Blood Loss Measurement Using Electrical Impedance Tomography

August 8, 2022 updated by: Czech Technical University in Prague

Measurement of Blood Loss Using Electrical Impedance Tomography

The project focuses on the possibility of detecting blood loss using electrical impedance tomography. Based on previous animal experiments, it was found that the bolus of saline significantly affects the signal of chest bioimpedance. It is assumed that blood loss of a similar volume will cause a similar signal change with the opposite trend. The aim of this project is to determine whether there is a significant change in the thoracic electrical impedance tomography signal when blood loss is caused by voluntary blood donation.

Study Overview

Status

Recruiting

Conditions

Intervention / Treatment

Detailed Description

Electrical impedance tomography is a bedside method of ventilation monitoring. The bioimpedance of the tissue depends, among other things, on its blood content. The area of the chest and especially the lungs is a heavily perfused tissue, which also serves as one of the reservoirs of blood in case of blood loss. It is therefore possible that blood loss will be visible on chest bioimpedance relatively soon.

The study will be performed on voluntary blood donors. Blood loss of 450 mL will be caused by the collection of donated blood. During blood collection at the transfusion department, thoracic bioimpedance will be measured using electrical impedance tomography. The resulting signal change will then be analyzed to determine the possibility of detecting and measuring blood loss using electrical impedance tomography.

Study Type

Interventional

Enrollment (Anticipated)

15

Phase

  • Not Applicable

Contacts and Locations

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

Study Contact

Study Locations

  • Czechia
      • Kladno, Czechia, 272 01
        • Recruiting
        • Czech Technical University, Faculty of Biomedical Engineering
        • Contact:
      • Kladno, Czechia, 27201
        • Recruiting
        • Czech technical university in Prague, Facutly of biomedical engineering
        • Contact:

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

Yes

Genders Eligible for Study

All

Description

Inclusion Criteria:

  • voluntary blood donation

Exclusion Criteria:

  • standard exclusion criteria for voluntary blood donation based on the transfusion station protocol
  • standard exclusion criteria for electrical impedance tomography according to the manufacturer

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

  • Primary Purpose: Supportive Care
  • Allocation: N/A
  • Interventional Model: Single Group Assignment
  • Masking: None (Open Label)

Arms and Interventions

Participant Group / Arm
Intervention / Treatment
Experimental: Voluntary blood donors
Voluntary blood donors undergoing standard blood donation while measuring electrical impedance of the chest .
Device: Electrical impedance tomography measurement
During standard blood donation, donors' chest bioimpedance will be measured using electrical impedance tomography.

What is the study measuring?

Primary Outcome Measures

Outcome Measure
Measure Description
Time Frame
Change in chest electrical impedance due to blood loss.
Time Frame: Time frame of one voluntary blood donation process (15 min)
A change in the electrical impedance of the chest of a voluntary blood donor caused by a blood donation.
Time frame of one voluntary blood donation process (15 min)

Collaborators and Investigators

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

Sponsor

Czech Technical University in Prague

Collaborators

Military University Hospital, Prague

Investigators

  • Principal Investigator: Vaclav Ort, M.Eng., Czech Technical University in Prague, Fac. of Biomedical Engineering

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)

July 1, 2022

Primary Completion (Anticipated)

October 10, 2022

Study Completion (Anticipated)

December 31, 2022

Study Registration Dates

First Submitted

March 10, 2022

First Submitted That Met QC Criteria

March 17, 2022

First Posted (Actual)

March 18, 2022

Study Record Updates

Last Update Posted (Actual)

August 9, 2022

Last Update Submitted That Met QC Criteria

August 8, 2022

Last Verified

August 1, 2022

More Information

Terms related to this study

Keywords

Additional Relevant MeSH Terms

Other Study ID Numbers

  • 12229 (Company Internal)

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.

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