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Stroke Volume Analysis During Aortic Valve Replacement Trial (standart)

7. august 2014 opdateret af: Michael Sander, Charite University, Berlin, Germany
Compromised peripheral tissue oxygenation during surgery may lead to worse patient outcome, mainly due to post-operative infections or heart failure. Insufficient stroke volume and/or cardiac output due to hypovolemia or cardiac defects play a central role in causing poor peripheral tissue oxygenation. In order to assess stroke volume, there are numerous invasive and non-invasive methods available. Up to the present date it is unknown, if these methods may by used interchangeably in patients with severe cardiac defects like aortic stenosis.

Studieoversigt

Status

Ukendt

Betingelser

Undersøgelsestype

Observationel

Tilmelding (Forventet)

68

Kontakter og lokationer

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

Studiesteder

  • Tyskland
      • Berlin, Tyskland, 10117
        • Rekruttering
        • Charité Universitätsmedizin Berin
        • Underforsker:
          • Felix Balzer, MD
        • Kontakt:
        • Underforsker:
          • Sascha Treskatsch, MD
        • Underforsker:
          • Marit Habicher, MD
        • Underforsker:
          • Viktor Mezger, MD

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

Cardiac surgery at a university hospital

Beskrivelse

Inclusion Criteria:

  • scheduled transcatheter aortic valve implantation
  • signed patient consent form
  • aged 18 or older by time of surgery
  • no participation in other clinical trials

Exclusion Criteria:

  • pregnant or breast-feeding women
  • emergency surgery

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
Hemodynamic optimisation
No hemodynamic optimisation

Hvad måler undersøgelsen?

Primære resultatmål

Resultatmål
Tidsramme
Measurement of stroke volume (ml) before TAVI (transcatheter aortic valve implantation) by means of (1) FloTrac, (2) transesophageal doppler echocardiography, (3) pulmonary thermodilution via pulmonary artery catheter
Tidsramme: Before Surgery; participants will be followed for the duration of hospital stay, an expected average of 2 weeks
Before Surgery; participants will be followed for the duration of hospital stay, an expected average of 2 weeks
Measurement of cardiac output (l/min) before TAVI (transcatheter aortic valve implantation) by means of (1) FloTrac, (2) transesophageal doppler echocardiography, (3) pulmonary thermodilution via pulmonary artery catheter
Tidsramme: Before Surgery; participants will be followed for the duration of hospital stay, an expected average of 2 weeks
Before Surgery; participants will be followed for the duration of hospital stay, an expected average of 2 weeks

Sekundære resultatmål

Resultatmål
Tidsramme
Measurement of stroke volume (ml) after TAVI (transcatheter aortic valve implantation) by means of (1) FloTrac, (2) transesophageal doppler echocardiography and (3) pulmonary thermodilution via pulmonary artery catheter
Tidsramme: After surgery; participants will be followed for the duration of hospital stay, an expected average of 2 weeks
After surgery; participants will be followed for the duration of hospital stay, an expected average of 2 weeks
Accordance of stroke volume and cardiac output measurements assessed by (1) FloTrac, (2) transesophageal doppler echocardiography and (3) pulmonary thermodilution via pulmonary artery catheter AFTER ADMINISTRATION OF FLUID BOLUS
Tidsramme: Before and after surgery; participants will be followed for the duration of hospital stay, an expected average of 2 weeks
Before and after surgery; participants will be followed for the duration of hospital stay, an expected average of 2 weeks
Accordance of stroke volume and cardiac output measurements assessed by two of the mentioned methods [i.e. (1) FloTrac, (2) transesophageal doppler echocardiography and (3) pulmonary thermodilution via pulmonary artery catheter]
Tidsramme: Before and after Surgery; participants will be followed for the duration of hospital stay, an expected average of 2 weeks
Before and after Surgery; participants will be followed for the duration of hospital stay, an expected average of 2 weeks
Measurement of cardiac output (l/min) after TAVI (transcatheter aortic valve implantation) by means of (1) FloTrac, (2) transesophageal doppler echocardiography and (3) pulmonary thermodilution via pulmonary artery catheter
Tidsramme: After Surgery; participants will be followed for the duration of hospital stay, an expected average of 2 weeks
After Surgery; participants will be followed for the duration of hospital stay, an expected average of 2 weeks

Andre resultatmål

Resultatmål
Tidsramme
oxygen delivery (ml)
Tidsramme: Before and after surgery; participants will be followed for the duration of hospital stay, an expected average of 2 weeks
Before and after surgery; participants will be followed for the duration of hospital stay, an expected average of 2 weeks
image quality of echocardiography
Tidsramme: Before and after surgery; participants will be followed for the duration of hospital stay, an expected average of 2 weeks
Before and after surgery; participants will be followed for the duration of hospital stay, an expected average of 2 weeks
Length of stay on ICU
Tidsramme: participants will be followed for the duration of hospital stay, an expected average of 2 weeks
participants will be followed for the duration of hospital stay, an expected average of 2 weeks
Cumulative rate of infections
Tidsramme: after surgery; participants will be followed for the duration of hospital stay, an expected average of 2 weeks
after surgery; participants will be followed for the duration of hospital stay, an expected average of 2 weeks
incidence of delirium after surgery
Tidsramme: after surgery; participants will be followed for the duration of hospital stay, an expected average of 2 weeks
after surgery; participants will be followed for the duration of hospital stay, an expected average of 2 weeks
dosage of inotropic medication (mg/d)
Tidsramme: after surgery; participants will be followed for the duration of hospital stay, an expected average of 2 weeks
after surgery; participants will be followed for the duration of hospital stay, an expected average of 2 weeks
length of hospital stay
Tidsramme: after surgery; participants will be followed for the duration of hospital stay, an expected average of 2 weeks
after surgery; participants will be followed for the duration of hospital stay, an expected average of 2 weeks
incidence of stroke
Tidsramme: after surgery; participants will be followed for the duration of hospital stay, an expected average of 2 weeks
after surgery; participants will be followed for the duration of hospital stay, an expected average of 2 weeks

Samarbejdspartnere og efterforskere

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

Sponsor

Charite University, Berlin, Germany

Efterforskere

  • Ledende efterforsker: Michael Sander, MD, Charite University, Berlin, Germany

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. maj 2014

Primær færdiggørelse (Forventet)

1. maj 2015

Datoer for studieregistrering

Først indsendt

20. maj 2014

Først indsendt, der opfyldte QC-kriterier

2. juni 2014

Først opslået (Skøn)

5. juni 2014

Opdateringer af undersøgelsesjournaler

Sidste opdatering sendt (Skøn)

8. august 2014

Sidste opdatering indsendt, der opfyldte kvalitetskontrolkriterier

7. august 2014

Sidst verificeret

1. august 2014

Mere information

Begreber relateret til denne undersøgelse

Nøgleord

Andre undersøgelses-id-numre

  • EA1/060/13

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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