New device could spot failed pain blocks during mastectomy
NCT ID NCT03832920
First seen Jun 26, 2026 · Last updated Jun 27, 2026 · Updated 1 time
Summary
This study looked at 100 women having a mastectomy to see if a device called the Analgesia Nociception Index (ANI) can detect when a nerve block isn't working. The device measures pain signals during general anesthesia. If it works, doctors could adjust pain treatment right away, improving recovery.
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 successful, this could help doctors quickly tell if a nerve block is working during breast surgery, leading to better pain control.
- What could go wrong
- This is a small, observational study, not a treatment trial. The device may not reliably detect block failure in all patients.
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Conditions
The condition(s) this trial relates to.
As listed by the trial registrant
The condition terms exactly as the trial's registrant entered them.
Contacts and locations
Locations
-
Institut de Cancérologie de Lorraine (ICL)
Vandœuvre-lès-Nancy, France
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