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Brain-wave guided anesthesia may sharpen mental recovery after surgery in older adults

NCT ID NCT07714928

Knowledge-focused Sponsor: Region Örebro County 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
Running, but no longer taking on new participants.
Completed This study
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 Results may not be published yet.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This status has not been confirmed recently, so it may be out of date.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 Jul 20, 2026 · Last updated Jul 21, 2026 · Updated 1 time

Summary

This study investigates whether using a brain-wave monitor (BIS) to precisely control anesthesia depth during hand or arm surgery helps older adults (65+) recover their thinking skills faster. Participants receive either BIS-guided general anesthesia, standard clinically guided general anesthesia, or intravenous regional anesthesia without general anesthesia. The researchers compare cognitive recovery and overall quality of recovery up to three months after surgery.

What this could mean

Our plain-language read of the trial. This is informational only, not medical advice or a prediction.

Active substance
Bispectral Index (BIS) monitoring to guide anesthesia depth
What this could lead to
If BIS guidance improves cognitive recovery, it could lead to better postoperative outcomes for older adults undergoing surgery.
What could go wrong
This is a small, single-center trial, and the cognitive benefits may be modest or not clinically significant. The intervention is a monitoring technique, not a drug, so the potential impact is limited.

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.

Phase

Not a phased trial

Phase numbers describe drug development. The registry uses this when they do not apply, as it does for trials of devices, procedures or behaviour changes, and for observational studies.

Participants

112 people

The number who actually took part.

Started

Jan 2015

Finished

Jun 2024

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.

Ages

65 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 65 years or older. * Scheduled to undergo hand or arm surgery using either intravenous regional anesthesia or general anesthesia. * Able to understand the study information and provide informed consent. * Able to complete the Postoperative Quality of Recovery Scale assessments and cognitive tests. Exclusion Criteria: * Inability to complete the recovery or cognitive assessments. * Deafness or hearing impairment that prevented completion of the assessments. * Bispectral Index monitoring could not be applied or used because of technical or surgical reasons. * Expected duration of surgery of less than 30 minutes or more than 4 hours. * Allergy to nuts or soybeans in participants scheduled to receive general anesthesia. * Pregnancy. * Substance abuse.

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Conditions

The condition(s) this trial relates to.

Emergence Delirium Postoperative Cognitive Complications

As listed by the trial registrant

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

Postoperative cognitive dysfunction (POCD) Postoperative delirium Postoperative recovery in elderly patients

Contacts and locations

Locations

  • Örebro University Hospital

    Örebro, 70185, Sweden

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