Denne side blev automatisk oversat, og nøjagtigheden af ​​oversættelsen er ikke garanteret. Der henvises til engelsk version for en kildetekst.

ALDOsterone for Prediction of Post-Operative Atrial Fibrillation (ALDO-POAF)

27. juni 2016 opdateret af: University Hospital, Caen

Post-operative atrial fibrillation (POAF) is a major and frequent complication occurring after cardiac surgery, contributing to prolonged intensive care and hospital stays and is associated with several cardiovascular complications. The exact mechanisms and signaling pathways involved in the development of POAF seem to be multifactorial and remain to date incompletely understood. β-blockers and amiodarone are the first line preventive drugs but are partially effective and near 30% of POAF resist to these strategies. In this context, there is some evidence indicating that renin-angiotensin-aldosterone system and Galectin-3 (Gal-3) share signaling pathways in the development of cardiac fibrosis and therefore could be very useful predictive biomarkers of POAF and potentially interesting therapeutic target to prevent POAF occurrence.

The investigators hypothesis is that preoperative plasma aldosterone levels and galectin-3 (Gal-3) expression (in plasma, right atrial appendage or epicardial fat) could be predictive of POAF in patients undergoing elective CABG surgery with preserved LVEF.

Studieoversigt

Status

Ukendt

Betingelser

Undersøgelsestype

Observationel

Tilmelding (Forventet)

500

Kontakter og lokationer

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

Studiesteder

  • Frankrig
    • Basse Normandie
      • Caen, Basse Normandie, Frankrig, 14000

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

Sandsynlighedsprøve

Studiebefolkning

The ALDO-POAF study is an observational, 1-center and prospective pilot study that will enroll patients undergoing CABG ± aortic valve replacement. Patients who had emergency CABG, need for concomitant mitral surgery, left ventricular ejection fraction (LVEF) < 50%, a history of AF or other atrial arrhythmia, unstable angina or heart failure, cardiogenic shock, atrioventricular block, hypothyroidism/hyperthyroidism, previous heart surgery, and off-pump or on-pump beating CABG will be excluded. Approval for this study, including collection of human tissues (right atrial appendage, subcutaneous and epicardial fat) and blood collection, was obtained from the Ethics Committee of Caen University Hospital (Comité de Protection des Personnes Nord-Ouest III, Caen, France) and will be in accordance to the declaration of Helsinki; the details of the study will be explained to the subjects, and written informed consent will be obtained from each patient.

Beskrivelse

Inclusion Criteria:

  • Patients hospitalized for planned surgical coronary revascularization +/- aortic replacement valve
  • Aged 18 years at least
  • Clinically Stable (see criteria for non-inclusion)
  • With left ventricular ejection fraction preserved (>50%)

Exclusion Criteria:

  • Patient having already AF history
  • Patient with primary hyperaldosteronism
  • Unstable Patient defined as any cardiovascular event occurred in the previous 30 days

These events are:

  • hospitalisation for cardiovascular causes
  • appearance or worsening of symptoms consistent with cardiac failure
  • appearance or worsening symptoms of coronary
  • Patient refusing participation in the study
  • Patient unable to provide follow-up visits
  • need for concomitant mitral surgery
  • Emergency CABG
  • Left ventricular ejection fraction (LVEF) < 50%
  • Previous heart surgery
  • Off pump CABG.

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
Planned cardiac surgery. POAF occurence or not
The ALDO-POAF study is an observational, 1-center and prospective pilot study that will enroll patients undergoing CABG ± aortic valve replacement. Patients who had emergency CABG, need for concomitant mitral surgery, left ventricular ejection fraction (LVEF) < 50%, a history of AF or other atrial arrhythmia, unstable angina or heart failure, cardiogenic shock, atrioventricular block, hypothyroidism/hyperthyroidism, previous heart surgery, and off-pump or on-pump beating CABG will be excluded.

Hvad måler undersøgelsen?

Primære resultatmål

Resultatmål
Tidsramme
Occurrence of atrial fibrillation in post-operative period of cardiac surgery (CABG +/- aortic valve replacement)
Tidsramme: 1 month
1 month

Sekundære resultatmål

Resultatmål
Tidsramme
Find a correlation between the local secretion of aldosterone by adipocytes epicardial and the occurrence of AF during the 6 months after surgery in patients undergoing cold bypass coronary artery.
Tidsramme: 6 months
6 months
Find a correlation between aldosterone levels secreted in epicardial adipocytes and plasma aldosterone levels.
Tidsramme: 1 month
1 month
Find a correlation between preoperative plamastic aldosterone levels and occurence of postoperative atrial fibrillation
Tidsramme: 1 month
1 month
Detect aldosterone synthase aldosterone or angiotensin II (measured by quantitative and qualitative assays Western Blot, mRNA or RT-PCR) in the epicardial fat removed during surgery in patients undergoing a CABG.
Tidsramme: 1 month
1 month
Find a correlation between preoperative plamastic galectin-3 levels and occurrence of postoperative atrial fibrillation
Tidsramme: 1 month
1 month
Find a correlation between preoperative plamastic ngal levels and occurrence of postoperative atrial fibrillation
Tidsramme: 1 month
1 month
Find a correlation between preoperative mitochondrial function and occurrence of postoperative atrial fibrillation
Tidsramme: 1 month
1 month
Find a correlation between preoperative left atrial strain and occurrence of postoperative atrial fibrillation
Tidsramme: 1 month
1 month
Find a correlation between acute renal failure and occurrence of postoperative atrial fibrillation
Tidsramme: 1 month
1 month
Find a correlation between occurrence of postoperative atrial fibrillation and all cause cardiovascular morbimortality
Tidsramme: 2 years
2 years
Find a correlation between occurrence of postoperative atrial fibrillation and length of hospitalisation
Tidsramme: 1 month
1 month

Samarbejdspartnere og efterforskere

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

Sponsor

University Hospital, Caen

Publikationer og nyttige links

Den person, der er ansvarlig for at indtaste oplysninger om undersøgelsen, leverer frivilligt disse publikationer. Disse kan handle om alt relateret til undersøgelsen.

Generelle publikationer

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. januar 2014

Primær færdiggørelse (Forventet)

1. juni 2017

Studieafslutning (Forventet)

1. august 2017

Datoer for studieregistrering

Først indsendt

14. juni 2016

Først indsendt, der opfyldte QC-kriterier

27. juni 2016

Først opslået (Skøn)

28. juni 2016

Opdateringer af undersøgelsesjournaler

Sidste opdatering sendt (Skøn)

28. juni 2016

Sidste opdatering indsendt, der opfyldte kvalitetskontrolkriterier

27. juni 2016

Sidst verificeret

1. juni 2016

Mere information

Begreber relateret til denne undersøgelse

Nøgleord

Yderligere relevante MeSH-vilkår

Andre undersøgelses-id-numre

  • A14-D05-VOL.20

Plan for individuelle deltagerdata (IPD)

Planlægger du at dele individuelle deltagerdata (IPD)?

JA

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 .

Kliniske forsøg med Atrieflimren

Søg i lignende forsøg

Sponsorer og samarbejdspartnere

Medicinske tilstande

Narkotikainterventioner

CROs by country

CROs in Luxembourg

Betingelser

Sjældne sygdomme

Narkotikainterventioner

Kosttilskud

Sponsor / samarbejdspartnere

Placeringer

3
Abonner