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Nerve block showdown: which works best for pain after obesity surgery?

NCT ID NCT06841783

Symptom relief Sponsor: Kasr El Aini Hospital 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 Results may not be published yet.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This status has not been confirmed recently, so it may be out of date.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 24, 2026 · Last updated Jun 27, 2026 · Updated 1 time

Summary

This study compared two ultrasound-guided nerve block techniques—erector spinae plane block and modified thoracoabdominal nerve block—for pain control in 40 obese patients undergoing laparoscopic sleeve gastrectomy. The goal was to see which method delays the need for rescue pain medication and reduces overall opioid use. Both techniques aim to provide effective pain relief while minimizing opioid-related risks like nausea and breathing problems.

What this could mean

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

Active substance
nerve block (ultrasound-guided erector spinae plane block or modified thoracoabdominal nerve block)
What this could lead to
If one technique proves better, it could offer a safer, opioid-sparing pain management option for obese patients after weight-loss surgery.
What could go wrong
This is a small, completed trial with only 40 participants, so results may not apply to all patients. Both techniques are well-established, so no major breakthrough is expected.

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 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 to 65 years

Sex

Anyone

Healthy volunteers

Accepted

You do not need to have the condition being studied to take part.

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: * 1\. ASA II \& ASA III. 2. Gender both males and females 3. Age group: from 18 to 65 years old Exclusion Criteria: * • Patient refusal. * Uncooperative patients. * Allergy to local anesthetics. * Anatomical abnormality at injection site. * Redo or combined cholecystectomy surgery. * Infection at injection site.

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Conditions

The condition(s) this trial relates to.

morbid obesity obesity disorder

As listed by the trial registrant

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

Obesity, morbid

Contacts and locations

Locations

  • Kasr Alainy

    Cairo, Egypt

More trials for these conditions

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