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Ultrasound might predict which heart surgery patients face catheter insertion trouble

NCT ID NCT04730479

Knowledge-focused Sponsor: University Hospital, Montpellier 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 Results may not be published yet.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This status has not been confirmed recently, so it may be out of date.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 Aug 05, 2026 · Last updated Aug 06, 2026 · Updated 1 time

Summary

This study looks at whether measuring the size of the radial artery with ultrasound before surgery can predict if placing a small tube (catheter) in the wrist will be difficult. It involves 330 adults scheduled for heart or aortic surgery. The goal is to see if ultrasound measurements can help doctors anticipate and avoid multiple puncture attempts.

What this could mean

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

Active substance
Ultrasound measurement of the radial artery's internal diameter
What this could lead to
If ultrasound can reliably predict which patients are likely to have catheter insertion problems, it could help doctors choose better insertion sites or techniques in advance, reducing complications and improving patient comfort.
What could go wrong
This is an observational study, so it won't directly test a new treatment. The predictive value of ultrasound may not be high enough to change clinical practice, and results may not apply to all patient groups or settings.

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

330 people

The number who actually took part.

Started

Apr 2021

Finished

Apr 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 who have an scheduled cardiac or aortic surgery at Montpellier University Hospital

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: * Aged from 18 years old * Be operated for a scheduled cardiac or aortic surgery * Be able to complete all the visits and follow the study procedures * Subjects must be covered by public health insurance Exclusion Criteria: * Patients protected by law or Absence of signed informed consent * Emergency Surgery Patient * Patient already with an arterial catheter * Patient with Radial Arterial Catheter Contraindication * Radial arterial catheter placed by an anesthesiologist nurse student

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As listed by the trial registrant

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

Cardiac and aortic surgery

Contacts and locations

Locations

  • University hospital of Montpellier

    Montpellier, 34295, France

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