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Registrer for lederløs pacemaker: Resultater og opfølgning fra St. Pöltens Universitetshospital (LPR)

4. november 2026 opdateret af: Karl Landsteiner University of Health Sciences

Register for ledningsløs pacemaker

The registry for leadless pacemakers will collect and annually analyze the data of all leadless pacemaker implantations at the University Hospital St. Pölten, including demographic information, indications, procedural details, acute, medium- and long-term complications during follow-up. Due to the partially novel nature of the signals (atrial mechanical sensing markers) and the lack of long-term experience to date, data on these aspects will also be collected and analyzed.

This is a single-center, prospective and retrospective registry that includes all patients receiving a leadless pacing device, as well as all patients who received a leadless pacing device between January 2021 and the start of the registry. All patients undergoing implantation of a leadless pacemaker will be invited to participate in the registry. For patients to be included retrospectively, participation in the registry will be offered at the time of their next routine follow-up visit.

The indication for leadless pacing will be determined by the physician responsible for the patient. Enrollment in the registry will in no case alter or influence the treatment the patient receives. Data collection will take place at the time of implantation and continuously during follow-up over the entire study period. Pacemaker-related data may be obtained either in person or via remote monitoring.

Studieoversigt

Status

Rekruttering

Undersøgelsestype

Observationel

Tilmelding (Anslået)

700

Kontakter og lokationer

Dette afsnit indeholder kontaktoplysninger for dem, der udfører undersøgelsen, og oplysninger om, hvor denne undersøgelse udføres.

Studiekontakt

Undersøgelse Kontakt Backup

Studiesteder

    • Lower Austria
      • Sankt Pölten, Lower Austria, Østrig, 3100
        • Rekruttering
        • University Hospital of St. Pölten
        • Kontakt:

Deltagelseskriterier

Forskere leder efter personer, der passer til en bestemt beskrivelse, kaldet berettigelseskriterier. Nogle eksempler på disse kriterier er en persons generelle helbredstilstand eller tidligere behandlinger.

Berettigelseskriterier

Aldre berettiget til at studere

18 år og ældre (Voksen, Ældre voksen)

Tager imod sunde frivillige

Ingen

Køn, der er berettiget til at studere

Alle

Prøveudtagningsmetode

Ikke-sandsynlighedsprøve

Studiebefolkning

The study population consists of adult patients undergoing implantation of a leadless pacemaker at University Hospital St. Pölten, as well as patients who previously received a leadless pacemaker at the same institution since June 2015. Both prospective and retrospective patients are included.

Beskrivelse

Inclusion Criteria:

  • Patients undergoing implantation of a leadless pacemaker at the University Hospital of St. Pölten
  • Patients who previously received a leadless pacemaker between June 2015 and the start of the registry (retrospective inclusion).
  • Age ≥ 18 years.
  • Written informed consent provided by the patient.

Exclusion Criteria:

  • Patients who decline or are unable to provide informed consent.
  • Patients in whom a conventional transvenous pacemaker is implanted (i.e., not leadless).
  • Any condition that, in the opinion of the treating physician, precludes participation in the registry.

Studieplan

Dette afsnit indeholder detaljer om studieplanen, herunder hvordan undersøgelsen er designet, og hvad undersøgelsen måler.

Hvordan er undersøgelsen tilrettelagt?

Design detaljer

  • Observationsmodeller: COHORT
  • Tidsperspektiver: OTHER

Hvad måler undersøgelsen?

Primære resultatmål

Resultatmål
Foranstaltningsbeskrivelse
Tidsramme
Procedural success rate
Tidsramme: Periprocedural / at Day 1

Successful implantation of a leadless pacemaker with acceptable electrical parameters and no need for conversion to a transvenous system

Periprocedural / at Day 1
Incidence of acute complications
Tidsramme: Within 30 days after implantation

Rate of periprocedural complications (e.g., vascular complications, arrhythmias, pericardial effusion, device dislodgement)

Within 30 days after implantation

Sekundære resultatmål

Resultatmål
Foranstaltningsbeskrivelse
Tidsramme
Dødelighed af alle årsager
Tidsramme: Igennem hele opfølgningsperioden (op til 10 år)
Igennem hele opfølgningsperioden (op til 10 år)
Indlæggelser relateret til hjertearytmier eller hjertesvigt
Tidsramme: Igennem hele opfølgningsperioden (op til 10 år)
Igennem hele opfølgningsperioden (op til 10 år)
Device-related complication rate (medium- and long-term)
Tidsramme: Up to 10 years after implantation

Cumulative incidence of complications requiring medical or surgical intervention (e.g., device malfunction, infection, need for extraction, upgrade)

Up to 10 years after implantation
Ventricular pacing burden
Tidsramme: Day 1, 3 months post-implant (±2 weeks), 1 year after Implantation (±2 weeks), every 12th month (±2 weeks) thereafter

Percentage of ventricular pacing and triggered pacing as recorded by device interrogation

Day 1, 3 months post-implant (±2 weeks), 1 year after Implantation (±2 weeks), every 12th month (±2 weeks) thereafter
Quality of Life after Implantation
Tidsramme: 1 year after Implantation (±2 weeks), every 12th month (±2 weeks) thereafter

Change in 12-Item Short Form Health Survey (SF-12) questionnaire score / The SF-12 questionnaire is a validated health-related quality of life instrument with two subscales: Physical Component Summary (PCS) and Mental Component Summary (MCS). Each subscale ranges from 0 to 100 points, where higher scores indicate better health-related quality of life.

1 year after Implantation (±2 weeks), every 12th month (±2 weeks) thereafter
Electrical performance of the device
Tidsramme: Day 1, 3 months post-implant (±2 weeks), 1 year after Implantation (±2 weeks), every 12th month (±2 weeks) thereafter

Pacing thresholds (in Volts at 0.24 ms pulse width)

Day 1, 3 months post-implant (±2 weeks), 1 year after Implantation (±2 weeks), every 12th month (±2 weeks) thereafter
Electrical performance of the device
Tidsramme: Day 1, 3 months post-implant (±2 weeks), 1 year after Implantation (±2 weeks), every 12th month (±2 weeks) thereafter

Sensing Amplitude (R-wave, in millivolts [mV])

Day 1, 3 months post-implant (±2 weeks), 1 year after Implantation (±2 weeks), every 12th month (±2 weeks) thereafter
Electrical performance of the device
Tidsramme: Day 1, 3 months post-implant (±2 weeks), 1 year after Implantation (±2 weeks), every 12th month (±2 weeks) thereafter

Lead impedance (in Ohms [Ω])

Day 1, 3 months post-implant (±2 weeks), 1 year after Implantation (±2 weeks), every 12th month (±2 weeks) thereafter
Electrical performance of the device
Tidsramme: Day 1, 3 months post-implant (±2 weeks), 1 year after Implantation (±2 weeks), every 12th month (±2 weeks) thereafter

Estimated battery longevity (in years)

Day 1, 3 months post-implant (±2 weeks), 1 year after Implantation (±2 weeks), every 12th month (±2 weeks) thereafter
Left ventricular ejection fraction on Echocardiography
Tidsramme: 1 year after Implantation (±2 weeks), every 12th month (±2 weeks) thereafter

in %

1 year after Implantation (±2 weeks), every 12th month (±2 weeks) thereafter
Left ventricular dimensions on Echocardiography
Tidsramme: 1 year after Implantation (±2 weeks), every 12th month (±2 weeks) thereafter

end-diastolic and end-systolic diameters, in mm

1 year after Implantation (±2 weeks), every 12th month (±2 weeks) thereafter
Right ventricular function on Echocardiography
Tidsramme: 1 year after Implantation (±2 weeks), every 12th month (±2 weeks) thereafter

Tricuspid Annular Plane Systolic Excursion (TAPSE) in mm

1 year after Implantation (±2 weeks), every 12th month (±2 weeks) thereafter

Samarbejdspartnere og efterforskere

Det er her, du vil finde personer og organisationer, der er involveret i denne undersøgelse.

Samarbejdspartnere

Efterforskere

  • Ledende efterforsker: Julia Mascherbauer, MD, Professor, Department of Internal Medicine III, University Hospital of St. Pölten

Datoer for undersøgelser

Disse datoer sporer fremskridtene for indsendelser af undersøgelsesrekord og resumeresultater til ClinicalTrials.gov. Studieregistreringer og rapporterede resultater gennemgås af National Library of Medicine (NLM) for at sikre, at de opfylder specifikke kvalitetskontrolstandarder, før de offentliggøres på den offentlige hjemmeside.

Studer store datoer

Studiestart (Faktiske)

18. juni 2015

Primær færdiggørelse (Anslået)

1. januar 2035

Studieafslutning (Anslået)

1. januar 2035

Datoer for studieregistrering

Først indsendt

16. september 2025

Først indsendt, der opfyldte QC-kriterier

17. november 2025

Først opslået (Faktiske)

24. november 2025

Opdateringer af undersøgelsesjournaler

Sidste opdatering sendt (Faktiske)

5. november 2026

Sidste opdatering indsendt, der opfyldte kvalitetskontrolkriterier

4. november 2026

Sidst verificeret

1. oktober 2026

Mere information

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