160
Participants
Start Date
February 5, 2025
Primary Completion Date
May 10, 2025
Study Completion Date
May 10, 2025
Sufentanil injection
Different concentrations of sufentanil were administered to three different subgroups of patients in the same way
Placebo
Placebo
Second Hospital of Shanxi Medical University, Taiyuan
Second Hospital of Shanxi Medical University
OTHER