Echocardiography Predictive of the Inefficacy and/or of the Unsafeness of Recruitment Maneuvers in Patients With Acute Respiratory Distress Syndrome. (RV STAR)
30. januar 2017 opdateret af: Guillaume BESCH, Centre Hospitalier Universitaire de Besancon
Identification of Echocardiographic Criteria Predictive of the Inefficacy and/or the Unsafeness of Recruitment Maneuvers in Patients Suffering From Acute Respiratory Distress Syndrome
The purpose of the study RVSTAR is to evaluate whether echocardiographic criteria exploring the right ventricle can predict the inefficacy and/or the unsafeness of recruitment maneuvers in patients suffering from acute respiratory distress syndrome
Studieoversigt
Status
Afsluttet
Betingelser
Intervention / Behandling
Undersøgelsestype
Interventionel
Tilmelding (Faktiske)
30
Fase
- Ikke anvendelig
Kontakter og lokationer
Dette afsnit indeholder kontaktoplysninger for dem, der udfører undersøgelsen, og oplysninger om, hvor denne undersøgelse udføres.
Studiesteder
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Besançon, Frankrig, 25000
- CHU Besançon
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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
Beskrivelse
Inclusion Criteria:
- Endotracheal mechanical ventilation for acute hypoxemic respiratory failure lasting for one week or less
- A ratio of the partial pressure of arterial oxygen (PaO2 measured in millimeters of mercury) to the fraction of inspired oxygen (FiO2 which is unitless) of 300 mmHg or less and inspired fraction of oxygen FiO2 of more than 50 %
- A positive end-expiratory pressure of 5 cm of water or higher
- A tidal volume of 6 to 8 ml per kilogram of predicted body weight
- Bilateral opacities on chest radiography not fully explained by effusions, lobar/lung collapse, or nodules
- Respiratory failure not fully explained by cardiac failure or fluid overload
- Written and informed consent
- Adult patients at least 18 years of age
- Ventilatory criteria (PaO2/FiO2 of 300 mmHg or less and Positive End Expiratory Pressure of 5 cm of water or higher) and radiologic criteria (Bilateral opacities on chest radiography not fully explained by effusions, lobar/lung collapse, or nodules) lasting more than 24 hours
Exclusion Criteria:
- Endotracheal mechanical ventilation for acute hypoxemic respiratory failure lasting for more than one week
- Age younger than 18 years old
- No written and informed consent
- Known pregnancy and/or breastfeeding
- Increased intracranial pressure
- A ratio of the partial pressure of arterial oxygen (PaO2 measured in millimeters of mercury) to the fraction of inspired oxygen (FiO2 which is unitless) higher than 300 mmHg
- Positive end expiratory pressure of less than 5 mmHg
- Ventilatory criteria (PaO2/FiO2 of 300 mmHg or less and Positive End Expiratory Pressure of 5 cm of water or higher) and radiologic criteria (Bilateral opacities on chest radiography not fully explained by effusions, lobar/lung collapse, or nodules) lasting less than 24 hours
- Severe chronic respiratory disease requiring long-term oxygen therapy or mechanical ventilation at home
- Severe chronic liver disease
- Barotrauma such as pneumothorax
- Hemodynamic failure needing more than 3 milligrams per hour of noradrenalin and/or more than 2 milligrams per hour of adrenalin and or rising doses of vasopressors and/or vascular filling exceeding 500 milliliters in the preceding hour
- Arrhythmias such as : ventricular tachycardia, ventricular fibrillation, third degree atrioventricular block
- Atrial fibrillation
Studieplan
Dette afsnit indeholder detaljer om studieplanen, herunder hvordan undersøgelsen er designet, og hvad undersøgelsen måler.
Hvordan er undersøgelsen tilrettelagt?
Design detaljer
- Primært formål: Screening
- Tildeling: N/A
- Interventionel model: Enkelt gruppeopgave
- Maskning: Ingen (Åben etiket)
Våben og indgreb
Deltagergruppe / Arm |
Intervention / Behandling |
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Andet: Echocardiography
An echocardiography will be systematically realised in all the patients included in the study in order to evaluate whether any echocardiographic criterion exploring the right ventricle can predict the efficacy and/or safeness of recruitment maneuvers in patients suffering from acute respiratory distress syndrome.
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In the study RVSTAR, all the patients included will undergo an echocardiography in order to find an echocardiographic criterion predictive of the inefficacy and/or unsafeness of recruitment maneuver.
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Hvad måler undersøgelsen?
Primære resultatmål
Resultatmål |
Foranstaltningsbeskrivelse |
Tidsramme |
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Efficacy and safety of recruitment maneuvers in patients with Acute Respiratory Distress Syndrome.
Tidsramme: Up to 2 years
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A recruitment maneuver is considered effective if the partial pressure of oxygen in arterial blood PaO2 measured one hour after the completion of recruitment maneuver is 20 % higher than PaO2 before recruitment maneuver. A recruitment maneuver is considered unsafe if systolic arterial pressure decreases 40 % under its value before recruitment maneuver and/or if systolic arterial pressure decreases under 70 mmHg and/or if arrhythmias (third degree atrio-ventricular block, ventricular tachycardia, ventricular fibrillation, atrial fibrillation)occur during the achievement of recruitment maneuver in patients suffering from Acute Respiratory Distress Syndrome. Can echocardiography predict the inefficacy and/or unsafeness of recruitment maneuvers in patients suffering from Acute Respiratory Distress Syndrom ? |
Up to 2 years
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Sekundære resultatmål
Resultatmål |
Foranstaltningsbeskrivelse |
Tidsramme |
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Feasibility of the measurement of Longitudinal Strain and Strain Rate of the right ventricle in patients suffering from Acute Respiratory Distress Syndrome.
Tidsramme: Up to 2 years
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Collecting echocardiographic criteria exploring the right ventricle is particularly difficult, especially in patients suffering from Acute Respiratory Distress Syndrome. One of the aims of the study RVSTAR is to evaluate if the measurement of Longitudinal Strain and Strain Rate of the right ventricle is feasible. At the end of the study, the feasibility of the measurement of Longitudinal Strain and Strain Rate of the right ventricle will be determined by the proportion of patients (among all the patients included) in whom these echocardiographic criteria (Longitudinal Strain and Strain Rate of the right ventricle) have been realised successfully. |
Up to 2 years
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Comparison of the results of echocardiographic measurements between the group CONTROL and the group FAILURE.
Tidsramme: Up to 2 years
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Is there any statistical difference in the echocardiographic measurements exploring the right ventricle in the group CONTROL (the recruitment maneuver has been safe and effective) and the group FAILURE (the recruitment maneuver has not been safe and /or has not been effective)?
The echocardiographic measurements assessed (and compared between the 2 groups) will be the following ones : right heart dimensions (diameter at the base and at the mid-level of the right ventricle, longitudinal dimension of the right ventricle), right ventricle wall thickness, tricuspid annular plane systolic excursion, two-dimensional fractional area change, two-dimensional right ventricle ejection fraction,tissue Doppler-derived tricuspid lateral annular systolic velocity, longitudinal strain and strain rate, pulsed Doppler of the tricuspid inflow, tissue Doppler of the lateral tricuspid annulus, pulsed Doppler of the hepatic vein, measurements of inferior vena cava, tricuspid regurgitation velocity
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Up to 2 years
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Evaluate the effect of the inefficacy and/or of the unsafeness of the recruitment maneuver on the future of the patient suffering from Acute Respiratory Distress Syndrome.
Tidsramme: Up to 2 years
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One of the aims of the study RVSTAR is to evaluate if there is an effect of the inefficacy and/or the unsafeness of the recruitment maneuver on mortality (proportion of patients who died within 30 days after study enrollment), on the duration of invasive mechanical ventilation (number of days under mechanical ventilation from the study enrollment until discharge from the intensive care unit), on the length of stay in the intensive care unit (number of days spent in the intensive care unit) and on organ failure (renal failure defined by the need for renal replacement therapy, hemodynamic failure defined by the need for vascular filling exceeding 50 ml per kilogram of body weight and/or the need for vasopressors and/or for the need for rising doses of vasopressors) in patients suffering from Acute Respiratory Distress Syndrome.
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Up to 2 years
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Samarbejdspartnere og efterforskere
Det er her, du vil finde personer og organisationer, der er involveret i denne undersøgelse.
Efterforskere
- Studieleder: Guillaume Besch, Centre Hospitalier Universitaire Besançon
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
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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. februar 2013
Primær færdiggørelse (Faktiske)
1. januar 2017
Studieafslutning (Faktiske)
1. januar 2017
Datoer for studieregistrering
Først indsendt
13. januar 2013
Først indsendt, der opfyldte QC-kriterier
14. januar 2013
Først opslået (Skøn)
16. januar 2013
Opdateringer af undersøgelsesjournaler
Sidste opdatering sendt (Skøn)
31. januar 2017
Sidste opdatering indsendt, der opfyldte kvalitetskontrolkriterier
30. januar 2017
Sidst verificeret
1. januar 2017
Mere information
Begreber relateret til denne undersøgelse
Yderligere relevante MeSH-vilkår
Andre undersøgelses-id-numre
- P/2012/131
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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