Role of Left Ventricular Pacing Site

June 28, 2007 updated by: University Hospital, Bordeaux

Importance of Left Ventricular Pacing Site in Biventricular Resynchronization Therapy for Severe Heart Failure

Cardiac resynchronization therapy has been shown to be effective in reducing symptoms and mortality in heart failure patients. However, very few is known about the importance of the left ventricular pacing site. We study in a random order 11 different left ventricular pacing sites and compare their hemodynamics using pressure-volume catheters. The consequences on the surface ECG are also assessed.

Study Overview

Status

Unknown

Conditions

Intervention / Treatment

Detailed Description

Background. Cardiac resynchronization therapy has been shown to be effective in reducing symptoms and mortality in heart failure patients. However, very few is known about the importance of the left ventricular pacing site.

Design. Single-blind, monocentric, randomized cross-over study comparing 11 left ventricular pacing sites in a random order.

Intervention. Left ventricular DDD pacing on 11 ventricular sites, prior to the implantation. At each pacing site, a control hemodynamics will be obtained in AAI pacing at the same pacing rate. At each pacing site, 2 AV delays, a short and a long one, will be assessed.

Eligibility criteria. Patients referred for cardiac resynchronization therapy for heart failure

Outcomes. Hemodynamic measures using pressure-volume catheters.

Study Type

Interventional

Enrollment (Anticipated)

33

Phase

  • Not Applicable

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

  • France
      • Pessac, France, 33604
        • Recruiting
        • Hôpital Cardiologique du Haut Lévêque, Rythmology department, Pr CLEMENTY, 3rd Floor
        • Contact:
        • Principal Investigator:
          • Pierre Jaïs, Dr

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

Description

Inclusion Criteria:

  • Heart failure referred for cardiac resynchronization therapy
  • NYHA Class III or IV
  • Informed consent form signed

Exclusion Criteria:

  • Hypertension not controlled by treatment
  • Coronary ischemia not controlled by treatment

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

  • Primary Purpose: Treatment
  • Allocation: Randomized
  • Interventional Model: Crossover Assignment
  • Masking: Single

What is the study measuring?

Primary Outcome Measures

Outcome Measure
Variation in left ventricular dp/dt max

Secondary Outcome Measures

Outcome Measure
pressures and volumes of the left ventricle
stroke work
surface ECG repolarisation

Collaborators and Investigators

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

Sponsor

University Hospital, Bordeaux

Collaborators

Ministry of Health, France

Investigators

  • Principal Investigator: Pierre Jaïs, Dr, University Hospital, Bordeaux

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

November 1, 2003

Study Completion (Anticipated)

December 1, 2007

Study Registration Dates

First Submitted

September 13, 2005

First Submitted That Met QC Criteria

September 13, 2005

First Posted (Estimate)

September 22, 2005

Study Record Updates

Last Update Posted (Estimate)

June 29, 2007

Last Update Submitted That Met QC Criteria

June 28, 2007

Last Verified

June 1, 2007

More Information

Terms related to this study

Keywords

Additional Relevant MeSH Terms

Other Study ID Numbers

  • 9426-01
  • 2001-030

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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