80
Participants
Start Date
May 20, 2020
Primary Completion Date
January 1, 2023
Study Completion Date
June 1, 2023
Sufentanil
Sufentanil(0.1μg/kg) was administered before anesthesia induction.
Hydromorphone
Hydromorphone(20μg/kg)was administered before anesthesia induction.
Oxycodone
Oxycodone(60μg/kg) was administered before anesthesia induction.
normal Saline
normal saline 10ml
Peking University People's Hospital, Beijing
Peking University People's Hospital
OTHER