400
Participants
Start Date
May 25, 2015
Primary Completion Date
November 11, 2017
Study Completion Date
November 30, 2019
General anesthesia alone
General anesthesia is performed during surgery; patient-controlled intravenous analgesia is provided after surgery.
Combined epidural-general anesthesia
Combined epidural-general anesthesia is performed during surgery; patient-controlled epidural analgesia is provided after surgery.
Peking University First Hospital, Beijing
Peking University First Hospital
OTHER