Age of Blood in Brain Injury

The safety and scientific validity of this study is the responsibility of the study sponsor and investigators. Listing a study does not mean it has been evaluated by the U.S. Federal Government. Read our disclaimer for details. Identifier: NCT00141674
Recruitment Status : Completed
First Posted : September 1, 2005
Last Update Posted : September 4, 2008
Information provided by:
University of British Columbia

Brief Summary:

Donated red blood cells vary in how old they are, that is, how long they have been stored since being collected from donors. Blood that has been donated is stored for a maximum of 42 days, after this time it is expired. That means that red blood cells that are given to patients as a blood transfusion can be anywhere from a few days old to 42 days old. The average age of blood that is given as a blood transfusion in this hospital is 21 days old.

As stored blood gets older its ability to carry oxygen may be reduced. Whether or not this is important in patients with a brain injury is not currently known.

The purpose of this study is to try and determine if fresh blood (less than 5 days old) is better than old blood (greater than 20 days old) in improving the supply of oxygen in patients who have suffered an injury to their brain.

Condition or disease Intervention/treatment Phase
Traumatic Brain Injury Procedure: Blood Transfusion Not Applicable

  Show Detailed Description

Study Type : Interventional  (Clinical Trial)
Estimated Enrollment : 60 participants
Allocation: Randomized
Intervention Model: Parallel Assignment
Masking: Double (Participant, Investigator)
Primary Purpose: Treatment
Official Title: A Prospective Randomized Controlled Trial Comparing the Effects of Fresh vs. Old Blood on Cerebral Oxygen Extraction in Patients With Traumatic Brain Injuries
Study Start Date : March 2005
Actual Primary Completion Date : December 2007
Actual Study Completion Date : December 2007

Resource links provided by the National Library of Medicine

U.S. FDA Resources

Intervention Details:
    Procedure: Blood Transfusion
    This is a single centre randomized trial in severely head injured patients requiring a blood transfusion. Randomization will be by computer generated random numbers paced in sealed envelopes. Patients would be randomized to receive either blood less than 5 days old or greater than 20 days old. The decision to transfuse and all other intensive care management will be unaltered by enrolment in the study.

Primary Outcome Measures :
  1. To evaluate the effect of transfusing "fresh" (blood stored less than 5 days) versus "stored" (blood stored for greater than 20 days) packed red blood cells (pRBC) on cerebral oxygen extraction ratio for 24 hours post transfusion [ Time Frame: 20 days ]

Secondary Outcome Measures :
  1. To evaluate the effect of transfusion of pRBC on cerebral oxygen extraction in patients with traumatic brain injury for 24 hours post transfusion. [ Time Frame: 24 hours ]

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Ages Eligible for Study:   16 Years and older   (Child, Adult, Senior)
Sexes Eligible for Study:   All
Accepts Healthy Volunteers:   No

Inclusion Criteria:

  1. Patients with primary traumatic brain injury
  2. Glasgow Coma Scale < 8
  3. Invasive neurological monitoring:

    1. External Ventricular Drain
    2. Jugular bulb catheter
  4. Hemoglobin < 100 g/L and decision has been made by Attending Physician to treat with one unit pRBC

Exclusion Criteria:

  1. Age < 16
  2. Ongoing need for blood products
  3. Received Packed Red Blood Cells within preceding 24 hours
  4. Multiple trauma necessitating ongoing resuscitation
  5. Pregnant patients
  6. Chronic renal failure
  7. Severe sepsis or septic shock
  8. Adult respiratory distress syndrome or acute lung injury
  9. Presumed unstable neurological status during course of study
  10. Lack of informed consent

Information from the National Library of Medicine

To learn more about this study, you or your doctor may contact the study research staff using the contact information provided by the sponsor.

Please refer to this study by its identifier (NCT number): NCT00141674

Canada, British Columbia
Vancouver General Hospital
Vancouver, British Columbia, Canada, V5Z 1M9
Sponsors and Collaborators
University of British Columbia
Principal Investigator: Dean Chittock, MD University of British Columbia

Responsible Party: Dr. Dean Chittock, University of British Columbia Identifier: NCT00141674     History of Changes
Other Study ID Numbers: C04-0459
VCHRI #V04-0261
First Posted: September 1, 2005    Key Record Dates
Last Update Posted: September 4, 2008
Last Verified: September 2008

Keywords provided by University of British Columbia:
Blood transfusion
Age of blood
Traumatic Brain Injury
Cerebral Oxygen Extraction Ratio
Age of transfused blood in traumatic brain injury

Additional relevant MeSH terms:
Wounds and Injuries
Brain Injuries
Brain Injuries, Traumatic
Brain Diseases
Central Nervous System Diseases
Nervous System Diseases
Craniocerebral Trauma
Trauma, Nervous System