Perioperative neurocognitive dysfunction
Conditions
Interventions
Sponsors
Eligibility
Inclusion criteria
Inclusion criteria: 1. More than 65 to 90 year old; 2. ASA grade II-III; 3. Spinal anesthesia is adopted; 4. The surgical procedure was hip or knee replacement.
Exclusion criteria
Exclusion criteria: 1. Contraindication of spinal anesthesia; 2. Preoperative history of cognitive dysfunction (stroke, neurological disease or mental illness); 3. Anemia patients with poor preoperative general condition, severe liver and kidney function impairment or Hb < 90g/l; 4. Long-term use of drugs that affect cognitive function, alcohol or drug abuse; 5. Patients with MMSE<=23 and who cannot complete blood sample collection or cognitive function assessment; 6. Patients who are unable to communicate normally (including those with limited hearing, dysgraphia, language barrier and deaf-mute); 7. Patients with massive intraoperative blood loss (over 800ml/l) or intraoperative blood transfusion.
Design outcomes
Primary
| Measure | Time frame |
|---|---|
| NLRP3 inflammasome;a7nAChR;IL-1 beta;Patient cognitive function;IL-18;caspase1; | — |
Secondary
| Measure | Time frame |
|---|---|
| IL-6;TNF-a; | — |
Countries
China
Contacts
Qilu hospital of shandong university (Qingdao)