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New nerve block techniques may protect breathing during shoulder surgery recovery

NCT ID NCT05920421

Symptom relief Sponsor: Zagazig University 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 Results may not be published yet.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This status has not been confirmed recently, so it may be out of date.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 Jun 27, 2026 · Last updated Jun 27, 2026

Summary

This study tested two newer nerve block methods for shoulder surgery pain relief, aiming to avoid a common side effect: temporary paralysis of the diaphragm, the main breathing muscle. 87 adults having shoulder surgery received one of three types of nerve blocks. The researchers measured diaphragm movement and pain levels to see if the newer blocks were safer and still effective.

What this could mean

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

Active substance
nerve blocks (subomohyoid infraclavicular, subomohyoid subscapularis, interscalene)
What this could lead to
If successful, these alternative nerve blocks could provide effective pain relief for shoulder surgery while lowering the risk of temporary diaphragm paralysis.
What could go wrong
This is a small, completed study (87 people) comparing different techniques. Results may not apply to all patients or surgeries, and the blocks may still carry some risk of diaphragm issues.

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

87 people

The number who actually took part.

Started

Jul 2023

Finished

Dec 2024

Lead sponsor

A government agency

The lead sponsor is a government body.

Who can take part

This study's own entry requirements. Only the study team can say for certain whether you qualify.

Ages

21 to 60 years

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: * Patient acceptance. * ASA I and ASA II. * Age 21-60 years old. * Both gender. * BMI \< 35 Kg/m2. * Accepted mental state of the patient. * Elective Unilateral upper limb surgeries at the level of the shoulder. * Time of surgery less than 2 hours Exclusion Criteria: * \- Patient refusal. * Peripheral neuropathy. * Pathological coagulopathy. * Infection at the injection site. * Untreated pneumothorax. * Disturbed conscious level. * An allergy to local anesthetics used in this study

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As listed by the trial registrant

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

Shoulder surgeries operations

Contacts and locations

Locations

  • Emad Hamdy Mohamed Morsy

    Zagazig, Sharqia Province, 44519, Egypt