364
Participants
Start Date
May 1, 2023
Primary Completion Date
June 30, 2025
Study Completion Date
December 31, 2025
Esketamine
The drug esketamine will be added to the experimental group as opposed to the control group.
Sufentanil
Sufentanil for labour analgesia in the control group
RECRUITING
Women's hospital, school of medicine, Zhejiang university, Hangzhou
Peking University First Hospital
OTHER
Obstetrics & Gynecology Hospital of Fudan University
OTHER
Beijing Obstetrics and Gynecology Hospital
OTHER
Women's Hospital School Of Medicine Zhejiang University
OTHER