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Association between serum biomarkers of neutrophil extracellular traps (NETs) and postoperative delirium in elderly patients with lower extremity orthopedic surgery: a prospective cohort stud

Association between serum biomarkers of neutrophil extracellular traps (NETs) and postoperative delirium in elderly patients with lower extremity orthopedic surgery: a prospective cohort stud

Status
Active, not recruiting
Phases
Unknown
Study type
Observational
Source
ChiCTR
Registry ID
ChiCTR2600122681
Enrollment
Unknown
Registered
2026-04-16
Start date
2026-04-16
Completion date
Unknown
Last updated
2026-04-20

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

Conditions

postoperative delirium

Interventions

POD group:None
Non-POD group:None

Sponsors

Hebei General Hospital
Lead Sponsor

Eligibility

Sex/Gender
All
Age
60 Years to No maximum

Inclusion criteria

Inclusion criteria: 1. Patients aged >= 60; 2. Patients with an American Society of Anesthesiologists (ASA) physical status classification of II-III; 3. Patients to undergo lower extremity orthopedic surgery.

Exclusion criteria

Exclusion criteria: 1. Lower extremity fracture caused by high-energy trauma, or lower extremity fracture complicated with severe trauma to the craniocerebral, thoracic or abdominal regions (Definition of high-energy trauma: fall height >= 3 meters, motor vehicle collision, heavy object impact, etc.); 2. Moribund state on admission (expected to die within 24 hours) or severe organ failure (e.g., multiple organ dysfunction syndrome, MODS); 3. Preoperative cognitive impairment, defined as: based on previously validated norms and epidemiological evidence (with the influence of educational level taken into account), the score of Mini-Mental State Examination (MMSE) is lower than the education-adjusted threshold (illiteracy <= 17 points, primary school education <= 20 points, middle/technical secondary school education <= 22 points, senior high school and above education <= 23 points); 4. History of previous neurological diseases (e.g., Parkinson's disease, sequelae of stroke, epilepsy, multiple sclerosis, central nervous system infection, etc.); 5. Long-term use of psychotropic drugs, glucocorticoids/immunosuppressants before surgery (continuous use within the recent 3 months); 6. Severe visual, auditory or language communication impairment, unable to cooperate with the 3-Minute Confusion Assessment Method for delirium evaluation and relevant research procedures; 7. Inability to complete specimen collection or follow-up .

Design outcomes

Primary

MeasureTime frame
The incidence of postoperative delirium;MPO-DNA;CitH3; S100ß ;

Countries

China

Contacts

Public ContactZhang Meng

Hebei General Hospital

877109869@qq.com+86 311 8598 8127

Outcome results

None listed

Source: ChiCTR (via WHO ICTRP) · Data processed: Apr 23, 2026