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Clinical Trial Details — Status: Recruiting

Administrative data

NCT number NCT03357926
Other study ID # 29-229 ex 16/17
Secondary ID
Status Recruiting
Phase
First received
Last updated
Start date March 1, 2017
Est. completion date December 2024

Study information

Verified date September 2023
Source Medical University of Graz
Contact Daniel Scherr, Assoc.Prof. PD Dr.
Phone +4331638512544
Email daniel.scherr@medunigraz.at
Is FDA regulated No
Health authority
Study type Observational

Clinical Trial Summary

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).


Recruitment information / eligibility

Status Recruiting
Enrollment 250
Est. completion date December 2024
Est. primary completion date December 2024
Accepts healthy volunteers No
Gender All
Age group 18 Years and older
Eligibility 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 Design


Related Conditions & MeSH terms


Intervention

Diagnostic Test:
24 hour Holter ECG Monitoring
24 hour Holter ECG Monitoring

Locations

Country Name City State
Austria Medical University of Graz Graz

Sponsors (1)

Lead Sponsor Collaborator
Medical University of Graz

Country where clinical trial is conducted

Austria, 

Outcome

Type Measure Description Time frame Safety issue
Primary Frequency of occurrence of atrial high rate episodes 6 months
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