New nerve block may ease breathing after shoulder surgery in obese patients

NCT ID NCT07216820

Recruiting now Symptom relief Sponsor: University of North Carolina, Chapel Hill Source: ClinicalTrials.gov ↗

First seen Jun 25, 2026 · Last updated Jun 27, 2026 · Updated 2 times

Summary

This study compares two types of nerve blocks for shoulder surgery in adults with obesity. The standard block can sometimes weaken breathing muscles, while the experimental 'phrenic-sparing' block aims to avoid that. Researchers will measure breathing problems and pain control in 68 participants to see if the new block is safer and just as 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 block (bupivacaine and dexamethasone injection)
What this could lead to: If successful, this approach could reduce early breathing difficulties after shoulder surgery in people with obesity, improving recovery and safety.
What could go wrong: This is a small, early-phase trial (68 participants) focused on short-term outcomes, so results may not apply broadly. The phrenic-sparing block may also provide less effective pain control.

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Conditions

The condition(s) this trial relates to.

Obesity obesity disorder

As listed by the trial registrant

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

OBESITY SHOULDER SURGERY

Contacts and locations

Locations

University of North Carolina Hospitals
RECRUITING

Chapel Hill, North Carolina, 27599, United States

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