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Correlation study of frontal lobe brain potential changes in predicting postoperative cognitive impairment in elderly patients

Correlation study of frontal lobe brain potential changes in predicting postoperative cognitive impairment in elderly patients

Status
Recruiting
Phases
Unknown
Study type
Observational
Source
ChiCTR
Registry ID
ChiCTR2500104348
Enrollment
Unknown
Registered
2025-06-16
Start date
2025-01-07
Completion date
Unknown
Last updated
2025-06-24

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

Conditions

Postoperative cognitive impairment

Interventions

Observation group:None

Sponsors

Affiliated Hospital of Yan 'an University
Lead Sponsor

Eligibility

Sex/Gender
All
Age
60 Years to No maximum

Inclusion criteria

Inclusion criteria: 1. >=60 years old; 2. Undergo general anesthesia; 3.ASA Grade I-III; 4. Elective long operation ( >= 2.5h)

Exclusion criteria

Exclusion criteria: 1. Patients with mental illness such as dementia, mild cognitive impairment or delirium before operation; 2. Refuse to sign the informed consent; 3. Unable to cooperate with scale assessment

Design outcomes

Primary

MeasureTime frame
The amplitude of the rise or fall of the EEG;Critical value of brain potential change in patients with postoperative cognitive impairment;—

Secondary

MeasureTime frame
Amplitude of brain potential change 10 minutes after marker events (hypotension, hypertension, hypothermia, hypercapnia, hypocapnia) during anesthesia;Eeg spectrogram and topographic map characteristics of postoperative cognitive impairment group;—

Countries

China

Contacts

Public ContactZhang Erfei

Affiliated Hospital of Yan 'an University

zhangerfei09@126.com+86 138 9117 0975

Outcome results

None listed

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