PND
Conditions
Interventions
Sponsors
Eligibility
Inclusion criteria
Inclusion criteria: 1. Aged >=65 years old; 2. American Society of Anesthesiologists (ASA) classification I ~ II; 3. Elective hip replacement surgery; 4. Have received primary school education or above; 5. Preoperative simple Mental State Scale (MMSE) score >=24 points.
Exclusion criteria
Exclusion criteria: 1. Severe visual and auditory disorders; 2. Unable to cooperate with the completion of the test; 3. Serious heart, lung, brain, liver and kidney diseases; 4. There were mental illness and cognitive impairment before operation; 5. A history of substance abuse or drug addiction; 6. History of local anesthetic allergy; 7. Puncture site infection.
Design outcomes
Primary
| Measure | Time frame |
|---|---|
| PND; | — |
Secondary
| Measure | Time frame |
|---|---|
| VAS;sufentanil dosage 24h after surgery;HMGB1;IL-6; | — |
Contacts
Ningbo Medical Center Lihuili Hospital