NCT05127720

Brief Summary

This is a prospective, non-interventional cohort study. It tests the hypothesis that

  • Pacemaker-derived monitoring of sleep-related breathing disorders and/or daily physical activity predicts clinical outcome.
  • Autonomic imbalance defined by an increased periodic repolarisation dynamics (PRD) predicts clinical outcome in pacemaker patients.
  • Autonomic imbalance defined by an increased periodic repolarisation dynamics (PRD) predicts the occurrence of device-detected atrial fibrillation and/or device-detected sleep apnea.
  • Enviromental factors such as ambient temperature, humidity, precipitation, air pressure impacts device-detected atrial fibrillation and/or device-detected sleep apnea.
  • Variation of night-to-night device-detected sleep apnea shows sex-specific patterns and impacts device-detected atrial fibrillation burden, ventricular pacing rate in sick sinus syndrome and clinical outcomes.
  • Burden / variation of device-detected sleep apnea and/or device-detected atrial fibrillation correlates with the incidence and severity of common ophthalmologic diseases.

Trial Health

77
On Track

Trial Health Score

Automated assessment based on enrollment pace, timeline, and geographic reach

Enrollment
1,000

participants targeted

Target at P75+ for all trials

Timeline
190mo left

Started Nov 2021

Longer than P75 for all trials

Geographic Reach
1 country

1 active site

Status
recruiting

Health score is calculated from publicly available data and should be used for screening purposes only.

Trial Relationships

Click on a node to explore related trials.

Study Timeline

Key milestones and dates

Study Progress22%
Nov 2021Dec 2041

First Submitted

Initial submission to the registry

October 27, 2021

Completed
23 days until next milestone

First Posted

Study publicly available on registry

November 19, 2021

Completed
11 days until next milestone

Study Start

First participant enrolled

November 30, 2021

Completed
20.1 years until next milestone

Primary Completion

Last participant's last visit for primary outcome

December 31, 2041

Expected
Same day until next milestone

Study Completion

Last participant's last visit for all outcomes

December 31, 2041

Last Updated

February 24, 2026

Status Verified

September 1, 2025

Enrollment Period

20.1 years

First QC Date

October 27, 2021

Last Update Submit

February 20, 2026

Conditions

Outcome Measures

Primary Outcomes (5)

  • 3P-MACE

    death, myocardial infarction and/or stroke

    time to first event, follow up for 120 months

  • device-detected atrial fibrillation

    first episode lasting more than 6 minutes or 24 hours

    time to first event, follow up for 120 months

  • device-detected atrial fibrillation

    total burden

    after 1, 3, 5 years

  • device-detected sleep apnea

    severity (RDI \< versus \> 20/h)

    after 1, 3, 5 years

  • device-detected sleep apnea

    variation

    after 1, 3, 5 years

Secondary Outcomes (5)

  • incidence of common opthalmological disease

    assessed within the first year after study enrollment

  • Deterioration of lung function

    after 5 years

  • Progression of subclinical peripheral artery disease

    after 5 years

  • Progression of subclinical peripheral artery disease

    after 5 years

  • QoL assessment

    after 5 years

Study Arms (3)

patients with severe sleep apnea

defined by a pacemaker-derived mean RDI ≥ 20/h in the first 12 months after enrollment

patients with autonomic imbalance

defined by PRD ≥ 5.75deg2 (native) and/or ≥ 3 deg2 (paced) assessed within the first 12 months of enrollment

patients with a sedentary lifestyle

defined by a pacemaker-derived mean daily physical activity level \< 2h in the first 12 months after enrollment

Eligibility Criteria

Age18 Years+
Sexall
Healthy VolunteersNo
Age GroupsAdult (18-64), Older Adult (65+)
Sampling MethodProbability Sample
Study Population

Patients with pacemakers are usually above the age of 65 years, and suffer from common co-morbidities such as arterial hypertension, coronary artery disease, heart failure, COPD, peripheral artery disease, iron insufficiency, sleep disordered breathing, obesity and/or physical inactivity / de-conditioning.

You may qualify if:

  • implanted Microport TEO SR/DR or BOREA SR/DR or ALIZEA SR/DR pacemaker device
  • signed informed consent

You may not qualify if:

  • any contraindication to perform a cardiac CT examination
  • eGFR \< 30 ml/min/1.73 m2
  • allergy against CT contrast medium
  • hyperthyreoism
  • inability of the patient to understand the study purpose and plan
  • inability of the patient to perform baseline examinations
  • pregnancy or breast-feeding; women with childbearing potential
  • estimated life expectancy below one year

Contact the study team to confirm eligibility.

Sponsors & Collaborators

Study Sites (1)

Medical University Innsbruck

Innsbruck, Tyrol, 6020, Austria

RECRUITING

Related Publications (9)

  • Gottlieb DJ, Yenokyan G, Newman AB, O'Connor GT, Punjabi NM, Quan SF, Redline S, Resnick HE, Tong EK, Diener-West M, Shahar E. Prospective study of obstructive sleep apnea and incident coronary heart disease and heart failure: the sleep heart health study. Circulation. 2010 Jul 27;122(4):352-60. doi: 10.1161/CIRCULATIONAHA.109.901801. Epub 2010 Jul 12.

  • Luyster FS, Kip KE, Aiyer AN, Reis SE, Strollo PJ Jr. Relation of obstructive sleep apnea to coronary artery calcium in non-obese versus obese men and women aged 45-75 years. Am J Cardiol. 2014 Dec 1;114(11):1690-4. doi: 10.1016/j.amjcard.2014.08.040. Epub 2014 Sep 16.

  • Hla KM, Young T, Hagen EW, Stein JH, Finn LA, Nieto FJ, Peppard PE. Coronary heart disease incidence in sleep disordered breathing: the Wisconsin Sleep Cohort Study. Sleep. 2015 May 1;38(5):677-84. doi: 10.5665/sleep.4654.

  • Defaye P, de la Cruz I, Marti-Almor J, Villuendas R, Bru P, Senechal J, Tamisier R, Pepin JL. A pacemaker transthoracic impedance sensor with an advanced algorithm to identify severe sleep apnea: the DREAM European study. Heart Rhythm. 2014 May;11(5):842-8. doi: 10.1016/j.hrthm.2014.02.011. Epub 2014 Feb 19.

  • Marti-Almor J, Marques P, Jesel L, Garcia R, Di Girolamo E, Locati F, Defaye P, Venables P, Dompnier A, Barcelo A, Nagele H, Burri H. Incidence of sleep apnea and association with atrial fibrillation in an unselected pacemaker population: Results of the observational RESPIRE study. Heart Rhythm. 2020 Feb;17(2):195-202. doi: 10.1016/j.hrthm.2019.09.001. Epub 2019 Sep 4.

  • Moubarak G, Bouzeman A, de Geyer d'Orth T, Bouleti C, Beuzelin C, Cazeau S. Variability in obstructive sleep apnea: Analysis of pacemaker-detected respiratory disturbances. Heart Rhythm. 2017 Mar;14(3):359-364. doi: 10.1016/j.hrthm.2016.11.033. Epub 2016 Nov 23.

  • Mazza A, Bendini MG, Leggio M, De Cristofaro R, Valsecchi S, Boriani G. Continuous monitoring of sleep-disordered breathing with pacemakers: Indexes for risk stratification of atrial fibrillation and risk of stroke. Clin Cardiol. 2020 Dec;43(12):1609-1615. doi: 10.1002/clc.23489. Epub 2020 Nov 12.

  • Linz D, Brooks AG, Elliott AD, Nalliah CJ, Hendriks JML, Middeldorp ME, Gallagher C, Mahajan R, Kalman JM, McEvoy RD, Lau DH, Sanders P. Variability of Sleep Apnea Severity and Risk of Atrial Fibrillation: The VARIOSA-AF Study. JACC Clin Electrophysiol. 2019 Jun;5(6):692-701. doi: 10.1016/j.jacep.2019.03.005. Epub 2019 May 1.

  • Mazza A, Bendini MG, De Cristofaro R, Lovecchio M, Valsecchi S, Boriani G. Pacemaker-detected severe sleep apnea predicts new-onset atrial fibrillation. Europace. 2017 Dec 1;19(12):1937-1943. doi: 10.1093/europace/euw371.

MeSH Terms

Conditions

Bradycardia

Condition Hierarchy (Ancestors)

Arrhythmias, CardiacHeart DiseasesCardiovascular DiseasesPathologic ProcessesPathological Conditions, Signs and Symptoms

Study Design

Study Type
observational
Observational Model
COHORT
Time Perspective
PROSPECTIVE
Target Duration
20 Years
Sponsor Type
OTHER
Responsible Party
SPONSOR

Study Record Dates

First Submitted

October 27, 2021

First Posted

November 19, 2021

Study Start

November 30, 2021

Primary Completion (Estimated)

December 31, 2041

Study Completion (Estimated)

December 31, 2041

Last Updated

February 24, 2026

Record last verified: 2025-09

Locations