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Ultrasound reveals how a neck nerve block may impact the diaphragm

NCT ID NCT07722052

Knowledge-focused Sponsor: Jose Manuel López González 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 Results may not be published yet.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This status has not been confirmed recently, so it may be out of date.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 Jul 23, 2026 · Last updated Jul 24, 2026 · Updated 1 time

Summary

This study uses ultrasound to measure diaphragm movement and breathing in 15 adults receiving a stellate ganglion block — a nerve injection for certain pain conditions. The goal is to see how often the block temporarily paralyzes one side of the diaphragm. Researchers also check lung function with a breathing test.

What this could mean

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

Active substance
ultrasound-guided stellate ganglion block with levobupivacaine
What this could lead to
If the block rarely affects breathing, it may be safer than thought for treating certain pain conditions.
What could go wrong
This is a very small observational study with only 15 people, so results may not apply widely. The block itself carries risks like nerve injury or bleeding.

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.

Participants

15 people

The number who actually took part.

Started

Dec 2024

Finished

Jun 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.

Who is studied

After approval of the study by the Principality of Asturias Drug Research Ethics Committee (CEImPA), Spain, and obtaining informed consent from the participants, all consecutive patients undergoing a first diagnostic US-SGB for sympathetic nervous system-mediated disorders were prospectively included.

Ages

18 years and older

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 over 18 years of age. * patients with sympathetic nervous system-mediated disorders. Exclusion Criteria: * patients younger than 18 years of age. * patients with severe chronic obstructive pulmonary disease. * previous diaphragmatic paralysis or neuromuscular disease. * inability to undergo diaphragmatic ultrasound. * patients with neck anatomy considered unsuitable for the procedure (including previous neck surgery, burns, extensive scarring or large goiters resulting in distortion of normal cervical anatomy). * contraindications to the interventional technique (such as infection at the puncture site, or refusal to provide consent).

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Conditions

The condition(s) this trial relates to.

respiratory paralysis

As listed by the trial registrant

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

Diaphragm ultrasound Hemidiaphragmatic paralysis Stellate ganglion block

Contacts and locations

Locations

  • FINBA

    Oviedo, Principality of Asturias, 33001, Spain

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