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CompletedNCT05878262Updated May 26, 2023

The Effect of Pre-emptive Analgesia on the Postoperative Pain in Children Undergoing Pediatric Stomatology Day Surgeries

An interventional study of ibuprofen suppository in Ankyloglossia, Oral Mucoceles and Supernumerary Teeth, sponsored by The Children's Hospital of Zhejiang University School of Medicine. Completed at 1 site in China. Open to participants aged 3 Years to 8 Years, including healthy volunteers. Per ClinicalTrials.gov, last updated 2023-05-26.

Sponsored by The Children's Hospital of Zhejiang University School of Medicine · Not applicable, Interventional, and Prevention

From the registry’s dates

  • Registered 8 months after the study started (first participant enrolled Sep 2022, registered May 2023).
Phase
Not applicable
Study type
Interventional
Enrollment
120
Allocation
Randomized
Ages
3 Years to 8 Years
Sex
All
01

Study summary

The aim of this double-blinded, randomized, controlled trial was to test whether pre-emptive analgesia with ibuprofen suppository is effective for children undergoing pediatric stomatology day surgeries in the postoperative period.

Read the detailed description

The recruited patients were randomly assigned into either the pre-emptive analgesia group or the control group. After the induction of anesthesia was performed, the nurse delivered the ibuprofen suppository at the dose of 5-10 mg/Kg for children of the pre-emptive analgesia group, and no measures were taken for the control group. All procedures of frenectomy, extraction of supernumerary teeth and excision of oral mucoceles were performed by a single surgeon. Postoperative pain was assessed using the Visual Analogue Scale (VAS), the Wong-Baker Faces Pain Rating Scale (WBS), and the Face, Leges, Activity, Cry, and Consolability (FLACC) scale, and Postoperative Parental Pain Assessment (PPPM) scale. The postoperative pain was measured 1, 4, and 24 hours after the surgery.

02

Conditions studied

  • Ankyloglossia
  • Oral Mucoceles
  • Supernumerary Teeth

Keywords

  • pre-emptive analgesia
  • pediatric stomatology day surgeries
  • postoperative pain
03

In context

Ankyloglossia

32 studies on the registry are indexed under Ankyloglossia; 8 are open to participants now.

This study's enrollment of 120 is above the median of 105 across 22 interventional studies indexed under Ankyloglossia.

Browse Ankyloglossia studies →

Lead sponsor

The Children's Hospital of Zhejiang University School of Medicine is the lead sponsor of 69 studies on the registry; 52 are open to participants now.

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

04

Who can participate

Ages eligible
3 Years to 8 Years
Sexes eligible
All
Accepts healthy volunteers
Yes

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

  • an age of 3-8 years; undergoing upper labial frenectomy, lingual frenectomy, extraction of supernumerary teeth, excision of oral mucoceles and the written from the parents or guardians.

Exclusion criteria

Exclusion Criteria:

  • children or parents refusal for study participation; intellectual disability, major systemic diseases; allergy to ibuprofen and other medications used in the study protocol.
Terms in these criteria, in plain language(1)

Underlined terms in the criteria open these too. Explained by clinicaltrials.gg, not part of the registry record. The study team decides who can take part.

Informed consent

Before you join, the study team explains what taking part involves — its purpose, what happens, the risks and possible benefits — and answers your questions, so you can decide freely. Consent is usually recorded on a form (the informed consent form, ICF) signed by you or, where the law allows, by someone legally authorised to decide for you.

You can keep asking questions during the study, you are told of new information that matters, and you can choose to leave at any time.

05

Study design

Phase
Not applicable
Primary purpose
Prevention
Allocation
Randomized
Intervention model
Parallel assignment
Masking
Double (Participant, Outcomes assessor)
Enrollment
120 participants (actual)

Study arms

  • Experimental
    pre-emptive analgesia group

    For the pre-emptive analgesia group children, the nurse delivered the ibuprofen suppository at the dose of 5-10 mg/Kg.

    Drug: ibuprofen suppository

  • No intervention
    control group

    No medicine was taken for the control group.

Interventions

  • After the induction of anesthesia was performed, the nurse delivered the ibuprofen suppository at the dose of 5-10 mg/Kg for the pre-emptive analgesia group children.

    Also known as: no medicine

06

What researchers measure

Primary outcomes

  1. The VAS scores for postoperative 1 hour pain

    The Visual Analogue Scale (VAS) is a line that is often 10 cm long with the markings "1"to"10","1"indicates no pain, and"10"represents very strong pain. The children were asked to mark a line on the scale to express the intensity of their pain at 1 hour postoperatively.

    Time frame: 1 hour after surgery

  2. The WBS scores for postoperative 1 hour pain

    The Wong-Baker Faces Pain Rating Scale (WBS) contains six of faces from 0 point happy face representing no pain to 10 points crying face suggesting the strong pain. The children were asked to choose one face that indicating their state feelings at 1 hour postoperatively.

    Time frame: 1 hour after surgery

  3. The FLACC scores for postoperative 1 hour pain

    The Face, Leges, Activity, Cry, and Consolability (FLACC) scale is an assessment tool that has five categories: facial expression, legs, activity, cry, and consolability. Each parameter is evaluated on a scale from 0 to 2, the total score is from 0-10 points. The FLACC scale was used by the researcher to assess pain at 1 hour after surgery.

    Time frame: 1 hour after surgery

  4. The PPPM scores for postoperative 1 hour pain

    The Postoperative Parental Pain Assessment (PPPM) scale was is a valid and useful tool assessed by the parent or guardian for postoperative assessment of discharged children's pain. It has 15 items about children's emotional state, changes in appetite (eat less than usual , refuse to eat), behaviors, and activities, the total score is from 0-15 points. The PPPM scale was used by the parent or guardian to assess pain at 1 hour after surgery.

    Time frame: 1 hour after surgery

  5. The VAS scores for postoperative 4 hours pain

    The Visual Analogue Scale (VAS) is a line that is often 10 cm long with the markings "1"to"10","1"indicates no pain, and"10"represents very strong pain. The children were asked to mark a line on the scale to express the intensity of their pain at 4 hours postoperatively.

    Time frame: 4 hours after surgery

  6. The WBS scores for postoperative 4 hours pain

    The Wong-Baker Faces Pain Rating Scale (WBS) contains six of faces from 0 point happy face representing no pain to 10 points crying face suggesting the strong pain. The children were asked to choose one face that indicating their state feelings at 4 hours postoperatively.

    Time frame: 4 hours after surgery

  7. The FLACC scores for postoperative 4 hours pain

    The Face, Leges, Activity, Cry, and Consolability (FLACC) scale is an assessment tool that has five categories: facial expression, legs, activity, cry, and consolability. Each parameter is evaluated on a scale from 0 to 2, the total score is from 0-10 points. The FLACC scale was used by the researcher to assess pain at 4 hours after surgery.

    Time frame: 4 hours after surgery

  8. The PPPM scores for postoperative 4 hours pain

    The Postoperative Parental Pain Assessment (PPPM) scale was is a valid and useful tool assessed by the parent or guardian for postoperative assessment of discharged children's pain. It has 15 items about children's emotional state, changes in appetite (eat less than usual , refuse to eat), behaviors, and activities, the total score is from 0-15 points. The PPPM scale was used by the parent or guardian to assess pain at 4 hours after surgery.

    Time frame: 4 hours after surgery

  9. The VAS scores for postoperative 24 hours pain

    The Visual Analogue Scale (VAS) is a line that is often 10 cm long with the markings "1"to"10","1"indicates no pain, and"10"represents very strong pain. The children were asked to mark a line on the scale to express the intensity of their pain at 24 hours postoperatively.

    Time frame: 24 hours after surgery

  10. The WBS scores for postoperative 24 hours pain

    The Wong-Baker Faces Pain Rating Scale (WBS) contains six of faces from 0 point happy face representing no pain to 10 points crying face suggesting the strong pain. The children were asked to choose one face that indicating their state feelings at 24 hours postoperatively.

    Time frame: 24 hours after surgery

  11. The FLACC scores for postoperative 24 hours pain

    The Face, Leges, Activity, Cry, and Consolability (FLACC) scale is an assessment tool that has five categories: facial expression, legs, activity, cry, and consolability. Each parameter is evaluated on a scale from 0 to 2, the total score is from 0-10 points. The FLACC scale was used by the researcher to assess pain at 24 hours after surgery.

    Time frame: 24 hours after surgery

  12. The PPPM scores for postoperative 24 hours pain

    The Postoperative Parental Pain Assessment (PPPM) scale was is a valid and useful tool assessed by the parent or guardian for postoperative assessment of discharged children's pain. It has 15 items about children's emotional state, changes in appetite (eat less than usual , refuse to eat), behaviors, and activities, the total score is from 0-15 points. The PPPM scale was used by the parent or guardian to assess pain at 24 hours after surgery.

    Time frame: 24 hours after surgery

07

Study locations

1 site
  • Children's Hospital, Zhejiang University School of Medicine
    Hangzhou, Zhejiang 310057, China
08

References and documents

Publications

  • Zielinski J, Morawska-Kochman M, Dudek K, Czapla M, Zatonski T. The Effect of Pre-Emptive Analgesia on the Postoperative Pain in Pediatric Otolaryngology: A Randomized, Controlled Trial. J Clin Med. 2022 May 11;11(10):2713. doi: 10.3390/jcm11102713. PubMed 35628840 ↗
  • Kelly DJ, Ahmad M, Brull SJ. Preemptive analgesia II: recent advances and current trends. Can J Anaesth. 2001 Dec;48(11):1091-101. doi: 10.1007/BF03020375. PubMed 11744585 ↗

Individual participant data

Plan to share: Yes — After the raw research data are collected and collated, we will make the data including study protocol, statistical analysis plan, informed consent form, clinical study report, and analytic code freely available to all researchers.

Supporting information: Study protocol, Statistical analysis plan, Informed consent form, Clinical study report, Analytic code

Time frame: The data can be available now.

Access criteria: researchers who study the pre-emptive analgesia, and pediatric stomatologists

09

Timeline

Tracking since Sep 25, 2026
ElapsedEstimatedEstimated, not yet reached

Ran from Sep 2022 to primary completion in Mar 2023, 6 months.

How these figures are worked out, and which studies are left out of them.

Registered
May 9, 2023
First posted
May 26, 2023
StartActual
Sep 1, 2022
Primary completionActual
Mar 15, 2023
CompletionActual
May 1, 2023
Last update
May 26, 2023
What these dates mean
Start.
When the first participant enrolled; while estimated, when the study expects to open to recruitment.
Primary completion.
When the last participant was examined or treated to collect data for the study's main question, its primary outcome. A study that stopped early gives the date its data collection stopped.
Completion.
When the last participant's last visit took place, for every outcome, secondary ones and side effects included: the end of the study. Often later than primary completion, sometimes the same day.
Actual and Est.
Actual means the registry says the date has happened. Est. (estimated) is a date the sponsor plans or expects. It can still move, and the sponsor is expected to change it to actual once it has passed.
No changes since tracking began. The registry record was last updated on May 26, 2023, before this site started recording changes on Sep 25, 2026. Its history is on ClinicalTrials.gov ↗
10

Registry details

Key details

Study ID
NCT05878262
Lead sponsor
The Children's Hospital of Zhejiang University School of Medicine
Responsible party
Xiaojing Li (Principal Investigator, The Children's Hospital of Zhejiang University School of Medicine) — Principal investigator
First posted
May 26, 2023
Start date
Sep 1, 2022
Primary completion
Mar 15, 2023
Completion
May 1, 2023
Last update
May 26, 2023

Study contacts

Fangqi Gong, doctor
study chair · Medical Ethics Committee, Children's Hospital, Zhejiang University School of Medicine

Oversight

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

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Studies of the drug tested here: Ibuprofen

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