Guided Placement of CRT-Leads (EK138/08)

July 6, 2011 updated by: RWTH Aachen University

CT and 3D-Echocardiography Placement of CRT-Leads

In this open, prospective, randomized, parallel group, German-American, two-center, Phase I study the standard-approach CRT-implantation will be compared to a guided CRT-implantation after determining the site of latest contraction and placement of the electrode as close as possible to this site, using a 5-step-scheme of imaging methods determining the site of latest contraction prior to implantation.

Study Overview

Status

Completed

Conditions

Intervention / Treatment

Detailed Description

Patients will be allocated to two groups with either

  1. Guided implantation of the left ventricular lead
  2. Empirical implantation of the left ventricular lead (current clinical standard)

For Treatment Group a) the target vessel, which is the vessel with smallest distance between RLC and CVS is determined in advance and provided to the implanting physician. In case, this vessel is not amenable for lead positioning, a second vessel which is the second closest to the RLC is defined.

For Treatment Group b), the physician has to choose the vessel where to place the electrode without knowing the exact spatial orientation between that particular side-branch and the RLC.

In all patients, standard biventricular devices and leads are to be used. Aspects that are evaluated are:

  1. Technical success in placing the electrode in the target vessel.
  2. Failure due to dislocation during the implantation procedure or phrenic nerve stimulation.

Also, procedure duration, radiation exposure, and complications occurring during the procedure as well as post- operatively will be documented.

Study Type

Interventional

Enrollment (Anticipated)

132

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

  • Germany
    • NRW
      • Aachen, NRW, Germany, 52074
        • Department of Medicine, Division of Cardiology, Pulmonology and Vascular Medicine

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:

  • Congestive heart failure,
  • Ejection fraction <35%,
  • Complete left bundle branch block >120ms,
  • NYHA II,III or IV

Exclusion Criteria:

  • Patients not fulfilling the inclusion criteria or not capable/mental able to understand and follow the instructions;
  • Impaired kidney function (GFR <30ml/min;
  • Pregnant or breastfeeding women

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: Parallel Assignment
  • Masking: None (Open Label)

Arms and Interventions

Participant Group / Arm
Intervention / Treatment
Experimental: 1
guided implantation of the left ventricular lead
Device: Beutel TM
application of BeutelTM
Placebo Comparator: 2
standard implantation of the left ventricular lead
Other: standard
standard procedure will be applied but no Beutel TM software
Experimental: Pilot Group
feasibility of guided placement of CRT-leads in 20 Patients
Device: software Beutel TM
application of BeutelTM to patients data for determination of site of latest contraction

What is the study measuring?

Primary Outcome Measures

Outcome Measure
Time Frame
Rate of non-responders regarding ejection fraction
Time Frame: 6 months
6 months

Secondary Outcome Measures

Outcome Measure
Time Frame
rate of non-responders regarding NYHA-classification, left end-diastolic and end-systolic volume
Time Frame: 6 months
6 months

Collaborators and Investigators

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

Sponsor

RWTH Aachen University

Collaborators

University of Chicago

Investigators

  • Principal Investigator: Christian Knackstedt, MD, RWTH Aachen University Departement of Cardiology, Pulmonology and Vascular Medicine

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

October 1, 2008

Primary Completion (Actual)

April 1, 2011

Study Completion (Actual)

June 1, 2011

Study Registration Dates

First Submitted

September 26, 2008

First Submitted That Met QC Criteria

September 29, 2008

First Posted (Estimate)

October 1, 2008

Study Record Updates

Last Update Posted (Estimate)

July 7, 2011

Last Update Submitted That Met QC Criteria

July 6, 2011

Last Verified

July 1, 2011

More Information

Terms related to this study

Keywords

Additional Relevant MeSH Terms

Other Study ID Numbers

  • CRT-Study

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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