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3D ultrasound may help place epidurals in obese Moms-to-Be

NCT ID NCT03405311

Symptom relief Sponsor: The University of Texas Medical Branch, Galveston 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
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 Results may not be published yet.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This status has not been confirmed recently, so it may be out of date.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 Jun 26, 2026 · Last updated Jun 27, 2026 · Updated 1 time

Summary

This study tested whether a 3D ultrasound device (Accuro) helps anesthesiologists place epidural needles for pain relief during labor in women with a BMI of 40 or higher. The device was compared to the standard blind approach using touch. The trial was terminated early, so results are limited, but the goal was to reduce needle insertions and improve success.

What this could mean

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

Active substance
Rivanna Accuro 3D Ultrasound Device
What this could lead to
If it works, this could make labor epidural placement easier and more successful for obese women, reducing pain and complications.
What could go wrong
The trial was terminated early with only 40 participants, so results are limited. The device may not improve outcomes enough to justify its use.

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

40 people

The number who actually took part.

Started

Feb 2018

Finished

Jan 2024

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 to 50 years

Sex

Female participants only

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: * American Society of Anesthesiologists physical status class I, II, or III. * Term pregnancy. * Requesting epidural analgesia for anticipated vaginal delivery. * BMI\>or = 40. Exclusion Criteria: * Contraindication for epidural analgesia * Inability to adequately understand the consent form. * Incarcerated patients. * Patients with known spinal deformities. * Allergies to ultrasound gel. * Allergies to local anesthetics

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Conditions

The condition(s) this trial relates to.

morbid obesity Pain

As listed by the trial registrant

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

Obesity, morbid Pain Pregnancy

Contacts and locations

Locations

  • The University of Texas Medical Branch

    Galveston, Texas, 77555, United States

More trials for these conditions

Other studies related to the condition(s) this trial covers.