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Transcranial Alternative Current Stimulation for postoperative delirium in elderly patients undergoing hip and knee replacement surgery:a randomized controlled trial

Efficacy of Transcranial Alternating Current Stimulation on Post-surgery Delirium in Elderly Patients Undergoing Hip and Knee Replacement Surgery: A Randomized Controlled Trial

Status
Active, not recruiting
Phases
Unknown
Study type
Interventional
Source
ChiCTR
Registry ID
ChiCTR2500099808
Enrollment
Unknown
Registered
2025-03-28
Start date
2025-04-01
Completion date
Unknown
Last updated
2026-01-05

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

Conditions

postoperative delirium

Interventions

Active tACS Group:1. Receive real transcranial alternating current stimulation. 2. Parameters: 10 Hz frequency, 2 mA intensity, each lasting 30 minutes. 3. Stimulating electrodes were placed in the le
sham?tACS Group:1. Receive pseudo-stimulation for blinded control.2. There were only 30 s of current crescendo and decrescendo processes at the beginning and end of the stimulus. 3. No continuous 2 mA

Sponsors

Shanghai Jiaotong University Affiliated Sixth People ’s Hospital
Lead Sponsor

Eligibility

Sex/Gender
All
Age
65 Years to No maximum

Inclusion criteria

Inclusion criteria: 1 Age: >= 65 years old 2 American Society of Anesthesiologists (ASA) grade ?-? 3 Type of surgery: patients undergoing elective hip or knee replacement surgery

Exclusion criteria

Exclusion criteria: 1 Refusal to sign the consent form 2 Mini-Cog score <= 1 3 Nervous system diseases: such as Alzheimer's disease, Parkinson's disease 4 History of mental illness: patients with a previous history of serious mental illness (e.g., major depression, schizophrenia) 5 Severe hearing impairment 6 Taking central nervous system drugs: patients who are using sedatives, antidepressants, antipsychotic drugs, or other central nervous system drugs 7 Contraindications to transcranial electrical stimulation: such as implantable medical devices, history of epilepsy, severe scalp lesions or skin infections, intracranial tumors or other serious brain lesions 8 Acute infection or systemic inflammation: Acute infection or inflammatory state will increase the incidence of postoperative complications and may affect the independent assessment of delirium 9 Other study participation: patients who participated in other clinical trials within the last 3 months, so as not to confound the study results with multiple interventions

Design outcomes

Primary

MeasureTime frame
postoperative delirium (POD);

Secondary

MeasureTime frame
Duration of delirium;Severity of delirium;Subtypes of Delirium;Anxiety;Depression;Pain;Quality of sleep;Markers of inflammation;Cognitive function;Quality of postoperative recovery;Length of stay;Incidence of complications within 30 days after surgery;Adverse events;All-cause mortality;

Countries

China

Contacts

Public ContactZhaojing

Shanghai Jiaotong University Affiliated Sixth People ’s Hospital

zhaojing@shsmu.edu.cn+86 189 3017 3656

Outcome results

None listed

Source: ChiCTR (via WHO ICTRP) · Data processed: Feb 4, 2026