Gut Microbiome and ICU Delirium Post Cardiac Surgeries

January 26, 2021 updated by: Second Affiliated Hospital, School of Medicine, Zhejiang University

Gut Microbiome and Gut Barrier Function in ICU Delirium Post Cardiac Surgery

ICU delirium are assessed by clinical nurses twice every day. Delirious patients are matched with patients according to their disease, gender and age range(±3 years). Stool samples for gene sequencing are collected. Gut barrier function are studied with several serum biomarkers (endotoxin, etc.). Ecological analyses, regression models and mediation equation will be performed.

Study Overview

Status

Completed

Conditions

Intervention / Treatment

Detailed Description

ICU delirium are assessed by clinical nurses twice every day using Confusion Assessment Method for the ICU (CAM-ICU). Delirious patients are matched with patients according to their disease, gender and age range(±3 years). Stool samples for gene sequencing are collected within 24 hours after surgeries. Gut barrier function are studied with several serum biomarkers (endotoxin, etc.). Ecological analyses, regression models and mediation equation will be performed.

Study Type

Observational

Enrollment (Actual)

60

Contacts and Locations

This section provides the contact details for those conducting the study, and information on where this study is being conducted.

Study Locations

  • China
    • Zhejiang
      • Hangzhou, Zhejiang, China, 310009
        • Second Affiliated Hospital, School of Medicine, Zhejiang University

Participation Criteria

Researchers look for people who fit a certain description, called eligibility criteria. Some examples of these criteria are a person's general health condition or prior treatments.

Eligibility Criteria

Ages Eligible for Study

18 years to 90 years (Adult, Older Adult)

Accepts Healthy Volunteers

No

Genders Eligible for Study

All

Sampling Method

Non-Probability Sample

Study Population

Patients after cardiac surgery and admitted to CSICU are recruited.

Description

Inclusion Criteria:

  • to have had heart valve surgery or coronary artery bypass grafting (CABG)
  • to have no planned transfer to another ward or hospital within 24 hours after surgery
  • to have no preoperative cognitive impairment and can speak and read Chinese
  • more than 18 years old

Exclusion Criteria:

  • to have a hearing or visual impairment that could impact delirium assessment
  • to have a history of alcohol or drug abuse
  • to have a preoperative intestinal irritation syndrome or history of gastrointestinal disease
  • to have received antibiotics or probiotics within 28 days before admission
  • to have a life expectancy less than 24 hours
  • to have an experience of ICU hospitalization, mechanical ventilation in the past 30 days
  • to have a cardiac surgery or hypoxic brain injury in the past 3 months.

Study Plan

This section provides details of the study plan, including how the study is designed and what the study is measuring.

How is the study designed?

Design Details

Cohorts and Interventions

Group / Cohort
Intervention / Treatment
Delirium
Patients with delirium as assessed by the bedside nurse using Confusion Assessment Method for the ICU.
Non-delirium
Patients without delirium.
Other: No intervention
No intervention.

What is the study measuring?

Primary Outcome Measures

Outcome Measure
Measure Description
Time Frame
Gut microbiome
Time Frame: within 24 hours of delirium
Rectal swabs or stool samples for bacterical DNA extraction and 16S rRNA gene sequencing will be collected. Diversity and composition of gut microbiome will be compared between delirious and non-delirious patients.
within 24 hours of delirium

Secondary Outcome Measures

Outcome Measure
Measure Description
Time Frame
Gut barrier biomarkers
Time Frame: within 24 hours of matched samples
Blood sample will be collected to analyze the level of three gut barrier biomarkers (endotoxin, D-lactate and diamine oxidase).
within 24 hours of matched samples

Collaborators and Investigators

This is where you will find people and organizations involved with this study.

Sponsor

Second Affiliated Hospital, School of Medicine, Zhejiang University

Investigators

  • Study Director: Jingfen Jin, SAHZU

Study record dates

These dates track the progress of study record and summary results submissions to ClinicalTrials.gov. Study records and reported results are reviewed by the National Library of Medicine (NLM) to make sure they meet specific quality control standards before being posted on the public website.

Study Major Dates

Study Start (Actual)

January 1, 2019

Primary Completion (Actual)

December 30, 2019

Study Completion (Actual)

December 30, 2019

Study Registration Dates

First Submitted

July 31, 2019

First Submitted That Met QC Criteria

August 13, 2019

First Posted (Actual)

August 14, 2019

Study Record Updates

Last Update Posted (Actual)

January 29, 2021

Last Update Submitted That Met QC Criteria

January 26, 2021

Last Verified

January 1, 2021

More Information

Terms related to this study

Keywords

Additional Relevant MeSH Terms

Other Study ID Numbers

  • 2018001113

Plan for Individual participant data (IPD)

Plan to Share Individual Participant Data (IPD)?

NO

Drug and device information, study documents

Studies a U.S. FDA-regulated drug product

No

Studies a U.S. FDA-regulated device product

No

This information was retrieved directly from the website clinicaltrials.gov without any changes. If you have any requests to change, remove or update your study details, please contact register@clinicaltrials.gov. As soon as a change is implemented on clinicaltrials.gov, this will be updated automatically on our website as well.

Clinical Trials on Intensive Care Unit Delirium

Clinical Trials on No intervention

Search Similar Trials

Sponsors and Collaborators

Medical Conditions

Drug Interventions

CROs by country

CROs in Gabon

Conditions

Rare Diseases

Drug Interventions

Dietary Supplements

Sponsor/Collaborators

Locations

Subscribe