Clinical trial Recruiting at 1 site Observational Ages 19 and up

Analyzing EEG Changes During Surgery to Measure Pain Response

Official title: Quantitative Analysis of EEG Changes in Response to Nociception

Run by Gangnam Severance Hospital · NCT06342570 · Data updated 2026-11-12

This study is trying to see how brain activity changes during and after laparoscopic surgery to better understand pain responses in patients under general anesthesia.

Quick facts

Study typeObservational
Ages19 Years and up
SexAll
Enrollment109 (estimated)
SponsorGangnam Severance Hospital
Academic / other
Locations1 site (Seoul)
StatusRecruiting
StartedApril 21, 2024
Main results expectedDecember 30, 2026
Study endsDecember 30, 2026
Registry record updatedApril 30, 2024
Trial IDNCT06342570 on ClinicalTrials.gov

Is this trial a fit for you?

Likely a good fit

Ideal candidates for this study are adults aged 19 and older who are scheduled for laparoscopic surgery.

Probably not a fit

Patients with certain heart conditions, central nervous system diseases, or those on specific medications may not benefit from this study.

A plain-English reading of the study's rules. Only the study team can confirm whether you qualify.

What this trial studies

This observational study aims to quantify nociception in patients undergoing laparoscopic surgery by using the Analgesia Nociception Index (ANI) during general anesthesia. It will analyze the differences in electroencephalogram (EEG) readings based on the level of nociception experienced by patients. Additionally, the study will continue to assess nociception during the recovery phase and correlate EEG changes with nociception levels. The goal is to enhance understanding of pain responses in surgical settings.

Why it matters

Potential benefit: If successful, this study could lead to improved pain management strategies during and after laparoscopic surgeries.

How similar studies have gone: While the approach of using EEG to measure nociception is not widely established, similar studies have shown promising results in understanding pain responses.

Who can join: the full rules

Show full inclusion / exclusion criteria
Inclusion Criteria:

• Patients aged ≥ 19 undergoing laparoscopic surgery

Exclusion Criteria:

* Patients with arrhythmia
* Patients with pacemaker implantation
* Patients who have received a heart transplant
* Patients taking medications that may affect ANI (antimuscarinics, alpha-agonist, beta blockers, etc.)
* Patients with central nervous system disease (dementia, stroke, epilepsy, brain tumor, psychiatric disease, etc.)
* Patients who cannot understand the consent form

Where it's running

  • GangnamSeverance Hospital
    Seoul, South Korea
    Recruiting

Study contacts

Similar studies

Other studies for the same condition or treatment. Recruiting studies are listed first.

How to take part

  1. Review the eligibility criteria above with your treating physician.
  2. Check the official listing on ClinicalTrials.gov for the latest contact details and recruitment status.
  3. Contact the study coordinator or principal investigator to ask for pre-screening. Pre-screening is free and never obligates you to enroll.
Last reviewed 2026-11-14 by the Find a Trial editorial team. Information on this page is for educational purposes and is not medical advice. Always consult qualified healthcare professionals about clinical trial participation.