Clinical trial Recruiting at 1 site Observational Ages 65 and up

Examining brain characteristics related to cognitive issues after surgery in older patients

Official title: Correlation Between Postoperative Cognitive-related Adverse Reactions and Brain Metabolomic Characteristics in Elderly Patients

Run by Shanghai Ninth People's Hospital Affiliated to Shanghai Jiao Tong University · NCT05555693 · Data updated 2026-11-12

This study is trying to see if there are specific brain changes in older patients that might explain why some have trouble thinking clearly after surgery.

Quick facts

Study typeObservational
Ages65 Years and up
SexAll
Enrollment200 (estimated)
SponsorShanghai Ninth People's Hospital Affiliated to Shanghai Jiao Tong University
Academic / other
Locations1 site (Shanghai, Shanghai Municipality)
StatusRecruiting
StartedJuly 27, 2022
Main results expectedJanuary 1, 2027
Study endsDecember 1, 2027
Registry record updatedSeptember 27, 2022
Trial IDNCT05555693 on ClinicalTrials.gov

Is this trial a fit for you?

Likely a good fit

Ideal candidates for this study are elderly patients aged 65 years or older who are undergoing surgery at the participating hospital.

Probably not a fit

Patients with a history of preoperative psychosis, diagnosed Alzheimer's disease, or those with significant preoperative cognitive impairments may not benefit from this study.

A plain-English reading of the study's rules. Only the study team can confirm whether you qualify.

What this trial studies

This observational study investigates the relationship between postoperative cognitive dysfunction (POCD) and brain metabolomic characteristics in elderly patients. It focuses on understanding how cognitive difficulties following anesthesia and surgery may be linked to underlying brain metabolism and neuropsychiatric conditions. Researchers will collect clinical data, EEG readings, brain metabolomic characteristics using Magnetic Resonance Spectroscopy, as well as blood gas data and blood samples from participants. The goal is to identify potential biomarkers and mechanisms associated with POCD in this vulnerable population.

Why it matters

Potential benefit: If successful, this study could lead to improved understanding and management of cognitive dysfunction in elderly patients after surgery.

How similar studies have gone: While there is ongoing research into POCD and its connections to neuropsychiatric diseases, this specific approach focusing on brain metabolomic characteristics is relatively novel.

Who can join: the full rules

Show full inclusion / exclusion criteria
Inclusion Criteria:

* 65 years or older .
* Complete the operation in our hospital
* ASA classification I-II level
* Agree to participate in this research and agree to sign an informed consent form

Exclusion Criteria:

* History of preoperative psychosis and psychotropic drug use
* The subject is diagnosed with AD;
* Abnormal preoperative mental scale assessment
* Have a history of emergency rescue during the perioperative period
* metal implants
* Postoperative immobilization patients

Where it's running

  • Shanghai 9Th Hospital
    Shanghai, Shanghai Municipality, China
    Recruiting

Study contacts

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How to take part

  1. Review the eligibility criteria above with your treating physician.
  2. Check the official listing on ClinicalTrials.gov for the latest contact details and recruitment status.
  3. Contact the study coordinator or principal investigator to ask for pre-screening. Pre-screening is free and never obligates you to enroll.
Last reviewed 2026-11-14 by the Find a Trial editorial team. Information on this page is for educational purposes and is not medical advice. Always consult qualified healthcare professionals about clinical trial participation.