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Gastrointestinal DysfunctionNCT04979494

Association Between SMA Flow and AGI in Critically Ill Patients

An observational study of Gastrointestinal Dysfunction and Critical Illness, run by Xinchen Wang at 1 site in China.

Completed

Finished. The study has ended and is not enrolling. Results may be posted on the official record.

Official record
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Trial summary

Acute gastrointestinal injury (AGI) is related to poor outcomes of critically ill patients [1] through many underlying mechanisms [2]. It is also a part of the process of multiple organ dysfunction syndrome (MODS). Read more about this study

Who is it for?
Ages 18 to 80 years
What is being tested?
ultrasound examination
How many people
69 participants
Where
1 siteChina
Study dates
1 Sep 2020to 30 Sep 2021
Phase
Observational
Are there results?
None posted in the registry

Key requirements

Who can take part, as listed by the sponsor. Only the study team can confirm whether you are eligible, so take this list to your doctor.

  • Ages 18 to 80 years
  • All sexes
  • No healthy volunteers
  • Adult, Older adult

Study population: Patients admitted into the Department of Critical Care Medicine of Peking Union Medical College Hospital, who were eligible of inclusion criteria, were included in the study.

Who may be able to join

  • 18 ~ 80 years old;
  • Under deep sedation (RASS score ≤ -3) with mechanical ventilation at the time of enrollment;
  • Acute Physiology and Chronic Health Evaluation II (APACHE-II) score ≥8.

Who cannot join

  • Pregnancy;
  • Recent gastrointestinal surgery;
  • History of acute or chronic gastrointestinal dysfunction before ICU admission;
  • Primary or secondary vascular malformation of SMA;
  • Any contraindication to the use of ultrasound evaluation (e.g., abdominal incision).

Trial locations and contacts

1 site in 1 country.

China1 site
  • Peking Union Medical College Hospital, Chinese Academy of Medical Science

    Beijing

Other trials in China

About this study

Official title: Association Between Blood Flow of Super Mesenteric Artery (SMA) and Acute Gastrointestinal Injury (AGI) Using Point-of-care Ultrasound in Critical Care Unit

Acute gastrointestinal injury (AGI) is related to poor outcomes of critically ill patients [1] through many underlying mechanisms [2]. It is also a part of the process of multiple organ dysfunction syndrome (MODS). However, the morbidity of acute gastrointestinal dysfunction in critically ill patients is highly underestimated due to the scarcity of accurate measurement and thus the causes are still unclear.

In this study, investigators are going to apply the technique of point-of-care ultrasound (POCUS) evaluation on the bowel diameters, wall thickness and movement combined with intra-abdominal pressure to determine the occurrence of AGI. The superior mesenteric artery (SMA) blood flow is also evaluated by POCUS to find out the association between SMA blood flow and AGI.

Read the detailed description
  1. Patients are recruited within 24 hours of our surgical ICU admission. The patients are mostly admitted for post-surgery monitor in case of complications due to their baseline health conditions. In some cases, patients are admitted from the emergency room because of severe sickness. Those who are with deep sedation and mechanical ventilation during the first ultrasound evaluation are eligible for the study.
  2. Written informed consent was obtained from all patients or next of kin before the recruitment.
  3. Information will be collected at enrollment, including demographic characteristics, diagnosis, and so on.
  4. There will be two phases of ultrasound evaluation. In Phase One, investigators perform ultrasound evaluation within 24 hours after ICU admission to investigate the SMA blood flow in supine position using POCUS. In Phase Two, starting after the enteral feeding has been initiated, usually within 3 days after the enrollment, ultrasound evaluation on GI function will be performed according to gastrointestinal and urinary tract sonography ultrasound (GUTS) protocol using POCUS. GUTS protocol includes the ultrasound measurement for bowel diameter, bowel wall thickness, peristalsis combined with intra-abdominal pressure(IAP) measured through ureteral catheterization. All measurements would be used to calculate GUTS score to grade the AGI [4].
Being tested
ultrasound examination
Keywords
Regional blood flow, Gastrointestinal dysfunction, Critical care
Medical subject headings
Critical Illness

What participants receive

What participants receive. In a randomised study each person is assigned to one group by chance.

  • ultrasound examinationOther

    We conduct abdominal ultrasound examinations for each patient.

What is being measured

The primary outcome is the main question the study is designed to answer.

  1. The occurence of acute gastrointestinal injury

    Gastrointestinal and urinary tract sonography ultrasound (GUTS) score will be calculate using a combination bowel diameter in centimeters, bowel wall thickness in centimeters, peristalsis (with or without) using ultrasound, and intra-abdominal pressure in millimeters of mercury measured through urethral tubes[3]. GUTS score is ranging from 0 to 4, and a higher GUTS score means worse gastrointestinal function. A GUTS score more than or equal to 2 is considered as acute gastrointestinal injury(AGI)in this study.

    Measured: Within 24 hours after the initiation of enteral feeding

Timeline

From the start of the study to its completion; the mark is today. Estimated dates are the sponsor’s plan.

  1. First posted28 Jul 2021
  2. Study start1 Sep 2020
  3. Primary completion1 Sep 2021
  4. Study completion30 Sep 2021

Resources

More details

For doctors and researchers: how the study is designed, who runs it, and its registry IDs.

Study design
Study type
Observational
Observational model
Case only
Time perspective
Prospective
Enrolment
69 participants (actual)
IDs, dates and publications
ClinicalTrials.gov ID
NCT04979494
Sponsor's protocol ID
PUMCH-JS-2687
Status last verified
Aug 2024
First submitted
4 May 2021
Last updated
4 Sep 2024
Results posted
No
Data monitoring committee
No
FDA-regulated drug
No
FDA-regulated device
No

Publications

  • Reintam Blaser A, Poeze M, Malbrain ML, Bjorck M, Oudemans-van Straaten HM, Starkopf J; Gastro-Intestinal Failure Trial Group. Gastrointestinal symptoms during the first week of intensive care are associated with poor outcome: a prospective multicentre study. Intensive Care Med. 2013 May;39(5):899-909. doi: 10.1007/s00134-013-2831-1. Epub 2013 Jan 31.

    PubMed 23370829
  • Meng M, Klingensmith NJ, Coopersmith CM. New insights into the gut as the driver of critical illness and organ failure. Curr Opin Crit Care. 2017 Apr;23(2):143-148. doi: 10.1097/MCC.0000000000000386.

    PubMed 28092310
  • Perko MJ, Madsen P, Perko G, Schroeder TV, Secher NH. Mesenteric artery response to head-up tilt-induced central hypovolaemia and hypotension. Clin Physiol. 1997 Sep;17(5):487-96. doi: 10.1046/j.1365-2281.1997.05252.x.

    PubMed 9347197
  • Gao T, Cheng MH, Xi FC, Chen Y, Cao C, Su T, Li WQ, Yu WK. Predictive value of transabdominal intestinal sonography in critically ill patients: a prospective observational study. Crit Care. 2019 Nov 27;23(1):378. doi: 10.1186/s13054-019-2645-9.

    PubMed 31775838

Questions about this trial

What is this clinical trial studying?

An observational study of Gastrointestinal Dysfunction and Critical Illness, run by Xinchen Wang at 1 site in China.

The full registered description is in the About this study section and the official record.

Who may be eligible to take part?

The sponsor lists 3 inclusion and 5 exclusion criteria. Eligibility is decided by the study team after screening, so read the full criteria and contact a listed site.

Is this clinical trial currently recruiting?

The record says: finished, as of the sponsor's last update on 4 Sep 2024. Status can change between updates, so confirm with the study contact before making plans.

Where is the study taking place?

The record lists 1 site in China. Whether a site is taking part right now should be confirmed with that site. See every site.

What are the possible benefits and risks?

They depend on the study and the treatment, and no study can promise a benefit. The study team explains the known risks during informed consent, before anyone joins; the record itself does not list them.

Are results available for this study?

The study is completed, but results are not available in the source record. That does not mean the treatment did or did not work.

How can a doctor refer a patient or contact the research team?

The record lists no contact. The official record names the sponsor, who can be asked directly. AzTrials does not enrol participants or take referrals.

What does the primary outcome measure?

The occurence of acute gastrointestinal injury (time frame: Within 24 hours after the initiation of enteral feeding). It is what the study was designed to measure, not a finding.

Where can I read the original study information?

On the ClinicalTrials.gov record for NCT04979494, which also lists 4 linked publications.

Does a listing mean the treatment is approved or proven to work?

No. A listing means the study is registered. It does not show that the treatment is safe, works, or is approved by a regulator.

How often is this information updated?

AzTrials copies changed records from ClinicalTrials.gov every night and reloads the whole registry every week. The sponsor last updated this record on 4 Sep 2024.

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