Postoperative delirium
Conditions
Interventions
Sponsors
Eligibility
Inclusion criteria
Inclusion criteria: (1) Patients aged over 65 who are scheduled to undergo elective major non-cardiac, non-neurological surgery under general anaesthesia (with an expected duration of more than 2 hours); (2) Have signed an informed consent form; (3) Are able to communicate fluently in Chinese
Exclusion criteria
Exclusion criteria: 1) Life expectancy of less than 6 months; (2) Patients with a history of psychiatric or neurological disorders, such as depression, severe central nervous system depression, schizophrenia, epilepsy, Parkinson’s disease, delirium or Alzheimer’s disease; (3) Patients who are unable to undergo cognitive testing due to blindness, severe deafness, communication difficulties or dementia; (4) Patients routinely taking psychotropic or opioid medications prior to surgery; (5) Patients who have experienced any cerebrovascular event within the past three months, such as a stroke or transient ischaemic attack; (6) Patients with a history of alcohol abuse or withdrawal within the past six months; (7) Patients currently participating in other clinical trials; (8) Patients scheduled to undergo a second surgical procedure within seven days of the planned surgery.
Design outcomes
Primary
| Measure | Time frame |
|---|---|
| Incidence of postoperative delirium (POD); | — |
Secondary
| Measure | Time frame |
|---|---|
| Severity and duration of POD;Short-term (1 month) and long-term (6 months) cognitive function scores following surgery;Incidence of postoperative complications, length of hospital stay, and all-cause mortality at 30 days and 6 months;Neuroimaging measures (fMRI functional connectivity strength, DWI white matter integrity);Electrophysiological measures (ERP latency/amplitude, resting-state power spectrum); | — |
Countries
China
Contacts
The First Affiliated Hospital of Anhui Medical University