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Blood Loss Measurement Using Electrical Impedance Tomography

C

Czech Technical University in Prague

Status

Enrolling

Conditions

Blood Loss

Treatments

Device: Electrical impedance tomography measurement

Study type

Interventional

Funder types

Other

Identifiers

Details and patient eligibility

About

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.

Full 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.

Enrollment

15 estimated patients

Sex

All

Ages

18+ years old

Volunteers

Accepts Healthy Volunteers

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

Trial design

Primary purpose

Supportive Care

Allocation

N/A

Interventional model

Single Group Assignment

Masking

None (Open label)

15 participants in 1 patient group

Voluntary blood donors
Experimental group
Description:
Voluntary blood donors undergoing standard blood donation while measuring electrical impedance of the chest .
Treatment:
Device: Electrical impedance tomography measurement

Trial contacts and locations

2

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Central trial contact

Vaclav Ort, M.Eng.

Data sourced from clinicaltrials.gov

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