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Can a finger sensor perfectly measure pain during heart surgery?

NCT ID NCT06817005

Knowledge-focused Sponsor: University Hospital, Strasbourg, France Source: ClinicalTrials.gov ↗

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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 Results may not be published yet.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This status has not been confirmed recently, so it may be out of date.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 Aug 19, 2026 · Last updated Aug 20, 2026 · Updated 1 time

Summary

This trial tests whether a finger sensor, called the NOL index, can reliably measure pain signals during heart bypass surgery. The sensor tracks several body signals to help doctors give the right amount of pain medication. The study involves 50 adults undergoing this type of surgery. The main goal is to see if the sensor works without losing signal during the procedure.

What this could mean

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

Active substance
NOL index monitoring device (PMD200)
What this could lead to
If the NOL index works reliably during heart surgery, it could help doctors tailor pain medication precisely, reducing both pain and opioid side effects.
What could go wrong
This is a small feasibility study, so results may not apply broadly. The sensor might lose signal during surgery, and it's unclear if it improves outcomes.

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

50 people

The number who actually took part.

Started

Mar 2025

Finished

Jun 2026

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

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: * adult patients * patients undergoing on-pump cardiac surgery * specific cardiac procedure : coronary artery bypass grafting Exclusion criteria: * patients with preoperative cardiac arrhythmia * patients with a cardiac pacemaker * emergency cardiac surgical procedure * peripheral artery disease stage 2 * patients in shock prior to the cardiac surgery : mean arterial pressure 65mmHg with vasopressors * persons participating in another interventional research * patient refusal

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As listed by the trial registrant

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

Cardiac surgery Nociception Nol index

Contacts and locations

Locations

  • Service d'Anesthésie Réanimation Cardiovasculaire

    Strasbourg, 67000, France

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