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Use of Diffuse Optical Spectroscopy for Evaluation of the Trauma/Critically Care Patients

This study has been completed.
Beckman Laser Institute University of California Irvine
Information provided by (Responsible Party):
Beckman Laser Institute and Medical Center, University of California, Irvine Identifier:
First received: December 19, 2007
Last updated: February 8, 2017
Last verified: February 2017

Trauma remains the leading cause of death and disability for Americans age 1-44. Trauma can cause internal bleeding, and this bleeding is often hard to detect without sophisticate tests that take time to complete and analyze.

In addition, internal bleeding, including bleeding into the lung and chest cavity, as well as other blood loss, happens in many critically ill patients. For example, for hemorrhage, it is very difficult to detect active hemorrhage and to determine optimal rates of fluid and blood resuscitation.

Diffuse optical spectroscopy has the potential to accurately assess adequacy of tissue perfusion, oxygenation, tissue oxygen extraction, and cytochrome oxidation states that may be critical to optimal treatment, end- organ preservation, and survival.

Condition Intervention
Device: Diffuse optical spectroscopy

Study Type: Observational
Study Design: Observational Model: Case-Only
Time Perspective: Prospective
Official Title: Use of Diffuse Optical Spectroscopy for Evaluation of the Trauma/Critically Care Patients

Resource links provided by NLM:

Further study details as provided by University of California, Irvine:

Primary Outcome Measures:
  • The ability to noninvasively diagnose conditions in the intensive care unit, or in battlefield conditions. [ Time Frame: 5 to 60 seconds ]

Enrollment: 93
Study Start Date: March 2007
Study Completion Date: April 2011
Primary Completion Date: April 2011 (Final data collection date for primary outcome measure)
Groups/Cohorts Assigned Interventions
Diffuse optical spectroscopy measurment
Device: Diffuse optical spectroscopy
Diffuse optical spectroscopy measurment

Detailed Description:

The research' want to monitor tissue perfusion and indicators of tissue damage and viability in critically ill patients by using DOS.

Non-invasive Optical Techniques DOS,near-infrared diffuse optical spectroscopy (NIR-DOS.

NIR-DOS provides functional physiologic tissue/organ information without ionizing radiation and without withdrawing any blood, in a cost-effective and rapid manner. The application of frequency-domain photon migration analysis (FDPM) to NIRS allows independent measurements of tissue absorption and scattering properties at depths of 1 cm or more below the skin surface.

Such capabilities will improve early diagnosis, detection, optimization of therapy, assessment of adequacy of resuscitation, and alteration in management plans for all of these critical conditions.


Ages Eligible for Study:   18 Years and older   (Adult, Senior)
Sexes Eligible for Study:   All
Accepts Healthy Volunteers:   No
Sampling Method:   Non-Probability Sample
Study Population
Trauma/Critically Care Patients

Inclusion Criteria:

  • Adult age 18 years or older, male or female
  • Trauma/Critical Care patient

Exclusion Criteria:

  • Subject is not Trauma/Critical Care patient
  Contacts and Locations
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Please refer to this study by its identifier: NCT00581295

United States, California
Beckman Laser Institute,University of California, Irvine
Irvine, California, United States, 92612
Trauma/Critical Care Units, UCI Medical Center
Orange, California, United States, 92686
Sponsors and Collaborators
University of California, Irvine
Beckman Laser Institute University of California Irvine
Principal Investigator: Michael E Lekawa, M.D Beckman Laser Institute
  More Information

Responsible Party: Beckman Laser Institute and Medical Center, Michael E. Lekawa, MD Chief, Division of Trauma/Critical Care Surgery, University of California, Irvine Identifier: NCT00581295     History of Changes
Other Study ID Numbers: NIH-LAMMP-2013-9435
Study First Received: December 19, 2007
Last Updated: February 8, 2017

Keywords provided by University of California, Irvine:
internal bleeding
changes in tissue perfusion

Additional relevant MeSH terms:
Wounds and Injuries processed this record on May 25, 2017