Left Ventricular Function and Remodelling During Permanent Pacing

The recruitment status of this study is unknown because the information has not been verified recently.
Verified September 2005 by Aarhus University Hospital Skejby.
Recruitment status was  Active, not recruiting
Information provided by:
Aarhus University Hospital Skejby
ClinicalTrials.gov Identifier:
First received: September 26, 2005
Last updated: October 25, 2006
Last verified: September 2005
  1. Background - Pacemaker treatment gives asynchronous activation of the heart that often results in decreased heart function and clinical heart failure. New pacemaker types that stimulates both left and right ventricle ( biventricular pacemakers ) is introduced to the treatment of patients with heart failure, decreased left ventricular function and ECG signs with left bundle branch block.
  2. Hypothesis - Ventricular pacing results in remodelling of the left ventricle and decreased left ventricular function. Biventricular pacing do not do this. Ventricular pacing results in heart failure and increased wall stress with decreased 6 minutes walk test and increased BNP in blood samples. This is not seen by biventricular pacing.
  3. Materials and methods - 3 studies. All patients are examined by echocardiography 2-dimensional, M-mode, 3-dimensional and with tissue harmonic imaging. Study 1) Patients with AV-conduction disorder that needs pacemaker treatment are randomized to DDD-pacemaker or biventricular pacemaker. Study 2) Patients with sick sinus syndrome included in DANPACE are randomized to AAI- or DDD-pacemaker. Study 3 ) Acute study to examine the changes in patients AV-block before DDD-pacemaker implantation and after implantation.

Condition Intervention
Sick Sinus Syndrome
Device: AAI vs. DDD vs. BIV pacing in different patients groups

Study Type: Interventional
Study Design: Allocation: Randomized
Endpoint Classification: Efficacy Study
Intervention Model: Parallel Assignment
Masking: Open Label
Primary Purpose: Treatment
Official Title: Left Ventricular Function and Remodelling During Permanent Pacing

Resource links provided by NLM:

Further study details as provided by Aarhus University Hospital Skejby:

Primary Outcome Measures:
  • 3-dimensional left ventricular ejection fraction

Secondary Outcome Measures:
  • TDI echo parameters
  • 6 MHW
  • NT-proBNP

Estimated Enrollment: 100
Study Start Date: September 2003
Estimated Study Completion Date: July 2006

Ages Eligible for Study:   20 Years and older
Genders Eligible for Study:   Both
Accepts Healthy Volunteers:   No

Inclusion Criteria:

  • Sick sinus syndrome
  • AV-block

Exclusion Criteria:

  • Atrial fibrillation
  • AMI
  • Heart valve disease
  Contacts and Locations
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Please refer to this study by its ClinicalTrials.gov identifier: NCT00228241

Andi Eie Albertsen
Aarhus, Denmark, 8200
Sponsors and Collaborators
Aarhus University Hospital Skejby
Study Chair: Andi Albertsen, MD Physician, Skejby University Hospital
  More Information

Publications automatically indexed to this study by ClinicalTrials.gov Identifier (NCT Number):
ClinicalTrials.gov Identifier: NCT00228241     History of Changes
Other Study ID Numbers: 130472 
Study First Received: September 26, 2005
Last Updated: October 25, 2006
Health Authority: Denmark: Ethics Committee

Keywords provided by Aarhus University Hospital Skejby:
Sick sinus syndrome

Additional relevant MeSH terms:
Sick Sinus Syndrome
Arrhythmia, Sinus
Arrhythmias, Cardiac
Cardiovascular Diseases
Heart Block
Heart Diseases
Pathologic Processes

ClinicalTrials.gov processed this record on May 26, 2016