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Heart surgery brain fog under the microscope: 600-Patient study launches

NCT ID NCT07643194

Knowledge-focused Sponsor: Beijing Anzhen Hospital Source: ClinicalTrials.gov ↗

What the study statuses mean

This study's is highlighted.

Recruitment status, easiest to join first

Recruiting now
This trial is taking on new participants right now.
Not yet recruiting This study
Registered, but not yet taking participants.
By invitation only
Not open to general applications. Only people the study team invites can take part.
Paused
Paused for now. It may or may not start again.
Ongoing
Running, but no longer taking on new participants.
Completed
The trial has finished. Results may not be published yet.
Stopped early
Stopped early, before it reached the end. That can be for many reasons, including safety.
Cancelled
Cancelled before anyone took part.

Expanded access (not trials)

Expanded access
Not a trial. This treatment can be requested outside a study, case by case, for people who qualify.
Expanded access (paused)
Not a trial. The treatment can normally be requested outside a study, but is unavailable right now.
Expanded access (ended)
Not a trial. The treatment could once be requested outside a study, but no longer can.
Approved
The treatment has been approved, so it is available normally rather than through this programme.

When the status isn't known

Details not published
The full record has not been published yet, so there is little to show here.
Status unknown
This status has not been confirmed recently, so it may be out of date.

First seen Jun 27, 2026 · Last updated Jun 27, 2026

Summary

This study will follow 600 adults having off-pump heart bypass surgery to see how often memory and thinking problems occur afterward. Participants take a simple thinking test before and after surgery. The goal is to understand what factors might increase the risk of these problems.

This is an AI summary of the original study and may miss details. Read our disclaimer.

Study facts

What this study's own registry entry says, in plain language.

Participants

About 600 people

The number the study aims to enrol. It can still change while the study runs.

Expected to start

May 2026

An estimate. Start dates often move.

Expected to finish

Dec 2026

An estimate. End dates often move.

Lead sponsor

Other sponsor

The registry's catch-all category, for sponsors it does not file as a company, a government agency, or a research network.

Who can take part

This study's own entry requirements. Only the study team can say for certain whether you qualify.

Who is studied

Adult patients scheduled to undergo elective off-pump coronary artery bypass grafting at Beijing Anzhen Hospital, Capital Medical University, will be prospectively enrolled. Eligible patients must be able to complete preoperative cognitive assessments and provide informed consent. Patients will be followed after surgery to evaluate postoperative cognitive dysfunction.

Ages

18 years and older

Sex

Anyone

Healthy volunteers

Not accepted

This study is not open to healthy volunteers. The entry requirements below say who it is open to.

Show the full entry requirements

Copied word for word from the study's registry entry, so the wording is the study team's rather than ours.

Inclusion Criteria: * Age 18 years or older * Scheduled to undergo elective off-pump coronary artery bypass grafting * American Society of Anesthesiologists physical status classification I to IV * Able to complete preoperative cognitive assessments, including the Mini-Mental State Examination and the Montreal Cognitive Assessment * Written informed consent provided by the patient or family member Exclusion Criteria: * Emergency surgery * Pre-existing diagnosed cognitive impairment or history of psychiatric disease * Preoperative cognitive impairment * Severe neurological disease, such as sequelae of stroke, that may interfere with cognitive assessment * Severe visual or hearing impairment that prevents completion of cognitive assessment * Inability to understand Chinese or presence of language communication barriers

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Conditions

The condition(s) this trial relates to.

coronary artery disorder Postoperative Cognitive Complications

As listed by the trial registrant

The condition terms exactly as the trial's registrant entered them.

Postoperative cognitive dysfunction (POCD)

How to take part

Only the study team decides who joins. These are the ways to reach them.

  1. The places running it

    1 site. The list below names each one and where it is.

  2. The official record

    ClinicalTrials.gov lists the study team's own contact details, including names and phone numbers. We don't republish those.

    Open the record ↗

  3. A doctor treating you

    A doctor who knows your case can contact a study site on your behalf, and can tell you whether this study is worth pursuing at all.

Contacts and locations

Locations

  • Beijing Anzhen Hospital, Capital Medical University

    Beijing, Beijing Municipality, 100029, China

More trials for these conditions

Other studies related to the condition(s) this trial covers.