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Clinical Trial Summary

Magnetic Resonance Image guided delivery of Left and Right Ventricular Leads to optimal myocardial targets will result in improved clinical response to CRT using Left Ventricular remodeling criteria.


Clinical Trial Description

Cardiac Dyssynchrony and scar are important variables for realization of clinical response to cardiac resynchronization therapy (CRT). Results from a previous study suggest that paced heart segment characteristics do predict this response and our ability to identify venous pathways to optimal segments is feasible using cardiac CT and MRI. In an ongoing feasibility study we are using these capabilities to guide the delivery of CRT lead systems to optimal myocardial targets. A computer software program has been developed that can create an interactive, 3D integrated cardiac model of coronary vein anatomy, myocardial scar and mechanical dyssynchrony. Although this feasibility study is ongoing, early results show this method of guiding the CRT leads to optimal targets with these individualized models to be safe and effective.

This trial will be a larger multi-centre randomized blinded trial to determine the therapeutic impact of MRI guided Left Ventricular and Right Ventricular lead placement with respect to improving clinical response rates for CRT. ;


Study Design

Allocation: Randomized, Endpoint Classification: Efficacy Study, Intervention Model: Parallel Assignment, Masking: Double Blind (Subject, Caregiver, Investigator), Primary Purpose: Treatment


Related Conditions & MeSH terms


NCT number NCT01640769
Study type Interventional
Source Lawson Health Research Institute
Contact Kristine Carter, RN
Phone 519-685-8300
Email kris.carter@lhsc.on.ca
Status Not yet recruiting
Phase Phase 3
Start date August 2012
Completion date December 2017

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