The Use of Tissue Oxygen Monitoring in Critically Injured Patients

September 18, 2013 updated by: University of California, San Francisco
It is anticipated that the use of tissue oxygen monitoring to measure brain tissue oxygen and deltoid muscle oxygen will provide more precise information about focal brain ischemia and systemic hypoperfusion than current techniques and measures such as blood pressure, heart rate and intracranial pressure. Understanding the relationship between tissue oxygen tension collected from the brain and deltoid muscle in critically injured patients could lead to a broader understanding of the important metabolic and cellular events that occur following severe injury and the changes induced by therapeutic interventions. Furthermore, the use of interventions designed to improve tissue hypoxia, as measured by low brain or muscle tissue oxygen, may improve mortality or neurological recovery after systemic trauma or head trauma compared to current approaches that do not involve tissue metabolic monitoring.

Study Overview

Status

Terminated

Detailed Description

This is a prospective, observational, cohort study designed to investigate metabolic changes in the brain and deltoid muscle of injured patients. Study objectives are as follows:

  • To establish critical, abnormal levels of tissue oxygen in the brain (PbrO2) and muscle (PmO2) of injured patients.
  • To correlate PbrO2 with other currently available diagnostic measures used in head-injured patients, including ICP, mean arterial blood pressure (MAP), CPP, SjO2, CT findings, neurological examinations, and clinical outcomes from traumatic brain injury.
  • To correlate PmO2 with base deficit measurements, standard physiologic variables, near infra-red oxygen levels, infectious complications, and outcomes in critically injured patients.

Investigators will enroll patients with multisystem trauma including brain injury. In addition to the results obtained from oxygen monitoring, other data collected prospectively will include:

  1. Baseline Characteristics- mechanism of injury, arrival blood pressure and GCS, results of imaging procedures, age, gender, blood gas analysis, injuries and injury severity, and all operative procedures,
  2. ICU Care - MAP, ICP, CPP, base deficit, oxygen saturation, CVP, cardiac output, GCS scores, short-term outcome data, infectious complications and organ dysfunction.

All physiological data will be downloaded automatically and continuously from the bedside monitor, ventilator, and oxygen monitors via a study-dedicated computer and customized software (Aristein Bioinformatics, Palo Alto, CA).

Study Type

Observational

Enrollment (Actual)

67

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

    • California
      • San Francisco, California, United States, 94110
        • University of California San Francisco, San Francisco General Hospital

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 and older (Adult, Older Adult)

Accepts Healthy Volunteers

No

Genders Eligible for Study

All

Sampling Method

Non-Probability Sample

Study Population

Inclusion Criteria:

  • Age 18 years and older
  • Intubated and assisted mechanical ventilation
  • Traumatic brain injury requiring advanced neuromonitoring
  • Abbreviated injury scale 3 or more in torso. abdomen, or extremities

Description

Inclusion Criteria:

  • Age 18 years and older
  • Intubated and assisted mechanical ventilation
  • Traumatic brain injury requiring advanced neuromonitoring
  • Abbreviated injury scale 3 or more in torso. abdomen, or extremities

Exclusion Criteria:

  • Age less than 18 years
  • Pregnancy

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

Collaborators and Investigators

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

Investigators

  • Principal Investigator: Geoffrey T Manley, MD, PhD, University of California, San Francisco

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

April 1, 2006

Primary Completion (Actual)

April 1, 2009

Study Completion (Actual)

December 1, 2011

Study Registration Dates

First Submitted

May 17, 2006

First Submitted That Met QC Criteria

May 17, 2006

First Posted (Estimate)

May 19, 2006

Study Record Updates

Last Update Posted (Estimate)

September 19, 2013

Last Update Submitted That Met QC Criteria

September 18, 2013

Last Verified

September 1, 2013

More Information

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 Trauma

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