Postoperative Cognitive Dysfunction
Conditions
Interventions
B Group (Part II):None
A Group (Part I):None
Sponsors
Peking University Third Hospital
Eligibility
Sex/Gender
All
Age
65 Years to No maximum
Inclusion criteria
Inclusion criteria: 1. Age >= 65 years old; 2. ASA >= Class II; 3. Planned to undergo general anesthesia surgery; 4. Non-cardiac elective surgery patients; 5. Expected surgery time over 2 hours; 6. Voluntarily signed the informed consent.
Exclusion criteria
Exclusion criteria: 1. Emergency surgery; 2. Severe narrowing of both carotid arteries or other issues affecting ultrasound monitoring; 3. Surgeries that need neck exposure (like thyroid surgery, carotid surgery, or anterior neck surgery); 4. Changes in position during surgery (like needing to lie on your back, side, or stomach, or a combination); 5. Hearing or vision problems that make cognitive testing impossible; 6. Unexpected discharge or if someone refuses to take part in the study.
Design outcomes
Primary
| Measure | Time frame |
|---|---|
| Carotid artery hemodynamic parameters;Regional Cerebral Oxygen Saturation; | — |
Secondary
| Measure | Time frame |
|---|---|
| Bispectral Index; | — |
Countries
China
Contacts
Public ContactYang Zhou
Peking University Third Hospital
Outcome results
None listed