ECG Belt for CRT Response


The purpose of this clinical study is to compare ECG Belt Research System managed cardiac resynchronization therapy (CRT) patients and a control CRT group with respect to left ventricular (LV) remodeling.


  • Heart Failure


Eligible Ages
Over 18 Years
Eligible Genders
Accepts Healthy Volunteers

Inclusion Criteria

  • Indicated for CRT, with QRS duration ≥130 ms, and planned to be implanted with a market-released Medtronic CRT device with AdaptivCRT and a Medtronic quadripolar LV lead. - Meets at least one of the following criteria: QRS duration < 150 ms, Prior documented Myocardial Infarction, Non-LBBB - LVEDD ≥ 55 mm, as determined by site

Exclusion Criteria

  • Permanent/persistent AF or presenting with AF - Pre-existing or previous LV lead or other confounding devices e.g. Left Ventricular Assist Device, Vagal Nerve Stimulator - Currently implanted with IPG or ICD with > 10% RV pacing - Permanent complete AV block - Enrolled in a concurrent study that may confound the results of this study. Pre-approval from the study manager is required for enrollment of a patient that is in a concurrent study. - Less than 1 year life expectancy - Vulnerable adults - Younger than 18 years of age

Study Design

Study Type
Intervention Model
Parallel Assignment
Primary Purpose
Single (Outcomes Assessor)

Arm Groups

ArmDescriptionAssigned Intervention
ECG Belt
The ECG Belt arm will utilize the ECG Belt Research System at implant and all follow up visits.
  • Device: ECG Belt Research System
    The ECG Belt Research System is used to identify the best vector and programming parameters.
No Intervention
Control Arm
Standard CRT through 6 months follow-up.

More Details

Active, not recruiting
Medtronic Cardiac Rhythm and Heart Failure

Study Contact

Detailed Description

The ECG Belt study is a prospective, interventional, randomized, multi-center, investigational, pre-market research study. The ECG Belt Research System will be used at implant and follow-up to help implanters choose a suitable LV pacing site within the recommended locations for LV lead implantation and optimize pacing vector/timing parameters.