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Clinical Trial Details — Status: Completed

Administrative data

NCT number NCT00289276
Other study ID # 228
Secondary ID
Status Completed
Phase N/A
First received February 7, 2006
Last updated October 5, 2010
Start date November 2003

Study information

Verified date October 2010
Source Medtronic Cardiac Rhythm Disease Management
Contact n/a
Is FDA regulated No
Health authority United States: Food and Drug AdministrationHong Kong: Department of HealthCanada: Canadian Institutes of Health Research
Study type Interventional

Clinical Trial Summary

Heart failure is a progressive disease that decreases the pumping action of the heart. This may cause a backup of fluid in the heart and may result in heart beat changes. Using very low electrical pulses that travel across the inside of the chest cavity, thoracic fluid status monitoring (OptiVol™) can measure the level of resistance to the electrical pulses, which indicates the level of fluid in the chest. The purpose of this study is to collect information related to fluid build up in the chest of subjects with heart failure.


Recruitment information / eligibility

Status Completed
Enrollment 156
Est. completion date
Est. primary completion date April 2008
Accepts healthy volunteers No
Gender Both
Age group 18 Years and older
Eligibility Inclusion Criteria:

- Subjects with one of the following implantable cardioverter defibrillators (ICDs): InSync Marquis™, InSync II Marquis™, Marquis® DR, or InSync III Marquis™.

- Subjects with an ICD placed in the upper part of the left or right side of their chest.

- Subjects with a lead (flexible wire that sends electrical signals from the ICD directly to the heart tissue) that is inserted through a vein and placed in the right ventricle (RV) of the heart (a transvenous RV lead).

- Subjects who underwent the ICD implant procedure, or any readjusting of the ICD, 30 days or more prior to enrolling in the study.

Exclusion Criteria:

- Subjects who are already enrolled in another clinical study.

- Subjects who have received a heart transplant.

- Subjects who are unable or unwilling to follow the study schedule of visits.

Study Design

Allocation: Non-Randomized, Intervention Model: Single Group Assignment, Masking: Double Blind (Subject, Investigator), Primary Purpose: Diagnostic


Intervention

Device:
Fluid Status Monitoring (OptiVol™)
Thoracic Fluid Status Software downloaded on all subjects enrolled in the trial

Locations

Country Name City State
Canada University of Calgary/Foothills Hospital Calgary Alberta
Canada Kingston General Hospital Kingston Ontario
China Queen Mary Hospital Pok Fu Lam Hong Kong
China Prince of Wales Hospital/The Chinese University of Hong Kong Shatin Hong Kong
United States Alaska Cardiovascular Research Foundation Anchorage Alaska
United States Palm Beach Heart Institute Atlantis Florida
United States Texas Cardiac Arrhythmia Research Austin Texas
United States Cleveland Clinic Foundation Department of Hear Failure/Transplantation Cleveland Ohio
United States The Ohio State University Hospital Columbus Ohio
United States Genesis Medical Center Davenport Iowa
United States The Pavillion at Doylestown Hospital Doylestown Pennsylvania
United States Duke University Medical Center Durham North Carolina
United States Fort Wayne Cardiology Ft. Wayne Indiana
United States North Shore University Hospital Manhasset New York
United States Michigan Cardiovascular Institute Saginaw Michigan
United States Intermountain Medical Center Salt Lake City Utah

Sponsors (1)

Lead Sponsor Collaborator
Medtronic Cardiac Rhythm Disease Management

Countries where clinical trial is conducted

United States,  Canada,  China, 

Outcome

Type Measure Description Time frame Safety issue
Primary Number of Subjects With at Least 30 Days of Daily Impedance Measurements Impedance measurements were presented graphically over time in relation to clinical events for all subjects with at least 30 days of follow-up and impedance data collected during the follow-up period. Up to 36 months. No
Secondary Change in Thoracic Impedance Associated With Heart Failure (HF) Hospitalization for an Exacerbation of HF Difference in mean thoracic impedance: post-hospitalization minus pre-hospitalization. 3 days pre-admission and 3 days post-discharge No
Secondary Change in Thoracic Impedance Associated With Heart Failure (HF) Outpatient Treatment of an Exacerbation of HF Difference in mean thoracic impedance: post-outpatient visit minus pre-outpatient visit. 1 day pre and 1 day post-outpatient visit No
Secondary Number of Adverse Events All adverse events were collected for this trial such as (but not limited to): Atrial Fibrillation, Chest Pain, Pneumonia, Cold/Flu From enrollment to study exit (up to 36 months). No
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