Using heart and lung ultrasound plus bedside exams to measure fluid tolerance in ICU patients

Ultrasound and Clinical Approach for the Dynamic Assessment of Fluid Tolerance in the Intensive Care Unit : FLUID-REACT Study

Observational Centre Hospitalier Universitaire Dijon · NCT06415916

This project will use cardiac and lung ultrasound together with bedside clinical signs to see if ICU patients needing fluids can safely tolerate additional volume.

Quick facts

Study typeObservational
Enrollment100 (estimated)
Ages18 Years and up
SexAll
SponsorCentre Hospitalier Universitaire Dijon Academic / other
Locations1 site (Dijon)
Trial IDNCT06415916 on ClinicalTrials.gov

What this trial studies

This observational study enrolls adult ICU patients who require volume expansion and records serial cardiac and lung ultrasound alongside clinical signs of congestion. Operators will use ultrasound scores (for example VExUS and lung ultrasound findings) and bedside measures such as capillary refill time and oedema to characterize dynamic fluid tolerance. Patients with poor echogenicity, chronic atrial arrhythmia, or mechanical cardiac support are excluded, and participation is limited to those treated at the enrolling center. Data will be used to link ultrasound and clinical profiles with subsequent tolerance or intolerance of additional intravenous fluids.

Who should consider this trial

Good fit: Adult ICU patients admitted to CHU Dijon who need intravenous volume expansion and can undergo cardiac and lung ultrasound with informed non-opposition are ideal candidates.

Not a fit: Patients with poor ultrasound windows, chronic atrial arrhythmias, mechanical cardiac assist devices, or those who are pregnant or under legal protection are unlikely to benefit or be eligible.

Why it matters

Potential benefit: If successful, the approach could help clinicians tailor fluid therapy to avoid fluid overload and reduce organ dysfunction related to venous congestion.

How similar studies have performed: Previous work using lung ultrasound and venous congestion scores has shown promising signals for guiding fluid decisions, but definitive, widely adopted protocols are still lacking.

Eligibility criteria

Show full inclusion / exclusion criteria
Inclusion Criteria:

* Adult patient
* Patient who has provided non-opposition (or health proxy or a close relative if unable to receive the information)
* Patient admitted to intensive care and requiring volume expander

Exclusion Criteria:

* Person subject to a legal protection measure (curatorship, guardianship)
* Person subject to a legal protection measure
* Pregnant, parturient or breast-feeding women
* Poor echogenicity assessed by the operator
* Chronic AC/FA
* Mechanical cardiac assistance

Where this trial is running

Dijon

Study contacts

How to participate

  1. Review the eligibility criteria above with your treating physician.
  2. Visit the official trial page on ClinicalTrials.gov for the most current contact information and recruitment status.
  3. Contact the listed study coordinator or principal investigator to request pre-screening. Pre-screening is free and never obligates you to enroll.
Conditions Volume Expander
Last reviewed 2026-06-13 by the Find a Trial editorial team. Information on this page is for educational purposes and is not medical advice. Always consult qualified healthcare professionals about clinical trial participation.