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New study aims to find safer anesthesia for shoulder surgery

NCT ID NCT06703281

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 Results may not be published yet.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This status has not been confirmed recently, so it may be out of date.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

Summary

This study compared two types of nerve blocks used for shoulder surgery to see which one causes less breathing trouble. The interscalene block can sometimes paralyze the diaphragm, making it hard to breathe. The superior trunk block may avoid this. Researchers measured diaphragm movement with ultrasound and lung function with a breathing test in 123 patients. The goal is to find a safer option for anesthesia.

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 procedure (interscalene block or superior trunk block)
What this could lead to
If one block clearly causes less diaphragm paralysis, it could become the preferred choice for shoulder surgery, reducing breathing complications.
What could go wrong
This is a small, completed study, so results may not apply to all patients. The blocks still carry risks like nerve damage or allergic reactions.

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

123 people

The number who actually took part.

Started

Dec 2024

Finished

Jan 2025

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 80 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: * Patients scheduled for elective shoulder arthroscopic surgery. * Age between 18 and 80 years. * American Society of Anesthesiologists (ASA) physical status I-III. * Written informed consent obtained. Exclusion Criteria: * Refusal to undergo peripheral nerve block. * Pre-existing peripheral nerve disorders. * Known respiratory, hepatic, renal, or cardiovascular diseases. * Allergy to local anesthetics. * Active infection at the block site. * Body mass index (BMI) \> 40 kg/m². * Coagulopathy or current anticoagulant therapy. * Sepsis or systemic infection. * History of prior surgery at the intended block site. * Neurological deficits or psychiatric disorders affecting cooperation. * Inability to perform spirometry or comply with study procedures.

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As listed by the trial registrant

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

Complication following peripheral nerve block Phrenic nerve paralysis Regional anesthesia morbidity

Contacts and locations

Locations

  • Gazi University School of Medicine

    Ankara, 06560, Turkey (Türkiye)

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