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Ultrasound may improve spinal anesthesia success in obese Moms-to-Be

NCT ID NCT07549776

Symptom relief Sponsor: Instituto Nacional Materno Perinatal, Peru 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 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 Results may not be published yet.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This status has not been confirmed recently, so it may be out of date.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 26, 2026 · Last updated Jul 08, 2026 · Updated 3 times

Summary

This study compared two ways to find the right spot for spinal anesthesia in 100 obese women having C-sections. One group used ultrasound to guide the needle, the other used traditional touch-based landmarks. The goal was to see which method leads to a successful first attempt, reducing pain and complications.

What this could mean

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

Active substance
Ultrasound-guided preprocedural marking
What this could lead to
If ultrasound proves better, it could make spinal anesthesia faster and less painful for obese women undergoing C-sections.
What could go wrong
This is a small, completed trial with 100 participants, so results may not apply to all hospitals or patients. Ultrasound requires extra training and equipment.

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

100 people

The number who actually took part.

Started

Jul 2025

Finished

Jan 2026

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

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: * Age ≥ 18 years * Pregnant women undergoing cesarean section * Body mass index (BMI) ≥ 30 kg/m² at the time of cesarean section * Scheduled for cesarean section under spinal anesthesia Exclusion Criteria: * Congenital spinal deformities * History of spinal surgery * Coagulopathy * Infection at the puncture site * Allergy to local anesthetics * Emergency cesarean section (NICE category 1)

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Conditions

The condition(s) this trial relates to.

Obesity obesity disorder

As listed by the trial registrant

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

Cesarean section Obesity

Contacts and locations

Locations

  • National Maternal and Perinatal Institute

    Lima, Lima Province, 15001, Peru

More trials for these conditions

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