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Effectiveness and Reliability of VectSelect™ Feature for Avoidance of Phrenic Nerve Stimulation in Cardiac Resynchronisation Therapy (CRT) Patients (Efface)

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ClinicalTrials.gov Identifier: NCT01244308
Recruitment Status : Completed
First Posted : November 19, 2010
Last Update Posted : July 29, 2013
Information provided by (Responsible Party):

Study Description
Brief Summary:
It's the aim of this study to analyse efficacy and reliability of VectSelect Feature for avoidance of phrenic nerve stimulation in cardiac resynchronisation therapy (CRT) patients.

Condition or disease
Heart Failure

Study Design

Study Type : Observational
Actual Enrollment : 132 participants
Observational Model: Case-Only
Time Perspective: Prospective
Official Title: Effectiveness and Reliability of VectSelect™ Feature for Avoidance of Phrenic Nerve Stimulation in CRT Patients
Study Start Date : March 2008
Primary Completion Date : September 2009
Study Completion Date : August 2011
Groups and Cohorts

Outcome Measures

Primary Outcome Measures :
  1. Amount of patients with at least one acceptable LV pacing configuration. [ Time Frame: First Follow Up after hospital discharge (approx. 1-3 months) ]

    Amount of patients with at least one acceptable, programmable LV pacing configuration. Definition of acceptable LV pacing configuration: LV pacing threshold <=2.5V@0.5ms AND Phrenic nerve threshold is at least twice as high as LV pacing threshold AND LV pacing impedance >=200 Ohms.

    Only patients with implanted CRT-D and bipolar leftventricular lead are taken into account.

Eligibility Criteria

Information from the National Library of Medicine

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Ages Eligible for Study:   18 Years and older   (Adult, Senior)
Sexes Eligible for Study:   All
Accepts Healthy Volunteers:   No
Sampling Method:   Non-Probability Sample
Study Population
Patients with indication for implantation of CRT-D device

Inclusion Criteria:

  • indication for CRT-D implantation / upgrade
  • written informed consent

Exclusion Criteria:

  • pregnancy
  • age < 18 years
  • patients, who cannot visit the routine follow ups (within first 3.5months)
  • participants to other studies with active treatment arm
Contacts and Locations

Information from the National Library of Medicine

To learn more about this study, you or your doctor may contact the study research staff using the contact information provided by the sponsor.

Please refer to this study by its ClinicalTrials.gov identifier (NCT number): NCT01244308

Medizinische Einrichtungen der RWTH Aachen
Aachen, Germany, 52074
Hufeland Klinikum GmbH
Bad Langensalza, Germany, 99947
Cardioangiologisches Centrum Bethanien
Frankfurt am Main, Germany, 60389
Universitätsklinikum Gießen und Marburg GmbH Sitz Gießen
Gießen, Germany, 35392
Universitäres Herzzentrum Hamburg GmbH (UHZ)
Hamburg, Germany, 20246
Katholisches Krankenhaus Marienhospital Universitätsklinik
Herne, Germany, 44625
Klinikum Kassel gGmbH
Kassel, Germany, 34125
Universitätsklinikum Leipzig AÖR
Leipzig, Germany, 04103
Niels-Stensen-Kliniken Marienhospital
Osnabrück, Germany, 49074
Klinikum Dorothea Christiane Erxleben GmbH
Quedlinburg, Germany, 06484
Sponsors and Collaborators
St. Jude Medical
Principal Investigator: Norbert Klein, Dr. med. Universitätsklinikum Leipzig AÖR
More Information

Responsible Party: St. Jude Medical
ClinicalTrials.gov Identifier: NCT01244308     History of Changes
Other Study ID Numbers: T86
First Posted: November 19, 2010    Key Record Dates
Last Update Posted: July 29, 2013
Last Verified: July 2013

Keywords provided by St. Jude Medical:
Phrenic nerve stimulation
LV pacing configuration
Cardiac resynchronisation therapy
Heart failure

Additional relevant MeSH terms:
Heart Failure
Heart Diseases
Cardiovascular Diseases