Optivol Diagnostic Data for Discharge in Heart Failure (3DHF)

August 18, 2010 updated by: Thomas Jefferson University

Comparing ICD Device Diagnostics to Hospitalized Heart Failure Patient Symptoms and Physician Opinion on Discharge Readiness

The objective of this study is to evaluate whether the heart rate variability, daily heart rate, and/or intrathoracic impedance recorded by implantable cardiac devices can be used in conjunction with other traditional clinical practice methods to determine if heart failure patients are ready for hospital discharge.

Study Overview

Status

Completed

Conditions

Detailed Description

Implantable cardioverter defibrillator (ICD) devices with or without cardiac resynchronization therapy (CRT-D) have the ability to continuously monitor heart rate variability, daily heart rate, and patient activity. Changes in these measures have been associated with heart failure prognosis. In addition, ICD or CRT-D devices also have the ability to measure daily intrathoracic impedance. Previous data have demonstrated that device-based intrathoracic impedance measurements correlate with pulmonary capillary wedge pressure and fluid retention, both of which are common measures of heart failure status. The objective of this study is to evaluate whether the heart rate variability, daily heart rate, and/or intrathoracic impedance can be used in conjunction with other methods to determine if patients are ready for hospital discharge. This will be the first step in potentially developing an inpatient care strategy which includes implantable device data. It is hypothesized that device diagnostic data will identify an appropriate and safe time to discharge patients admitted for worsening heart failure symptoms before usual clinical indicators. More specifically, we hypothesize that device data will "normalize" at least one day prior to the clinical indicators of readiness for discharge and patients discharged prior to "normalization" of the device data will be at greater risk for rehospitalization

Study Type

Observational

Enrollment (Actual)

23

Contacts and Locations

This section provides the contact details for those conducting the study, and information on where this study is being conducted.

Study Locations

  • United States
    • Missouri
      • St. Joseph, Missouri, United States, 64506
        • Heartland Health
    • New Jersey
      • Elmer, New Jersey, United States, 083618
        • Cardiovascular Associates of Delaware Valley
    • Pennsylvania
      • Philadelphia, Pennsylvania, United States, 19107
        • Thomas Jefferson University
      • Philadelphia, Pennsylvania, United States, 19140
        • Temple University
      • Wynnewood, Pennsylvania, United States, 19096
        • Main Line Health Lankenau Hospital

Participation Criteria

Researchers look for people who fit a certain description, called eligibility criteria. Some examples of these criteria are a person's general health condition or prior treatments.

Eligibility Criteria

Ages Eligible for Study

18 years and older (Adult, Older Adult)

Accepts Healthy Volunteers

No

Genders Eligible for Study

All

Sampling Method

Probability Sample

Study Population

The study population is hospitalized patients who have an implanted Medtronic device with Optivol capability.

Description

Inclusion Criteria:

  • Patients implanted with a Medtronic InSync Sentry or subsequent FDA-approved Medtronic device with the OptiVol capability for >30 days.
  • Anticipated hospitalization stay >48 hours
  • Hospitalized patients experiencing worsening heart failure with symptoms of lung/pulmonary congestion.

Exclusion Criteria:

  • Anemia - admission hemoglobin <8.0 g/dL
  • Patients residing in convalescence center prior to admission or known to be discharged to a convalescence center or hospice, where discharge could be based on bed availability

Study Plan

This section provides details of the study plan, including how the study is designed and what the study is measuring.

How is the study designed?

Design Details

  • Observational Models: Cohort
  • Time Perspectives: Prospective

Collaborators and Investigators

This is where you will find people and organizations involved with this study.

Sponsor

Thomas Jefferson University

Collaborators

Medtronic

Investigators

  • Principal Investigator: David J Whellan, MD MHS, Thomas Jefferson University

Study record dates

These dates track the progress of study record and summary results submissions to ClinicalTrials.gov. Study records and reported results are reviewed by the National Library of Medicine (NLM) to make sure they meet specific quality control standards before being posted on the public website.

Study Major Dates

Study Start

December 1, 2006

Primary Completion (Actual)

February 1, 2010

Study Completion (Actual)

February 1, 2010

Study Registration Dates

First Submitted

January 8, 2007

First Submitted That Met QC Criteria

January 8, 2007

First Posted (Estimate)

January 9, 2007

Study Record Updates

Last Update Posted (Estimate)

August 20, 2010

Last Update Submitted That Met QC Criteria

August 18, 2010

Last Verified

August 1, 2010

More Information

Terms related to this study

Keywords

Additional Relevant MeSH Terms

Other Study ID Numbers

  • 06U.232

This information was retrieved directly from the website clinicaltrials.gov without any changes. If you have any requests to change, remove or update your study details, please contact register@clinicaltrials.gov. As soon as a change is implemented on clinicaltrials.gov, this will be updated automatically on our website as well.

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