children undergoing circumcision
Conditions
Interventions
Sponsors
Eligibility
Inclusion criteria
Inclusion criteria: 1 ASA (American Society of Anesthesiology) grade =II, age 6 to 12 years old, school-age children with pericarpium ligation. 2. Children without coagulation dysfunction, puncture site without infection and other contraindications of caudal block.
Exclusion criteria
Exclusion criteria: 1. Children with failed operation or unclear effect of caudal block. 2. Children with temporary intraoperative change of operation method. 3. Children with long-term anesthetic and analgesic drugs added during operation.
Design outcomes
Primary
| Measure | Time frame |
|---|---|
| success rate of caudal block; | — |
Secondary
| Measure | Time frame |
|---|---|
| duration of block efficacy; | — |
Countries
China