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Correlation between POD, gamma waves and CSF biomarkers in elderly patients undergoing hip/knee arthroplasty

A clinical study on the correlation between postoperative delirium, gamma waves and cerebrospinal fluid biomarkers in elderly patients undergoing hip or knee arthroplasty

Status
Active, not recruiting
Phases
Unknown
Study type
Observational
Source
ChiCTR
Registry ID
ChiCTR2600123019
Enrollment
Unknown
Registered
2026-04-21
Start date
2026-04-21
Completion date
Unknown
Last updated
2026-04-27

For informational purposes only — not medical advice. Sourced from public registries and may not reflect the latest updates. Terms

Conditions

Postoperative delirium

Interventions

Sponsors

The First People's Hospital of Changde City
Lead Sponsor

Eligibility

Sex/Gender
All
Age
65 Years to No maximum

Inclusion criteria

Inclusion criteria: 1. Age greater than or equal to 65 years old 2. Undergoing elective hip/knee joint replacement surgery under combined spinal-epidural anesthesia 3. Weight range 50 to 80 kg 4. ASA classification II-III 5. Prior to the operation, cognitive function was intact and the patient had the educational background to complete the preoperative neuropsychological tests.

Exclusion criteria

Exclusion criteria: 1.Mini-Mental State Examination (MMSE) score <= 24; 2.Severe mental disorders and severe systemic diseases; 3.Coagulation dysfunction; 4.Central nervous system infection, head trauma, epilepsy, neurological diseases, etc.; 5.Missing data and postoperative loss to follow-up

Design outcomes

Primary

MeasureTime frame
Preoperative and intraoperative bilateral electroencephalogram waveforms and raw data;Common vital signs of the patient during the operation;The incidence of postoperative delirium;The potential relationship between the immunometabolic chemical substances in patients with postoperative delirium and their brain electrical waves;The incidence rates of postoperative nausea and vomiting (PONV) and other complications (postoperative infection, deep vein thrombosis);Immunometabolic analysis of cerebrospinal fluid in patients with postoperative delirium;

Countries

China

Contacts

Public ContactHuajing Guo

The First People's Hospital of Changde City

ghj0736@163.com+86 736 778 8038

Outcome results

None listed

Source: ChiCTR (via WHO ICTRP) · Data processed: May 1, 2026