99
Participants
Start Date
March 10, 2025
Primary Completion Date
October 30, 2026
Study Completion Date
December 30, 2026
1.5% Lidocaine
After successful epidural puncture, 3ml of 1.5% lidocaine was injected as a test dose
1.0% Lidocaine
After successful epidural puncture, 5ml of 1% lidocaine was injected as a test dose
0.5% Lidocaine
After successful epidural puncture, 10ml of 0.5% lidocaine was injected as a test dose
The Second Affiliated Hospital of Chongqing Medical University, Chongqing
The Second Affiliated Hospital of Chongqing Medical University
OTHER