Guided Placement of CRT-Leads

NCT ID: NCT00764075

Last Updated: 2011-07-07

Study Results

Results pending

The study team has not published outcome measurements, participant flow, or safety data for this trial yet. Check back later for updates.

Basic Information

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Recruitment Status

COMPLETED

Clinical Phase

NA

Total Enrollment

132 participants

Study Classification

INTERVENTIONAL

Study Start Date

2008-10-31

Study Completion Date

2011-06-30

Brief Summary

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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.

Detailed Description

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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.

Conditions

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Heart Failure

Study Design

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Allocation Method

RANDOMIZED

Intervention Model

PARALLEL

Primary Study Purpose

TREATMENT

Blinding Strategy

NONE

Study Groups

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1

guided implantation of the left ventricular lead

Group Type EXPERIMENTAL

Beutel TM

Intervention Type DEVICE

application of BeutelTM

2

standard implantation of the left ventricular lead

Group Type PLACEBO_COMPARATOR

standard

Intervention Type OTHER

standard procedure will be applied but no Beutel TM software

Pilot Group

feasibility of guided placement of CRT-leads in 20 Patients

Group Type EXPERIMENTAL

software Beutel TM

Intervention Type DEVICE

application of BeutelTM to patients data for determination of site of latest contraction

Interventions

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Beutel TM

application of BeutelTM

Intervention Type DEVICE

standard

standard procedure will be applied but no Beutel TM software

Intervention Type OTHER

software Beutel TM

application of BeutelTM to patients data for determination of site of latest contraction

Intervention Type DEVICE

Eligibility Criteria

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Inclusion Criteria

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

* Impaired kidney function (GFR \<30ml/min;
* Pregnant or breastfeeding women
Minimum Eligible Age

18 Years

Eligible Sex

ALL

Accepts Healthy Volunteers

No

Sponsors

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University of Chicago

OTHER

Sponsor Role collaborator

RWTH Aachen University

OTHER

Sponsor Role lead

Responsible Party

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RWTH Aachen University

Principal Investigators

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Christian Knackstedt, MD

Role: PRINCIPAL_INVESTIGATOR

RWTH Aachen University Departement of Cardiology, Pulmonology and Vascular Medicine

Locations

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Department of Medicine, Division of Cardiology, Pulmonology and Vascular Medicine

Aachen, North Rhine-Westphalia, Germany

Site Status

Countries

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Germany

Other Identifiers

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CRT-Study

Identifier Type: -

Identifier Source: org_study_id

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