Geneva, Jan. 12 -- International Clinical Trials Registry received information related to the study (ChiCTR2500114652) titled 'Intrathecal injection of nalbuphine for improving postoperative pain after anorectal surgery-a randomized controlled double-blind study' on Dec. 16, 2025.
Study Type: Interventional study
Study Design:
Parallel
Primary Sponsor: The First Affiliated Hospital of Henan University of CM
Condition:
Postoperative pain of anorectal surgery under single spinal anesthesia
Intervention:
Control group:Received 0.5% bupivacaine 2ml and 0.5ml normal saline subarachnoid injection
Fentanyl-bupivacaine group :Intrathecal injection of 0.5% bupivacaine (2 ml) plus fentanyl (25 µg / 0.5 ml)
Recruitment Status: Not Recr...