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TRENDS: A Prospective Study of the Clinical Significance of Atrial Arrhythmias Detected by Implanted Device Diagnostics

This study has been completed.
Information provided by:
Medtronic Cardiac Rhythm and Heart Failure Identifier:
First received: January 18, 2006
Last updated: December 10, 2008
Last verified: December 2008
The purpose of this study is to look at the heart rate and rhythm information collected daily in Medtronic implantable pulse generators (IPG), implantable cardioverter defibrillators (ICD) and cardiac resynchronization therapy (CRT) devices. The study will gather this information from many patients to see if heart rate or rhythm data can predict the risk of a patient having a medical condition such as stroke.

Condition Intervention
Atrial Fibrillation
Heart Failure
Device: Diagnostic

Study Type: Observational
Study Design: Time Perspective: Prospective
Official Title: TRENDS: A Prospective Study of the Clinical Significance of Atrial Arrhythmias Detected by Implanted Device Diagnostics

Resource links provided by NLM:

Further study details as provided by Medtronic Cardiac Rhythm and Heart Failure:

Estimated Enrollment: 3100
Study Start Date: November 2003
Study Completion Date: June 2007
Primary Completion Date: June 2007 (Final data collection date for primary outcome measure)

Ages Eligible for Study:   18 Years and older   (Adult, Senior)
Sexes Eligible for Study:   All
Accepts Healthy Volunteers:   No

Inclusion Criteria:

  • Subject provides written informed consent and privacy/protection authorization.
  • Subjects 65 years of age or older.


  • Subjects with age >18 and < 65 years and one of the following stroke risk factors:
  • Prior stroke or TIA
  • Diagnosis of hypertension (HTN)
  • Diagnosis of Diabetes Mellitus (DM)
  • Diagnosis of Congestive Heart Failure (CHF)
  • Subjects who meet the Class I/Class II indications for a dual chamber implantable pulse generator or dual chamber implanted cardioverter defibrillator device


• Subjects who meet the criteria for indication of a dual chamber resynchronization device with bi-ventricular pacing (moderate to severe CHF symptoms [NYHA Class III-IV] despite optimal medical therapy, left ventricular ejection fraction ≤ 35%, and a QRS duration ≥130 ms)13.

Exclusion Criteria:

  • Subjects who are to receive a replacement IPG, ICD or CRT device.
  • Subjects with chronic (permanent) AT/AF.
  • Subjects with a history of AV nodal dependent arrhythmias.
  • Subjects with a terminal illness who are not expected to survive more than 6 months.
  • Subjects who are unwilling or unable to cooperate or give written informed consent and privacy/protection authorization, or subjects whose legal representatives or legal guardians refuse to give informed consent or privacy/protection authorization.
  • Subjects currently receiving treatment in another drug and/or device study which could affect the outcome of the trial.
  • Subjects who are or will be inaccessible for follow-up at a qualified study center.
  Contacts and Locations
Choosing to participate in a study is an important personal decision. Talk with your doctor and family members or friends about deciding to join a study. To learn more about this study, you or your doctor may contact the study research staff using the Contacts provided below. For general information, see Learn About Clinical Studies.

Please refer to this study by its identifier: NCT00279981

  Show 100 Study Locations
Sponsors and Collaborators
Medtronic Cardiac Rhythm and Heart Failure
Principal Investigator: Emile Daoud, MD Riverside Hospital
Principal Investigator: Taya Glotzer, MD Hackensack University Medical Center
  More Information

Publications automatically indexed to this study by Identifier (NCT Number): Identifier: NCT00279981     History of Changes
Other Study ID Numbers: 219
Study First Received: January 18, 2006
Last Updated: December 10, 2008

Keywords provided by Medtronic Cardiac Rhythm and Heart Failure:
Atrial fibrillation
Implantable Cardiac Defibrillator
Resynchronization systems

Additional relevant MeSH terms:
Heart Failure
Atrial Fibrillation
Heart Diseases
Cardiovascular Diseases
Arrhythmias, Cardiac
Pathologic Processes processed this record on April 28, 2017