Post- End- Expiratory Pressure Affect the Alveolar Heterogeneity in Moderate and Sever ARDS Patients
17. juli 2022 opdateret af: Ling Liu, Southeast University, China
This study try to use EIT ( Electronic impedance tomography ) to evaluate the alveolar heterogeneity and use trans-pulmonary pressure and stain to evaluate the lung injury .
The study use these methods to figure out how PEEP impact the alveolar heterogeneity and VILI.
Studieoversigt
Detaljeret beskrivelse
ARDS(Acute respiratory distress syndrome )is common in patients suffering Sepsis, trauma, burning and other sever condition and characterized by diffuse alveolar damage and alveolar heterogeneity.ARDS patient need MV(mechanical ventilation )to maintain oxygenation and need unique MV tragedy to avoid VILI(Ventilator induced Lung injury ).PEEP(post-end-expiratory pressure) is crucial to maintain oxygenation and avoid VILI according to researches.
But there are also some other research different voice.
This study try to use EIT ( Electronic impedance tomography ) to evaluate the alveolar heterogeneity and use trans-pulmonary pressure and stain to evaluate the lung injury .
The study use these methods to figure out how PEEP impact the alveolar heterogeneity and VILI.
Undersøgelsestype
Observationel
Tilmelding (Forventet)
40
Kontakter og lokationer
Dette afsnit indeholder kontaktoplysninger for dem, der udfører undersøgelsen, og oplysninger om, hvor denne undersøgelse udføres.
Studiekontakt
- Navn: ling liu, PhD
- Telefonnummer: 13851435472
- E-mail: liulingdoctor@126.com
Undersøgelse Kontakt Backup
- Navn: haibo qiu, PhD
- Telefonnummer: professor 13951965301
- E-mail: haiboq@163.com
Studiesteder
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Jiangsu
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Nanjing, Jiangsu, Kina, 210009
- Rekruttering
- Nanjing Zhong-Da Hospital
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Kontakt:
- Ling Liu, MD.
- Telefonnummer: 86-25-83272201
- E-mail: liulingdoctor@126.com
-
Kontakt:
- Haibo Qiu, PhD.,MD.
- Telefonnummer: 86-25-83272200
- E-mail: haiboq2000@yahoo.com.cn
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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 til 80 år (Voksen, Ældre voksen)
Tager imod sunde frivillige
Ingen
Køn, der er berettiget til at studere
Alle
Prøveudtagningsmetode
Ikke-sandsynlighedsprøve
Studiebefolkning
Moderate or sever ARDS in 2012 <Berlin definition>;
Beskrivelse
Inclusion Criteria:
- Age≥18 or<80；
- Moderate or sever ARDS in 2012 <Berlin definition>;
- Applied mechanical ventilation;
- Consent signed.
Exclusion Criteria:
- Asthma or COPD；
- Cardiogenic edema；
- Sever neutropenia(<500/mm3)；
- Hemodynamic astatic: DOPA or Dobutamine >15 µg/kg/ min; NE > 15ug /min；
- GCS coma score ≤12；
- Thoracic injury or surgery patients contradict EIT ；
- Refuse to join in trail；
- Included in other clinical trail。
Studieplan
Dette afsnit indeholder detaljer om studieplanen, herunder hvordan undersøgelsen er designet, og hvad undersøgelsen måler.
Hvordan er undersøgelsen tilrettelagt?
Design detaljer
Hvad måler undersøgelsen?
Primære resultatmål
Resultatmål |
Foranstaltningsbeskrivelse |
Tidsramme |
|---|---|---|
|
alveolar hyper-distention; alveolar collapse；alveolar opening and closing；
Tidsramme: September,1,2018-December 30, 2020
|
The study use Pulmo Vista 500 device (Drager co.),is intended to perform thoracic bioimpedance measurements by applying the technique of electrical impedance tomography (EIT)to evaluate alveolar hyper-distention(%of the lung volume); alveolar collapse(% of the lung volume)；alveolar opening and closing(% of the lung volume).
|
September,1,2018-December 30, 2020
|
|
Trans-pulmonary pressure
Tidsramme: September,1,2018-December 30, 2020
|
The researchers place tube in the esophagus and connect it to transmitter to measure esophageal pressure (mmHg)and calculate trans-pulmonary pressure(mmHg) to evaluate stress
|
September,1,2018-December 30, 2020
|
|
EELV
Tidsramme: September,1,2018-December 30, 2020
|
The research use nitrogen wash out to measure EELV（end-expiratory lung volume, ml） to calculate dynamic strain and evaluate the strain
|
September,1,2018-December 30, 2020
|
|
peak pressure
Tidsramme: September,1,2018-December 30, 2020
|
The researchers use ventilator to measure peak pressure(cmH2O) in patients with mechanical ventilation and without spontaneous breathing..
|
September,1,2018-December 30, 2020
|
|
plateau pressure
Tidsramme: September,1,2018-December 30, 2020
|
The researchers use ventilator to do inspiration pause to measure plateau pressure(cmH2O) in patients with mechanical ventilation and without spontaneous breathing.
|
September,1,2018-December 30, 2020
|
|
tidal volume
Tidsramme: September,1,2018-December 30, 2020
|
The researchers use ventilator to measure tidal volume(ml) in patients with mechanical ventilation and without spontaneous breathing..
|
September,1,2018-December 30, 2020
|
|
respiratory rate
Tidsramme: September,1,2018-December 30, 2020
|
The researchers record the set respiratory rate(bpm) in patients with mechanical ventilation.
|
September,1,2018-December 30, 2020
|
|
flow
Tidsramme: September,1,2018-December 30, 2020
|
The researchers record the set Flow (L/min) in patients with mechanical ventilation.
|
September,1,2018-December 30, 2020
|
|
FiO2
Tidsramme: September,1,2018-December 30, 2020
|
The researchers record the set FiO2 ( fraction of inspiratory oxygen, %) in patients with mechanical ventilation.
|
September,1,2018-December 30, 2020
|
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PaO2
Tidsramme: September,1,2018-December 30, 2020
|
The researchers use blood gas analysis to measure PaO2( arterial oxygen pressure,mmHg)
|
September,1,2018-December 30, 2020
|
|
PaCO2
Tidsramme: September,1,2018-December 30, 2020
|
The researchers use blood gas analysis to measure PaCO2( arterial carbon dioxide pressure,mmHg) .
|
September,1,2018-December 30, 2020
|
Sekundære resultatmål
Resultatmål |
Foranstaltningsbeskrivelse |
Tidsramme |
|---|---|---|
|
SBP
Tidsramme: September,1,2018-December 30, 2020
|
Recording SBP(systolic pressure, mmHg),which is always continuously monitored with invasive pressure monitor.
|
September,1,2018-December 30, 2020
|
|
DBP
Tidsramme: September,1,2018-December 30, 2020
|
Recording DBP(Diastolic pressure, mmHg),which is always continuously monitored with invasive pressure monitor.
|
September,1,2018-December 30, 2020
|
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CVP
Tidsramme: September,1,2018-December 30, 2020
|
Recording CVP(central venous Pressure）,which is always discontinuously monitored with jugular pressure monitor mmHg).
|
September,1,2018-December 30, 2020
|
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vasopressor
Tidsramme: September,1,2018-December 30, 2020
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Recording clinical vasopressor usage including Norepinephrine（ μg/Kg/min;）Epinephrine（μg/Kg/min） Dobutamine （ μg/Kg/min)
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September,1,2018-December 30, 2020
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Samarbejdspartnere og efterforskere
Det er her, du vil finde personer og organisationer, der er involveret i denne undersøgelse.
Sponsor
Efterforskere
- Studieleder: haibo qiu, PhD, Nanjing Zhong-Da Hospital, Southeast University School of Medicine,China
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)
1. september 2018
Primær færdiggørelse (Forventet)
30. december 2023
Studieafslutning (Forventet)
30. december 2023
Datoer for studieregistrering
Først indsendt
29. november 2018
Først indsendt, der opfyldte QC-kriterier
3. december 2018
Først opslået (Faktiske)
4. december 2018
Opdateringer af undersøgelsesjournaler
Sidste opdatering sendt (Faktiske)
19. juli 2022
Sidste opdatering indsendt, der opfyldte kvalitetskontrolkriterier
17. juli 2022
Sidst verificeret
1. juli 2022
Mere information
Begreber relateret til denne undersøgelse
Nøgleord
Andre undersøgelses-id-numre
- 20181129PEEP
Plan for individuelle deltagerdata (IPD)
Planlægger du at dele individuelle deltagerdata (IPD)?
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