self-administered. The stimulation may result in negative or positive reinforcement.

A technique of brain electric stimulation therapy which uses constant, low current delivered via ELECTRODES placed on various locations on the scalp.

Therapy for MOVEMENT DISORDERS, especially PARKINSON DISEASE, that applies electricity via stereotactic implantation of ELECTRODES in specific areas of the BRAIN such as the THALAMUS. The electrodes are attached to a neurostimulator placed subcutaneously.

Application of electric current in treatment without the generation of perceptible heat. It includes electric stimulation of nerves or muscles, passage of current into the body, or use of interrupted current of low intensity to raise the threshold of the skin to pain.

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Cardiology is a specialty of internal medicine.  Cardiac electrophysiology : Study of the electrical properties and conduction diseases of the heart. Echocardiography : The use of ultrasound to study the mechanical function/physics of the h...

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