Atrio-Ventricular (AV) Delay Optimization Using Echocardiography Versus the SonR Signal (SonR Pilot)
The purpose of this study is to evaluate an external device (SonR sensor) that is capable of detecting sounds created by the heart (SonR signal). Based on the sounds created by the heart and recorded by the SonR sensor, optimal timing settings for the cardiac resynchronization therapy defibrillator (CRT-D) device may be determined. The investigators will then compare the timing settings suggested by SonR to the settings suggested from the echocardiogram. The objective of this study is to determine if differences exist between these different methods of timing the contractions of the top and bottom chambers of the heart and if the SonR signal is able to produce results similar to those of an echocardiogram.
|Study Design:||Intervention Model: Single Group Assignment
Masking: Open Label
|Official Title:||Atrio-Ventricular Delay Optimization in Patients Implanted With a Cardiac Resynchronization Device Using Echocardiography Versus the SonR Signal: A Pilot Study|
- Optimal blood flow method [ Time Frame: 3 months ] [ Designated as safety issue: No ]To determine the best method of timing the contractions of the top and bottom chambers of the heart by using echocardiography versus using signals of the external SonR sensor.
|Study Start Date:||January 2011|
|Study Completion Date:||July 2012|
|Primary Completion Date:||July 2012 (Final data collection date for primary outcome measure)|
All patients will have an echocardiogram and SonR sensor readings completed.
All patients will have an echocardiograph and SonR sensor readings
Please refer to this study by its ClinicalTrials.gov identifier: NCT01287234
|United States, Georgia|
|Piedmont Heart Institute|
|Atlanta, Georgia, United States, 30309|
|Principal Investigator:||Dan Dan, MD||Piedmont Heart Institute|