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Heart ultrasound may help surgeons avoid fluid mistakes

NCT ID NCT06188039

Diagnosis Sponsor: Uniwersytecki Szpital Kliniczny w Opolu Source: ClinicalTrials.gov ↗

What the study statuses mean

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Recruitment status, easiest to join first

Recruiting now
This trial is taking on new participants right now.
Not yet recruiting
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 This study
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 Results may not be published yet.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This status has not been confirmed recently, so it may be out of date.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 Jun 25, 2026 · Last updated Jun 27, 2026 · Updated 2 times

Summary

This study tested whether a heart ultrasound measure called the superior vena cava collapsibility index (SVC-CI) can predict which patients need fluids during major abdominal or aortic surgery. Researchers gave 150 patients a small fluid bolus and measured heart output changes. The goal is to help doctors give fluids more precisely, reducing risks like fluid overload or dehydration.

What this could mean

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

What this could lead to
If successful, this could give doctors a reliable way to guide fluid therapy during surgery, potentially reducing complications and deaths.
What could go wrong
This is a small, completed study focused on a diagnostic test, not a treatment. The findings may not apply to all surgeries or patients.

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

150 people

The number who actually took part.

Started

Jan 2024

Finished

Nov 2025

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: * Signed ICF (informed consent form) * Age \> 18 years old Eligibility criteria for each arm (additionally to mandatory criteria) * Arm 1 - Patients undergoing open aortic surgery * Arm 2 - Patients undergoing laparotomy * Arm 3 - Patients undergoing laparotomy with sinus rhytm Exclusion Criteria: 1. Patients who are deemed to be at risk of harm due to excessive fluid administration: * End-stage renal disease (eGFR \<15ml/kg/min) * Decompensated heart failure * Respiratory failure prior to surgery * Other cases where the risk of harm from fluid overload is assessed to be significant by the investigator 2. Medical contraindication to the use of transesophageal echocardiography: * Active ulcerative gastritis or bleeding from upper gastrointestinal tract * Past history of esophageal or gastric surgery * Esophageal varices or other esophageal disease (stricture, Barret's disease, perforation in the past, achalasia)

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As listed by the trial registrant

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

Fluid responsiveness Surgery Transesophageal echocardiography

Contacts and locations

Locations

  • Opole University Hospital

    Opole, 45-401, Poland

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