Survey of QRS Frequency at Various Left Ventricular Pacing Sites for Cardiac Resynchronization



Status:Recruiting
Conditions:Cardiology, Cardiology
Therapuetic Areas:Cardiology / Vascular Diseases
Healthy:No
Age Range:18 - Any
Updated:8/23/2018
Start Date:July 12, 2017
End Date:May 25, 2019
Contact:Mark J Niebauer, MD, PhD
Email:niebaum@ccf.org
Phone:216-444-3160

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Trial Summary
Trial Overview
Inclusion Criteria
LV pacing at various sites with recording of ECG and subsequent signal analysis at different
sites.

During routine cardiac resynchronization pacemaker or implantable defibrillator (ICD)
implantation (including de-novo and upgrade from standard device, additional pacing within 3
different coronary veins will be performed in combination with a previously implanted right
ventricular pacing or ICD lead. The resulting electrocardiogram signal will be analyzed
afterwards. A time-frequency analysis (TFA) of several ECG leads at each paced site will be
performed and compared. The results of the TFA analysis will not be used to select pacing
lead location in this study.

The patient will then receive the left ventricular pacing lead in the standard manner.

Inclusion Criteria:

- Standard implantation for cardiac resynchronization ICD or PM implantation

- Cardiomyopathy with LVEF <35%

- QRS duration greater than 120 msec

Exclusion Criteria:

- Age less than 18 years
We found this trial at
1
site
Cleveland Clinic
9500 Euclid Avenue
Cleveland, Ohio 44106
216.444.2200
Phone: 216-444-3160
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