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Can blood pressure waveforms replace the esophageal probe for cardiac output?

NCT ID NCT04926220

Diagnosis Sponsor: Assistance Publique - Hôpitaux de Paris Source: ClinicalTrials.gov ↗

What the study statuses mean

This study's is highlighted.

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
The trial has finished. Results may not be published yet.
Stopped early This study
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This status has not been confirmed recently, so it may be out of date.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 Sep 22, 2026 · Last updated Sep 23, 2026 · Updated 1 time

Summary

During major surgery, doctors often need to know how much blood the heart is pumping. Esophageal Doppler is a standard method, but it requires a probe in the food pipe. This trial compares two devices that estimate cardiac output from arterial blood pressure waveforms, MostCareUp and Argos, against esophageal Doppler in 36 adults having surgery or interventional radiology under general anesthesia. Researchers measure how well the three methods agree when blood pressure or fluid levels change.

What this could mean

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

Active substance
Cardiac output monitoring devices: esophageal Doppler, MostCareUp waveform analysis, and Argos monitor
What this could lead to
If the waveform methods track cardiac output as well as esophageal Doppler, doctors could estimate blood flow without placing an esophageal probe.
What could go wrong
The trial is small, with 36 participants, and compares measurements rather than patient outcomes. The methods may not agree closely enough during real hemodynamic changes to replace esophageal Doppler.

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.

Participants

36 people

The number who actually took part.

Started

Sep 2021

Finished

Jul 2022

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.

Who is studied

Adult patients eligible for an interventional radiology procedure, surgery under general anesthesia, or admitted to intensive care unit for postoperative organ failure, benefiting from intraoperative and postoperative hemodynamic optimization in intensive care including routine blood pressure monitoring and measurement of cardiac output by esophageal Doppler.

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: * Major patients (≥ 18 years ) * Eligible for an interventional radiology procedure or surgery under general anesthesia * Monitoring of invasive blood pressure and cardiac output by trans-esophageal Doppler. * Patients informed and having expressed their non-opposition to participation in this research Exclusion Criteria: * Patients under 18 years old * Atrial fibrillation * Contraindication to trans-esophageal doppler * Patient opposed to protocol participation * Pregnant woman * Patient under judicial protection * Patient without affiliation to a social security scheme

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Conditions

The condition(s) this trial relates to.

hypertensive disorder

As listed by the trial registrant

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

Blood pressure Cardiac output General anesthesia Hemodynamic instability Intensive care Interventional radiology Organ failure Surgery

Contacts and locations

Locations

  • AP-HP, Lariboisière Hospital, Department of Anesthesiology and Intensive Care

    Paris, 75010, France

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