Shoulder numbing shot may briefly paralyze breathing muscle, study finds
NCT ID NCT04209504
First seen Nov 01, 2025 · Last updated Jun 22, 2026 · Updated 33 times
Summary
This study observes 60 adults having shoulder surgery to see how often a common numbing shot (interscalene block) temporarily paralyzes one side of the diaphragm. Participants are split into three groups receiving different numbing drugs or a catheter. The main goal is to measure diaphragm paralysis the day after surgery using ultrasound.
Disclaimer
Read more
Show less
This is a summary of
the original study
.
Summaries may miss details or leave out important information. Before applying or accepting participation, make sure you have read and understood the full study. Curemydisease.com takes no responsibility whatsoever for anything missed, misunderstood, or acted upon as a result of our summary — we know it does not capture everything.
This is a summary of the original study . Summaries may miss details or leave out important information. Before applying or accepting participation, make sure you have read and understood the full study. Curemydisease.com takes no responsibility whatsoever for anything missed, misunderstood, or acted upon as a result of our summary — we know it does not capture everything.
Get updates
Get notified about this study
Sign up to get updates when this study changes or when new studies for SHOULDER PAIN are added.
Genom att skicka in godkänner du våra Användarvillkor
Contacts and locations
Show contact details
Enter your email to view the contact information for this study.
Genom att skicka in godkänner du våra Användarvillkor
Study contacts
-
Contact
Phone: •••-•••-•••• Email: •••••@•••••
-
Contact
Phone: •••-•••-•••• Email: •••••@•••••
Locations
-
Duke University Hospital
RECRUITINGDurham, North Carolina, 27710, United States
Contact Phone: •••-•••-•••• Email: •••••@•••••
Contact
Contact
Contact Phone: •••-•••-•••• Email: •••••@•••••
Contact
What this could mean
Our plain-language read of the trial. This is informational only — not medical advice or a prediction.
Active substance
Ropivacaine and bupivacaine (numbing drugs)
What this could lead to
If successful, this could help doctors choose the safest numbing method for shoulder surgery, reducing breathing side effects.
What could go wrong
This is a small, early observational study (60 people) that only measures a temporary side effect, not a treatment. Results may not apply to everyone.
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.