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Thromboembolic Complications After Pacemaker or Implantable Cardioverter-Defibrillator Procedures

4. maj 2013 opdateret af: Roberto Costa, University of Sao Paulo

Thromboembolic Complications Associated With Pacemaker or Implantable Cardioverter-Defibrillator Procedures: a Prospective Registry

This is a large prospective registry of patients submitted to cardiac electronic devices implantation designed to investigate the incidence, risk factors and prognostic of thromboembolic complications associated with transvenous lead implantation.

Studieoversigt

Detaljeret beskrivelse

More than 235.500 cardiac pacemakers and cardioverter-defibrillators are implanted in the US every year, with an estimated 25,000 new implants in Brazil. Despite its proven clinical effectiveness and efficacy for a number of clinical conditions such as arrhythmias, the number of adverse events in the post-implant period remains substantial. Among these complications, venous obstructions occurs anywhere between 14% and 64% of all patients, causing devastating consequences such as upper extremity deep venous thrombosis and pulmonary embolism, ultimately leading to either significant impairment or death. Although retrospective studies have demonstrated the high incidence of these complications, as a consequence of a paucity of reliable registries we know next to nothing regarding how these venous lesions may influence the clinical outcome and mortality of patients, whether laboratorial markers may contribute to the early diagnosis of venous thrombosis and its complications, and about properties of diagnostic imaging for the identification of thromboembolic complications after permanent transvenous leads implantation.

The objective of this study is therefore to propose a significant improvement in an existing clinical database located within the Heart Institute (INCOR) at the University of Sao Paulo to enable the provision of answers to a clinical, biomarker, and imaging-related research questions. Specifically, our aims are to:

  • Aim 1 - Registry infrastructure: In collaboration with professors from Duke University, we will create a series of improvements to the current database to enable it to serve as a platform not only for the current studies but also for future longitudinal, randomized studies. These include the standardization of variables in accordance with international guidelines, increase in patient retention and the ability to have additional data points in-between clinical appointments, improvement in the determination of cause of mortality, data quality monitoring, the creation of an item bank to measure aspects of quality of life that are specific for this population, as well as the integration of images and biomarkers to the clinical database.
  • Aim 2 - Diagnostic imaging methods: To identify the incidence of upper extremity deep venous thrombosis after cardiac devices implantations or reoperation procedures, as well, the incidence of symptomatic and asymptomatic pulmonary thromboembolism.
  • Aim 3 - Prognostic clinical factors: To study the impact of thromboembolic complications in the clinical prognostic and mortality of patients;
  • Aim 4 - Prognostic biomarkers: To determine the association between the biomarkers related with alterations in the hemostasis system and the occurrence of venous thrombosis (biomarkers: Fibrinogen, D Dimer, Antithrombin, Prothrombin fragment 1 +2, thromboxane B, Platelets, Plasminogen)

At the end of this study we will have a registry with one of the largest number of patients with this condition around the world, fully equipped for future randomized controlled trials. We will also have a much better understanding regarding clinical, imaging, and biomarkers for this condition.

Undersøgelsestype

Observationel

Tilmelding (Forventet)

1

Kontakter og lokationer

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

Studiesteder

      • São Paulo, Brasilien, 05403-900
        • Rekruttering
        • Heart Institute (InCor) do Hospital das Clínicas da Faculdade de Medicina da Universidade de São Paulo
        • Kontakt:
        • Ledende efterforsker:
          • Roberto Costa, MD PhD
        • Ledende efterforsker:
          • Katia R Silva, RN PhD
        • Underforsker:
          • Martino Martinelli Filho, MD PhD
        • Underforsker:
          • Mario Terra Filho, MD PhD
        • Underforsker:
          • Wilson Mathias Jr, MD PhD
        • Underforsker:
          • Marta F Lima, MD PhD
        • Underforsker:
          • Roberto A Rached, MD PhD
        • Underforsker:
          • Claudio L Lucarelli, MD PhD
        • Underforsker:
          • Francisco C Carnevale, MD PhD
        • Underforsker:
          • Airton M Moreira, MD PhD
        • Underforsker:
          • Wagner T Tamaki, MD PhD

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 til 90 år (Voksen, Ældre voksen)

Tager imod sunde frivillige

Ingen

Køn, der er berettiget til at studere

Alle

Prøveudtagningsmetode

Sandsynlighedsprøve

Studiebefolkning

Patients

Beskrivelse

Inclusion Criteria:

  • Older than 18 years
  • Pacemaker/ implantable-cardioverter defibrillator (ICD) / cardiac resynchronization therapy (CRT) initial implant by transvenous approach or
  • Patients submitted to reoperation procedures, as: pulse generator replacement, implant of an additional lead, lead extraction, lead repositioning;
  • Subject agreed to participate and signed the consent form

Exclusion Criteria:

  • Patients with a history of venous thromboembolism, coagulopathy or malignancy
  • Pregnancy
  • Life expectancy of less than one year
  • Contraindication to administration of iodinated contrast (creatinine > 3.0)
  • Unable to attend the follow-up appointments

Studieplan

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

Hvordan er undersøgelsen tilrettelagt?

Design detaljer

Kohorter og interventioner

Gruppe / kohorte
Implantation Procedures
Patients submitted to initial pacemaker or ICD implantation
Reoperation Procedures
Patients submitted to pacemaker or implantable cardioverter-defibrillator generator replacements, upgrade procedures and lead extraction

Hvad måler undersøgelsen?

Primære resultatmål

Resultatmål
Foranstaltningsbeskrivelse
Tidsramme
Thromboembolic complications
Tidsramme: Participants will be evaluated at 1, 6, 12 months after the surgical procedure
Upper extremity deep venous thrombosis Pulmonary embolism All cause mortality
Participants will be evaluated at 1, 6, 12 months after the surgical procedure

Sekundære resultatmål

Resultatmål
Foranstaltningsbeskrivelse
Tidsramme
Venous lesions
Tidsramme: Participants will be evaluated at 12 months after the surgical procedure
Venous stenosis (any degree) detected by subtraction venography
Participants will be evaluated at 12 months after the surgical procedure

Samarbejdspartnere og efterforskere

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

Samarbejdspartnere

Efterforskere

  • Ledende efterforsker: Katia R Silva, RN PhD, University of Sao Paulo

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

1. april 2013

Primær færdiggørelse (Forventet)

1. april 2014

Studieafslutning (Forventet)

1. april 2016

Datoer for studieregistrering

Først indsendt

30. september 2012

Først indsendt, der opfyldte QC-kriterier

25. oktober 2012

Først opslået (Skøn)

30. oktober 2012

Opdateringer af undersøgelsesjournaler

Sidste opdatering sendt (Skøn)

7. maj 2013

Sidste opdatering indsendt, der opfyldte kvalitetskontrolkriterier

4. maj 2013

Sidst verificeret

1. maj 2013

Mere information

Disse oplysninger blev hentet direkte fra webstedet clinicaltrials.gov uden ændringer. Hvis du har nogen anmodninger om at ændre, fjerne eller opdatere dine undersøgelsesoplysninger, bedes du kontakte register@clinicaltrials.gov. Så snart en ændring er implementeret på clinicaltrials.gov, vil denne også blive opdateret automatisk på vores hjemmeside .

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