New shoulder block could reduce breathing risks after surgery
NCT ID NCT07173894
First seen Jun 27, 2026 · Last updated Jun 27, 2026
Summary
This study tested two ways to numb the shoulder during surgery: the standard interscalene block done by anesthesiologists, and a newer shoulder field block done by surgeons. 64 adults having shoulder surgery were randomly assigned to one method. The goal was to see if the field block provides equal pain relief with fewer side effects like breathing trouble or arm weakness. Pain levels, satisfaction, and complications were tracked for 48 hours after surgery.
What this could mean
Our plain-language read of the trial. This is informational only, not medical advice or a prediction.
- Active substance
- local anesthetics (lidocaine, bupivacaine)
- What this could lead to
- If successful, the shoulder field block could offer a safer, equally effective pain relief option for shoulder surgery with fewer breathing problems or arm weakness.
- What could go wrong
- This is a small, completed study with only 64 participants, so results may not apply to everyone. The field block might not control pain as well as the standard block.
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
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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
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64 people
The number who actually took part.
- Started
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Aug 2024
- Finished
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Jan 2026
- Lead sponsor
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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
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18 to 75 years
- Sex
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Anyone
- Healthy volunteers
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Not accepted
This study is not open to healthy volunteers. The entry requirements below say who it is open to.
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Copied word for word from the study's registry entry, so the wording is the study team's rather than ours.
Inclusion Criteria: * Age between 18 and 75 years * Scheduled for arthroscopic or open shoulder surgery Exclusion Criteria: * Prior surgery or trauma to the shoulder * Revision shoulder surgery * Fibromyalgia * Pregnancy * Contraindications to regional anesthesia (e.g., allergy to local anesthetics, coagulopathy, local site infection) * Preexisting neuropathy or myopathy of the surgical limb * History of chronic opioid use * Cognitive impairment or inability to understand pain scoring systems (e.g., dementia)
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Conditions
The condition(s) this trial relates to.
As listed by the trial registrant
The condition terms exactly as the trial's registrant entered them.
Contacts and locations
Locations
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Rabin medical center- Hasharon hospital
Petah Tikva, Central District, 49372, Israel