Monitoring the Effect of Red Blood Cell Transfusion on Cerebral Oxygen Saturation With Near Infrared Spectroscopy (NIRS) in Critically Ill Patients

NCT ID: NCT02232412

Last Updated: 2015-03-31

Study Results

Results pending

The study team has not published outcome measurements, participant flow, or safety data for this trial yet. Check back later for updates.

Basic Information

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Recruitment Status

COMPLETED

Total Enrollment

25 participants

Study Classification

OBSERVATIONAL

Study Start Date

2014-09-30

Study Completion Date

2015-03-31

Brief Summary

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Critically ill patients are frequently transfused with red blood cell (RBC) units with the predominant intention to increase arterial oxygen content and thus oxygen delivery to the tissues.

To date, RBC transfusions have been proven effective in patients with profound anaemia or circulatory shock. However, the impact of the storage process and the so-called storage lesion on oxygen-carrying properties and, hence, the efficacy of RBC transfusion regarding tissue oxygenation are much debated at present. Alterations of RBC physiology have been comprehensively described ex vivo. Reduced deformability, increased adhesiveness and aggregability of stored RBC impair their rheological properties; anaerobic cellular metabolism with reduced contents of 2,3 bisphosphoglycerate and adenosine triphosphate (ATP) increases oxygen affinity and impairs oxygen release to the tissues.

This study aims to monitor the effect RBC transfusion has on the regional cerebral oxygen saturation (rSO2) of critically ill patients. rSO2 will be measured indirectly, using near infrared spectroscopy (NIRS) . Patients will be monitored once it looms that they might require RBC transfusion. The monitoring is continued for the time of transfusion and the hours afterwards.

Detailed Description

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Conditions

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Effect of RBC Transfusions on Cerebral Oxygen Saturation

Keywords

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Anemia NIRS Near Infrared Spectroscopy RBC transfusion critical ill regional cerebral oxygen saturation tissue oxygenation

Study Design

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Observational Model Type

CASE_ONLY

Study Time Perspective

PROSPECTIVE

Eligibility Criteria

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Inclusion Criteria

* expected requirement of RBC transfusion
* 18 yrs and older

Exclusion Criteria

* severe traumatic brain injury (Glasgow coma scale \< 9), subarachnoid hemorrhage (Hunt and Hess scale ≥ 3) or intracranial hemorrhage
* cerebral ischaemia
* active bleeding
* patients necessitating ongoing resuscitation
* deficient signal of rSO2 impeding its proper valuation
Minimum Eligible Age

18 Years

Eligible Sex

ALL

Accepts Healthy Volunteers

No

Sponsors

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Johann Wolfgang Goethe University Hospital

OTHER

Sponsor Role lead

Responsible Party

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Dr Dania Fischer

Dr. Dania Fischer

Responsibility Role PRINCIPAL_INVESTIGATOR

Principal Investigators

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Kai D Zacharowski, MD, PhD, FRCA

Role: STUDY_DIRECTOR

University Hospital Frankfurt, Department of Anaesthesiology, Intensive Care Medicine and Pain Therapy

Patrick Meybohm, MD

Role: STUDY_CHAIR

University Hospital Frankfurt, Department of Anaesthesiology, Intensive Care Medicine and Pain Therapy

Dania P Fischer, MD

Role: PRINCIPAL_INVESTIGATOR

University Hospital Frankfurt, Department of Anaesthesiology, Intensive Care Medicine and Pain Therapy

Locations

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University Hospital Frankfurt

Frankfurt am Main, Hesse, Germany

Site Status

Countries

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Germany

Other Identifiers

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NIRS-2014

Identifier Type: -

Identifier Source: org_study_id