20
Participants
Start Date
October 13, 2025
Primary Completion Date
November 30, 2026
Study Completion Date
November 30, 2026
Stellate ganglion block
Patients will receive a SGB
Sham injection of saline
Patients will receive a subcutaneous sham injection of saline
Ropivacaine
The SGB group will receive ropivacaine 0.5% 10ml
Normal saline
The control group will receive normal saline in the sham injection.
Stanford University School of Medicine, Stanford
Stanford University, Stanford
Stanford University
OTHER