ClinicalTrials.gg
Status unknownNCT03749811PURFTUpdated Mar 29, 2019

Pupillometry-guided Remifentanil Infusion Versus Conventional Administration in Children

An interventional study of Pupillometry in Opioid Use, sponsored by Seoul National University Hospital. Status unknown at 1 site in South Korea. Open to participants aged 3 Years to 12 Years. Per ClinicalTrials.gov, last updated 2019-03-29.

Sponsored by Seoul National University Hospital · Not applicable, Interventional, and Treatment

The sponsor has not verified this record recently (last verified Mar 2019), so the status shown — last known as Recruiting — may be out of date.
Phase
Not applicable
Study type
Interventional
Enrollment
60
Allocation
Randomized
Ages
3 Years to 12 Years
Sex
All
01

Study summary

Our study aims to compare the total intravenous dose of remifentanil per anesthesia hour and body weight in two groups of pediatric surgical patients - an interventional group with remifentanil infusion under pupillometry monitoring, and control group without pupillometry - to figure out whether pupillometry monitoring may reduce remifentanil consumption during anesthesia while providing sufficient analgesia for surgical noxious stimuli.

Read the detailed description

comparison of total used opioid

02

Conditions studied

  • Opioid Use

Browse trials for

Keywords

  • Pupil dilatory reflex
  • Remifentanil
  • Analgesia
03

In context

Agnosia

1,269 studies on the registry are indexed under Agnosia; 524 are open to participants now.

This study's planned enrollment of 60 is below the median of 75 across 1,089 interventional studies indexed under Agnosia.

Browse Agnosia studies →

Lead sponsor

Seoul National University Hospital is the lead sponsor of 1,898 studies on the registry; 274 are open to participants now.

Of its 12 completed or terminated interventional studies of FDA-regulated products, 2 (17%) have results posted.

Counted across the registry records on this site, refreshed daily.

04

Who can participate

Ages eligible
3 Years to 12 Years
Sexes eligible
All
Accepts healthy volunteers
No

Go through the criteria one by one — yes, no or not sure — and take the list to your doctor or the study team. Kept in this browser only.

Inclusion criteria

  • Pediatric patients who are at 3 to 6 years of age, scheduled to undergo elective surgery with estimated time of operation 2 hours or longer, under general anesthesia
  • American Society of Anesthesiologists physical status classification (ASA class) I - II
  • Patient and his/her parents are willing to participate after explanation of the purpose, materials, methods, possible risks and benefits of the research

Exclusion criteria

Exclusion Criteria:

  • History of hypersensitivity/allergic reaction to the drugs which are used in general anesthesia
  • Preoperative use of analgesics, antipsychotics and/or antiepileptics
  • Mental retardation
  • Medications related to hindrance of autonomic nerve system activity, e. g., beta blockers
  • Underlying ophthalmic diseases
05

Study design

Phase
Not applicable
Primary purpose
Treatment
Allocation
Randomized
Intervention model
Single group
Masking
Triple (Participant, Investigator, Outcomes assessor)
Enrollment
60 participants (estimated)

Study arms

  • Experimental
    Pupillometry group

    A group of participants who receive remifentanil infusion under pupillometry monitoring.

    Device: Pupillometry

  • No intervention
    Conventional group

    A group of participants who receive remifentanil infusion without pupillometry monitoring; their analgesic dose is mainly determined via hemodyamic change.

Interventions

  • DevicePupillometry

    After induction of anesthesia and determination of the loss of consciousness of the participant, baseline diameter of pupil is measured by electronic pupillometry device. During anesthesia, participant's pupil diameter is repeatedly measured with 5-minute interval. Pupil dilation of 30% or more compared to baseline is indicative of insufficient analgesia.

06

What researchers measure

Primary outcomes

  1. remifentanil total dose in microgram

    Remifentanil total dose divided by anesthesia time (minute) and patient weight (kg).

    Time frame: from beginning of anesthesia to the end of the anesthesia

  2. FLACC score

    FLACC score (a pain evaluation method for children who cannot express their severity of pain verbally) right after post-anesthesia care unit arrival.

    Time frame: Arrival at the post-anesthesia care unit

  3. Adjusted analgesic dose after anesthesia

    Total dose of analgesics (NSAIDs and opioids) delivered to the patient since the end of the anesthesia, until 24 hours after the end of anesthesia

    Time frame: 24 hours after the end of anesthesia

Secondary outcomes

  1. Emergence time

    Time between the end of the surgery and extubation

    Time frame: Intraoperative

  2. Incidence of rescue therapy

    Incidence of vasopressor/inotropics/anticholinergics/fluid/vasodilators administered, due to moderate to severe hemodynamic change

    Time frame: Intraoperative

07

Study locations

1 of 1 sites recruiting
  • Seoul National University Hospital
    Seoul, South Korea
    • Heesoo Kim · Contact
    Recruiting
08

References and documents

Publications

  • Wildemeersch D, Peeters N, Saldien V, Vercauteren M, Hans G. Pain assessment by pupil dilation reflex in response to noxious stimulation in anaesthetized adults. Acta Anaesthesiol Scand. 2018 Sep;62(8):1050-1056. doi: 10.1111/aas.13129. Epub 2018 Apr 19. PubMed 29671874 ↗
  • Sabourdin N, Barrois J, Louvet N, Rigouzzo A, Guye ML, Dadure C, Constant I. Pupillometry-guided Intraoperative Remifentanil Administration versus Standard Practice Influences Opioid Use: A Randomized Study. Anesthesiology. 2017 Aug;127(2):284-292. doi: 10.1097/ALN.0000000000001705. PubMed 28719527 ↗

Individual participant data

Plan to share: No

09

Updates

Tracking since Sep 25, 2026
No changes since tracking began. The registry record was last updated on Mar 29, 2019, before this site started recording changes on Sep 25, 2026. Its history is on ClinicalTrials.gov ↗
10

Registry details

Key details

Study ID
NCT03749811
Responsible party
Hee-Soo Kim (princial investigator, Seoul National University Hospital) — Principal investigator
First posted
Nov 21, 2018
Start date
Dec 4, 2018
Primary completion
Nov 18, 2020 (estimated)
Completion
Nov 18, 2021 (estimated)
Last update
Mar 29, 2019

Study contacts

Hee-Soo Kim, M.D., Ph.D.
Contact
dami0605@snu.ac.kr
+82-2-2072-3664
Sang-Whan Ji
Contact
taepoongshin@gmail.com
+82-2-2072-3661
Hee-Soo Kim, M.D., Ph.D.
principal investigator · Dept. of Anesthesiology and Pain Medicine, Seoul National University Hospital

Oversight

Data monitoring committee
Yes
FDA-regulated drug
No
FDA-regulated device
No
View the source record on ClinicalTrials.gov ↗

Not currently enrolling

This study is status unknown, as verified in Mar 2019. You cannot join it, but the record below documents what was studied.

Follow this study

Get an email when the registry record changes — status, dates, results — or when someone posts here.

Sign in to follow

Discussion

Questions and observations about this study, from anyone following it. Not medical advice, and not a channel to the study team — their contact details are on the registry record.

Sign in to join the discussion. Reading takes no account; posting does. You choose a display name, and a pseudonym is the default.

Nothing here yet. If you are running this trial, taking part in it, or weighing whether to, this is the place to say so.

Start the discussion