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Brain waves may predict Post-Surgery confusion in seniors

NCT ID NCT05992506

Knowledge-focused Sponsor: University of Chile Source: ClinicalTrials.gov ↗

What the study statuses mean

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Recruitment status, easiest to join first

Recruiting now
This trial is taking on new participants right now.
Not yet recruiting
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 This study
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 Results may not be published yet.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This status has not been confirmed recently, so it may be out of date.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 looks at whether brain wave readings taken during surgery can help predict if older adults will experience confusion after the operation. Researchers will monitor 264 patients aged 60 and older who are having high-risk elective surgery. The goal is to find a reliable way to identify those at risk, so doctors can take steps to prevent or manage this serious complication.

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 264 people

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

Started

Sep 2023

Expected to finish

Jun 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

Patients at risk of developing POD will be evaluated in the pre and postoperative period for cognitive dysfunction and the appearance of POD. In the intraoperative period, an EEG-based monitorization will be performed using a SedLine (Masimo, CA) Monitor.

Ages

60 to 100 years

Sex

Anyone

Healthy volunteers

Accepted

You do not need to have the condition being studied to take part.

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 ≥ 60 years old * Scheduled for high-risk elective surgery * Need for at least 3 days of hospital stay after surgery * Surgery performed under general anesthesia * Written informed consent for participation in the trial Exclusion Criteria: * Patients with preoperative delirium or dementia * Patients using neuroleptics drug during the past 6 months * Patients with a history of encephalopathy, psychosis, stroke or brain trauma with neurologic sequels * The use of ketamine or dexmedetomidine during surgery * Emergency surgery * Mechanical ventilation during the 72 after surgery * Analphabetism * Patients who do not talk Spanish * Patients included in another clinical trial

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Conditions

The condition(s) this trial relates to.

Emergence Delirium

As listed by the trial registrant

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

Postoperative delirium

Contacts and locations

Locations

  • Hospital Clinico Universidad de Chile

    Santiago, Santiago Metropolitan, 8380456, Chile

  • Instituto Nacional del Cancer

    Santiago, Santiago Metropolitan, Chile

More trials for these conditions

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