168
Participants
Start Date
September 10, 2021
Primary Completion Date
November 1, 2023
Study Completion Date
July 31, 2024
Tramadol hydrochloride
"pre-tramadol group: 1mg/kg of tramadol will be intravenously injected 15 minutes before anesthesia.~post-tramadol group: 1mg/kg of tramadol will be intravenously injected when the incision was washed and sutured."
Normal Saline
"pre-tramadol group: Normal Saline will be injected intravenously when the incision was washed and sutured.~post-tramadol group: Normal Saline will be injected intravenously 15 minutes before anesthesia."
RECRUITING
Affiliated Cancer Hospital of Shantou University Medical College Medical, Shantou
Affiliated Cancer Hospital of Shantou University Medical College
OTHER