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Can digital tools read pain in anesthetized patients?

NCT ID NCT05218551

Knowledge-focused Sponsor: Göteborg University 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 Results may not be published yet.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This status has not been confirmed recently, so it may be out of date.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 Sep 10, 2026 · Last updated Sep 11, 2026 · Updated 1 time

Summary

Doctors usually judge pain in anesthetized patients by watching heart rate and blood pressure, but those signals can change for reasons other than pain. This observational study at Gothenburg University compares several digital pain-monitoring methods with each other and with standard vital signs in 50 adults having surgery under general anesthesia or sedation. Researchers collect data to see how well the different methods agree, which could help determine whether any of them reliably detect pain during surgery.

What this could mean

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

What this could lead to
If the digital methods prove reliable, doctors could one day monitor pain in anesthetized patients more accurately than with heart rate and blood pressure alone.
What could go wrong
This is a small observational study with 50 patients, so it cannot prove that any method works better. The digital readings may not agree with each other or with standard vital signs, and the results may not apply to other hospitals or patient groups.

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

50 people

The number who actually took part.

Started

Jan 2022

Finished

Nov 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.

Who is studied

° Patients over 18 yrs old, who will be anesthetized or sedated under intervention surgery or surgery.

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: * All patients over 18 yrs old, * Patients who will be anesthetized or sedated under intervention surgery or surgery Exclusion Criteria: * Not speaking Swedish * Neuro cognitive diorders e.g. dementia or can't respond on information given. * Chronic pain * Acute brain trauma * Pregnancy

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Conditions

The condition(s) this trial relates to.

Nociceptive Pain

As listed by the trial registrant

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

Nociceptive pain

Contacts and locations

Locations

  • Sahlgrenska University hospital

    Gothenburg, Gothenburg, 41310, Sweden

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