New nerve block technique may reduce breathing risks during shoulder surgery
NCT ID NCT03352687
First seen Jun 25, 2026 · Last updated Jun 27, 2026 · Updated 1 time
Summary
This study looked at how often a nerve block for shoulder surgery causes temporary paralysis of the diaphragm, the main breathing muscle. Researchers compared two ways of giving the block to 84 patients. The goal was to see which approach is safer for people with breathing problems.
What this could mean
Our plain-language read of the trial. This is informational only, not medical advice or a prediction.
- What this could lead to
- If successful, this could help doctors choose a safer nerve block approach for shoulder surgery, reducing the risk of breathing problems.
- What could go wrong
- This is a small, completed study with only 84 participants. It does not test a treatment, so it won't directly lead to a new therapy. Results may not apply to all patients.
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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84 people
The number who actually took part.
- Started
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Feb 2018
- Finished
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Feb 2019
- 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 years and older
- 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.
Show the full entry requirements Hide 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: * to benefit from scheduled arthroscopic surgery of the shoulder under general anesthesia * Affiliate or beneficiary of a social security scheme * Having signed the informed consent Exclusion Criteria: * the existence of contralateral diaphragmatic paralysis * pre-existing respiratory insufficiency * impossibility of performing diaphragmatic ultrasound * the patient's refusal * the existence of major spontaneous or acquired haemostatic disorders * an infection at the point of puncture * allergy to local anesthetics * Pregnant or likely to be pregnant * Patients under protection of the adults (guardianship, curators or safeguard of justice) * Patients whose cognitive state does not allow assessment by the scales used
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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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University Hospital
Toulouse, 31000, France
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