300
Participants
Start Date
August 31, 2025
Primary Completion Date
August 31, 2026
Study Completion Date
October 31, 2026
sufentanil-ropivacaine combination
Epidural labor analgesia will be conducted using the sufentanil-ropivacaine combination (0.4 microgram/ml sufentanil + 0.072% ropivacaine).
dexmedetomidine-esketamine-ropivacaine combination 1
Epidural labor analgesia will be conducted using the dexmedetomidine-esketamine-ropivacaine combination 1 (0.4 microgram/ml dexmedetomidine + 0.15 mg/ml esketamine + 0.036% ropivacaine).
dexmedetomidine-esketamine-ropivacaine combination 2
Epidural labor analgesia will be conducted using the dexmedetomidine-esketamine-ropivacaine combination 2 (0.4 microgram/ml dexmedetomidine + 0.2 mg/ml esketamine + 0.036% ropivacaine).
Peking University First Hospital, Beijing
Peking University First Hospital
OTHER