Implantable Cardioverter Defibrillator (ICD) Function During Ventricular Assist Device (VAD) Implantation

This study is enrolling participants by invitation only.
Information provided by (Responsible Party):
Virginia Commonwealth University Identifier:
First received: April 10, 2012
Last updated: March 9, 2016
Last verified: March 2016
The purpose of this research study is to test the function of a subjects implantable cardioverter defibrillator (ICD) function throughout the duration of their heart surgery. ICD function can be altered during some types of heart surgery such as those when a pump (ventricular assist device - VAD) is implanted. The investigators would like to study the mechanism of device and ICD malfunction.

Heart Failure

Study Type: Observational
Study Design: Observational Model: Case Control
Time Perspective: Prospective
Official Title: Implantable Cardioverter Defibrillator (ICD) Function During Ventricular Assist Device (VAD) Implantation

Resource links provided by NLM:

Further study details as provided by Virginia Commonwealth University:

Primary Outcome Measures:
  • observational study to assess potential changes that may occur in the RV ICD lead function during LVAD implantation and what mechanism may cause those changes in RV ICD lead function [ Time Frame: RV ICD lead function will be measured throughout LVAD placement , at 1 week post LVAD placement, and 3 months post LVAD placement Description: ] [ Designated as safety issue: No ]

Estimated Enrollment: 40
Study Start Date: May 2011
Estimated Study Completion Date: April 2016
Estimated Primary Completion Date: April 2016 (Final data collection date for primary outcome measure)
Study Group - Control Group
VAD implantation (study group) or other cardiothoracic surgery (control group)

Detailed Description:
ICD function is typically measured prior to and after surgery. For the study, the investigators will measure ICD lead function multiple times throughout the surgery as well, to determine if and when device malfunction occurs. ICD lead function is measured noninvasively through a specialized computer the same way it is checked in the clinic. In addition, the investigators will test ICD function as they usually do following surgery.

Ages Eligible for Study:   18 Years and older
Genders Eligible for Study:   Both
Accepts Healthy Volunteers:   No
Sampling Method:   Probability Sample
Study Population
Patients with wireless ICDs undergoing VAD implantation (study group) or other cardiothoracic surgery (control group) will be included.

Inclusion Criteria:

  • Patients ages 18 and older
  • Have a wireless implantable cardioverter defibrillator (ICD) and are undergoing VAD implantation or other cardiothoracic surgery.

Exclusion Criteria:

  • Patients who are pacemaker dependent
  • children, human fetuses, neonates
  • prisoners will not be included
  • Pregnant women will not be included
  Contacts and Locations
Choosing to participate in a study is an important personal decision. Talk with your doctor and family members or friends about deciding to join a study. To learn more about this study, you or your doctor may contact the study research staff using the Contacts provided below. For general information, see Learn About Clinical Studies.

Please refer to this study by its identifier: NCT01576562

United States, Virginia
Virginia Commonwealth University
Richmond, Virginia, United States, 23298
Sponsors and Collaborators
Virginia Commonwealth University
Principal Investigator: Jordana Kron, MD Virginia Commonwealth University
  More Information

Responsible Party: Virginia Commonwealth University Identifier: NCT01576562     History of Changes
Other Study ID Numbers: HM13674 
Study First Received: April 10, 2012
Last Updated: March 9, 2016
Health Authority: United States: Institutional Review Board

Keywords provided by Virginia Commonwealth University:
Implantable Cardioverter Defibrillator
Ventricular Assist Device processed this record on April 27, 2016