cardiovascular surgery: Heart bypass surgery; Heart valve replacement surgery
Study summary
To explore the predictive value of Electroencephalography features in Perioperative Neurocognitive Disorders in patients undergoing cardiovascular surgery under general anesthesia
Eligibility
Sex
ALL
Min age
60 Years
Max age
—
Healthy volunteers
Accepted
Inclusion Criteria:
1. Written informed consent
2. undergoing coronary artery bypass surgery or valve replacement surgery under general anaesthesia
3. ASA grade: II-IV
4. older than 60 years
5. Able to complete cognitive function tests
Exclusion criteria:
1. history of severe neurological diseases and psychiatric diseases
2. history of drug abuse
3. severe hearing or vision impairment
4. preoperative delirium
5. serious adverse reactions such as cardiac arrest and cardiopulmonary resuscitation during surgery
6. patients undergoing secondary surgery in a short period
7. participation in concurrent clinical trials
Primary outcome measure(s)
The predictive value of preoperative Electroencephalography features in patients with postoperative cognitive dysfunction following cardiovascular surgery — 2025.08 Data was acquired on the ward using a 10-20 system with a standard 32-channel EEG cap and an EEG instrument (BP Company, Gilching, Germany). Patients were tested using cognitive assessment scales before and after surgery.
Cognitive levels were assessed 1 day before surgery and 1 week after surgery (7±2 days) using The Montreal Cognitive Assessment (MoCA) . Patients were followed up one month (30±2 days) after surgery using the Telephone version of the Montreal Cognitive Assessment Scale (T-MoCA).
This page summarises publicly available registry data for informational purposes — not medical advice. Eligibility is determined by each study team; patients should discuss participation with their clinician.
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