rebound pain after nerve block
Conditions
Interventions
Low concentration group:0.2% ropivacaine 20ml
High concentration group:0.5% ropivacaine 20ml
Sponsors
the Fifth People's Hospital of Chengdu
Eligibility
Sex/Gender
All
Age
18 Years to 80 Years
Inclusion criteria
Inclusion criteria: 1. Aged 18 years and over, able to understand NRS pain assessment; 2. With the American Society of Anesthesiologists (ASA) physical status I–II; 3. Scheduled for elective arthroscopic shoulder surgery during study.
Exclusion criteria
Exclusion criteria: 1. Contraindications to peripheral nerve block such as local anaesthetic allergy, skin damage at puncture site or abnormal coagulation; 2. Patients with chronic pain or long-term history of taking sedative and analgesic drugs; 3. Patients with previous shoulder surgery or existing fracture, or nerve damage around shoulder joint; 4. Patients with diabetes; 5. Patients with severe liver and kidney insufficiency; 6. People with mental or neurological disorders; 7. Body weight < 35kg; 8. Reject to participate.
Design outcomes
Primary
| Measure | Time frame |
|---|---|
| Incidence of pain outbreak within 24 hours after operation; | — |
Secondary
| Measure | Time frame |
|---|---|
| Rebound Pain Score; | — |
Countries
China
Contacts
Public ContactZheng Tingting
the Fifth People's Hospital of Chengdu
Outcome results
None listed