Prospective Database for Prediction of Atrial Fibrillation in Pacemaker and ICD Patients (SAFE-ME)

November 19, 2024 updated by: Medical University of Graz

SAFE-ME - Prospective Database for Prediction of Atrial Fibrillation in Pacemaker and ICD Patients

Atrial fibrillation (AF) is associated with a five-fold increased risk of cerebrovascular stroke. While the risk of stroke in patients with known AF can be calculated via AF stroke prediction risk scores, the prediction of AF occurrence per se in individual patients remains difficult.

We will recruit 250 patients with an implanted dual-chamber Pacemaker (PM) or an implantable cardioverter Defibrillator (ICD) with atrial lead to ensure continuous rhythm monitoring during follow up. At baseline, we will gather clinical and device data of patients. For AF prediction based on surface Electrocardiography (ECG), 24-h Holter ECG monitoring will be performed. After 6 months, we will assess the occurrence of AF during the study period via interrogation of PM/ICD. The resulting data will be used to develop algorithms including clinical, device and ECG data for prediction of the development of AF in individual patients. If possible, we will develop a risk score of high accuracy by combination of demographical, clinical and technical parameters of device patients. The resulting risk score could potentially help to facilitate the decision if anticoagulation is necessary in patients with either risk of AF or embolic stroke of unknown origin. Furthermore, Hayn et al. (AIT Austrian Institute of Technology) are currently developing algorithms to predict the occurrence of AF surface ECG data. It is an additional aim of this project to support the development of this algorithm in pacemaker and ICD patients and to increase the accuracy of AF prediction with clinical parameters and other parameters available to patients with implanted pacemaker (PM) or implanted cardioverter-defibrillator (ICD).

Study Overview

Status

Recruiting

Conditions

Intervention / Treatment

Study Type

Observational

Enrollment (Estimated)

250

Contacts and Locations

This section provides the contact details for those conducting the study, and information on where this study is being conducted.

Study Contact

Study Locations

  • Austria
      • Graz, Austria, 8036
        • Recruiting
        • Medical University of Graz
        • Contact:
          • Daniel Scherr, Assoc.Prof. PD Dr.

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

Sampling Method

Probability Sample

Study Population

Patients with an implanted dual-chamber Pacemaker or an implantable cardioverter Defibrillator

Description

Inclusion Criteria:

  • Implanted pacemaker or implanted cardioverter defibrillator (ICD) with atrial lead
  • CHADS-VASc Score of 2 or more
  • Sinus rhythm or atrial paced rhythm
  • Atrial stimulation rate 50% or less
  • ModeSwitch rate 50% or less since last pacemaker interrogation

Exclusion Criteria:

  • pacemaker or ICD malfunction
  • atrial fibrillation (AF) at time of pacemaker / ICD interrogation
  • AF during 24-hour Holter ECG monitoring
  • permanent AF

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

  • Observational Models: Cohort
  • Time Perspectives: Prospective

Cohorts and Interventions

Group / Cohort
Intervention / Treatment
Observation Group
Diagnostic test: 24 hour Holter ECG Monitoring
24 hour Holter ECG Monitoring

What is the study measuring?

Primary Outcome Measures

Outcome Measure
Time Frame
Frequency of occurrence of atrial high rate episodes
Time Frame: 6 months
6 months

Collaborators and Investigators

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

Sponsor

Medical University of Graz

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 (Actual)

March 1, 2017

Primary Completion (Estimated)

December 1, 2025

Study Completion (Estimated)

December 1, 2025

Study Registration Dates

First Submitted

November 24, 2017

First Submitted That Met QC Criteria

November 24, 2017

First Posted (Actual)

November 30, 2017

Study Record Updates

Last Update Posted (Actual)

November 21, 2024

Last Update Submitted That Met QC Criteria

November 19, 2024

Last Verified

November 1, 2024

More Information

Terms related to this study

Additional Relevant MeSH Terms

Other Study ID Numbers

  • 29-229 ex 16/17

Plan for Individual participant data (IPD)

Plan to Share Individual Participant Data (IPD)?

NO

Drug and device information, study documents

Studies a U.S. FDA-regulated drug product

No

Studies a U.S. FDA-regulated device product

No

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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