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Ultrasound could guide safer fluid dosing after heart surgery

NCT ID NCT07792707

Diagnosis Sponsor: Centre hospitalier de l'Université de Montréal (CHUM) Source: ClinicalTrials.gov ↗

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Recruitment status, easiest to join first

Recruiting now
This trial is taking on new participants right now.
Not yet recruiting This study
Registered, but not yet taking participants.
By invitation only
Not open to general applications. Only people the study team invites can take part.
Paused
Paused for now. It may or may not start again.
Ongoing
Running, but no longer taking on new participants.
Completed
The trial has finished. Results may not be published yet.
Stopped early
Stopped early, before it reached the end. That can be for many reasons, including safety.
Cancelled
Cancelled before anyone took part.

Expanded access (not trials)

Expanded access
Not a trial. This treatment can be requested outside a study, case by case, for people who qualify.
Expanded access (paused)
Not a trial. The treatment can normally be requested outside a study, but is unavailable right now.
Expanded access (ended)
Not a trial. The treatment could once be requested outside a study, but no longer can.
Approved
The treatment has been approved, so it is available normally rather than through this programme.

When the status isn't known

Details not published
The full record has not been published yet, so there is little to show here.
Status unknown
This status has not been confirmed recently, so it may be out of date.

First seen Aug 28, 2026 · Last updated Aug 28, 2026

Summary

This pilot trial tests whether a structured ultrasound assessment can help doctors manage fluids better in patients recovering from cardiac surgery. Participants are randomly assigned to either standard care or an ultrasound-guided strategy that measures fluid tolerance and responsiveness. The study aims to see if this information changes clinical decisions and whether the approach is practical in the intensive care unit. It also explores effects on fluid balance, kidney function, and overall recovery.

What this could mean

Our plain-language read of the trial. This is informational only, not medical advice or a prediction.

Active substance
Structured point-of-care ultrasound assessment (VExUS score and fluid responsiveness)
What this could lead to
If it works, ultrasound-guided fluid management could reduce complications like kidney injury and shorten recovery after cardiac surgery.
What could go wrong
This is a small pilot study focused on feasibility, so it may not detect clear clinical benefits. The ultrasound assessment may not change treatment decisions or improve outcomes.

This is an AI summary of the original study and may miss details. Read our disclaimer.

Study facts

What this study's own registry entry says, in plain language.

Phase

Not a phased trial

Phase numbers describe drug development. The registry uses this when they do not apply, as it does for trials of devices, procedures or behaviour changes, and for observational studies.

Participants

About 90 people

The number the study aims to enrol. It can still change while the study runs.

Expected to start

Oct 2026

An estimate. Start dates often move.

Expected to finish

Oct 2027

An estimate. End dates often move.

Lead sponsor

Other sponsor

The registry's catch-all category, for sponsors it does not file as a company, a government agency, or a research network.

Who can take part

This study's own entry requirements. Only the study team can say for certain whether you qualify.

Ages

18 years and older

Sex

Anyone

Healthy volunteers

Not accepted

This study is not open to healthy volunteers. The entry requirements below say who it is open to.

Show the full entry requirements

Copied word for word from the study's registry entry, so the wording is the study team's rather than ours.

Inclusion Criteria: * Adults aged ≥18 years * Undergoing planned cardiac surgery with anticipated postoperative admission to the intensive care unit Exclusion Criteria: * Known stage 5 chronic kidney disease according to the KDIGO classification (eGFR less than 15 mL/min/1.73m2) or on renal replacement therapy * Planned or ongoing mechanical circulatory support * Planned or history of heart transplantation

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Conditions

The condition(s) this trial relates to.

acute kidney injury Hyperemia

As listed by the trial registrant

The condition terms exactly as the trial's registrant entered them.

Acute kidney injury Cardiac surgical procedures Fluid therapy Hemodynamics

How to take part

Only the study team decides who joins. These are the ways to reach them.

  1. The places running it

    2 sites. The list below names each one and where it is.

  2. The official record

    ClinicalTrials.gov lists the study team's own contact details, including names and phone numbers. We don't republish those.

    Open the record ↗

  3. A doctor treating you

    A doctor who knows your case can contact a study site on your behalf, and can tell you whether this study is worth pursuing at all.

Contacts and locations

Locations

  • Centre hospitalier de l'Université de Montréal (CHUM)

    Montreal, Quebec, H2X 0C1, Canada

  • Montreal Heart Institute

    Montreal, Quebec, H1T 1C8, Canada

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