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CompletedNCT04711174Updated Apr 5, 2022

Optimization for Laryngeal Mask Removal Strategy and Evaluation of Transitional Criteria From PACU in Children

An observational study in Complication of Device Removal, sponsored by Eye & ENT Hospital of Fudan University. Completed at 1 site in China. Open to male participants aged Up to 6 Years. Per ClinicalTrials.gov, last updated 2022-04-05.

Sponsored by Eye & ENT Hospital of Fudan University · Observational

Study type
Observational
Model
Other
Time perspective
Prospective
Enrollment
3
Ages
Up to 6 Years
Sex
Male
01

Study summary

Laryngeal mask airway(LMA) is now a widely accepted airway device in general anesthesia for children. LMA removal after operation is always practiced in post-anesthesia-care-unit(PACU). The removal timing depends on recovery of spontaneous respiration and wash-out of inhalation anesthetics. This study focuses on the optimization for LMA removal strategy. Moreover, this study also discusses the transitional criteria from PACU to the ward.

Read the detailed description

The study recruits 180 children aged under 6-year-old undergoing elective general anesthesia. Laryngeal mask is used in procedure. The children are carried into PACU to get monitored and removal the LMA. The children are randomized into 4 groups.

02

Conditions studied

  • Complication of Device Removal

Keywords

  • LMA removal
  • evaluation of transitional criteria from PACU
03

In context

Lead sponsor

Eye & ENT Hospital of Fudan University is the lead sponsor of 121 studies on the registry; 67 are open to participants now.

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

04

Who can participate

Ages eligible
Up to 6 Years
Sexes eligible
Male
Accepts healthy volunteers
No
Sampling method
Non-probability sample

Study population

children

Inclusion criteria

  • Children aged under 6 years old undergoing selected eye surgery
  • Scheduled for general anesthesia

Exclusion criteria

Exclusion Criteria:

  • With systemic disease
  • Respiratory system deformity
  • Respiratory infection in 4 weeks
05

Study design

Observational model
Other
Time perspective
Prospective
Enrollment
3 participants (actual)
Patient registry
No

Groups and cohorts

  • movement,high Aldrete score group (MH group)

    LMA removal be conducted when the child's spontaneous respiratory recovers with body movement spontaneously, and the child be transited from PACU when Aldrete score reaches 9

    Behavioral: LMA removal

  • movement,low Aldrete score group (ML group)

    LMA removal be conducted when the child's spontaneous respiratory recovers with body movement spontaneously, and the child be transited from PACU when Aldrete score reaches 7

    Behavioral: LMA removal

  • sedation,high Aldrete score group (SH group)

    LMA removal be conducted when the child's spontaneous respiratory recovers but with no body movement, and the child be transited from PACU when Aldrete score reaches 9

    Behavioral: LMA removal

  • sedation,low Aldrete score group (SL group)

    LMA removal be conducted when the child's spontaneous respiratory recovers but with no body movement, and the child be transited from PACU when Aldrete score reaches 7

    Behavioral: LMA removal

Interventions

  • BehavioralLMA removal

    the timing when conducting LMA removal

    Also known as: Aldrete score

06

What researchers measure

Primary outcomes

  1. baseline heart rate

    heart rate before induction

    Time frame: before induction

  2. heart rate after induction

    heart rate after induction

    Time frame: immediately after induction

  3. heart rate in procedure

    heart rate in procedure

    Time frame: in procedure

  4. heart rate when transited into PACU

    heart rate into PACU

    Time frame: immediately after transited into PACU (first measured data in PACU)

  5. heart rate when transited out PACU

    heart rate out PACU

    Time frame: before transited out of PACU (last measured data in PACU)

  6. heart rate spontaneous respiratory

    heart rate when spontaneous respiratory recovers

    Time frame: immediately after recovering spontaneous respiratory

  7. heart rate effective spontaneous respiratory

    heart rate when effective spontaneous respiratory recovers

    Time frame: immediately after effective spontaneous respiratory recovers

  8. heart rate LMA removal

    heart rate when LMA removed

    Time frame: immediately after LMA removed

  9. baseline mean blood pressure

    mean blood pressure before induction

    Time frame: before induction

  10. mean blood pressure after induction

    mean blood pressure after induction

    Time frame: immediately after induction

  11. mean blood pressure in procedure

    mean blood pressure in procedure

    Time frame: in procedure

  12. mean blood pressure when transited into PACU

    mean blood pressure into PACU

    Time frame: immediately after transited into PACU (first measured data in PACU)

  13. mean blood pressure when transited out PACU

    mean blood pressure out PACU

    Time frame: before transited out of PACU (last measured data in PACU)

  14. mean blood pressure spontaneous respiratory

    mean blood pressure when spontaneous respiratory recovers

    Time frame: immediately after recovering spontaneous respiratory

  15. mean blood pressure spontaneous respiratory

    mean blood pressure when effective spontaneous respiratory recovers

    Time frame: immediately after effective spontaneous respiratory recovers

  16. mean blood pressure LMA removal

    mean blood pressure when effective spontaneous respiratory recovers

    Time frame: immediately after LMA removed

  17. time length of LMA removal

    time length from the child transited into PACU to LMA removal

    Time frame: from the time point of the child be transited into PACU until the time point of the LMA be removed

  18. dwell time length in PACU

    time length of the child staying in PACU

    Time frame: from the time point of the child be transited into PACU until the time point of the child be transited out of PACU

  19. cough

    cough count and severity

    Time frame: from the time point of the LMA be removed until the time point of the child be transited out of PACU

  20. desaturation

    desaturation count and severity

    Time frame: from the time point of the LMA be removed until the time point of the child be transited out of PACU

  21. clenching

    clenching during LMA removal

    Time frame: from the time point of the LMA be removed until the time point of the child be transited out of PACU

  22. gross body movement

    gross body movement during LMA removal

    Time frame: from the time point of the LMA be removed until the time point of the child be transited out of PACU

  23. breath holding

    breath holding during LMA removal

    Time frame: from the time point of the LMA be removed until the time point of the child be transited out of PACU

  24. airway obstruction

    airway obstruction

    Time frame: from the time point of the LMA be removed until the time point of the child be transited out of PACU

Secondary outcomes

  1. parents' satisfaction score

    questionnaire scored from 1-5 to assess the parents' satisfaction : score 1 for worst satisfied, score 5 for best satisfied

    Time frame: up to 3 days after surgery

  2. sleep quality score

    questionnaire scored from 1-5 to assess the children's sleep quality : score 1 for worst sleep quality, score 5 for best sleep quality

    Time frame: up to 3 days after surgery

  3. FLACC(face,legs,activity,cry,consolability) scale score

    FLACC scale scored from 0-10 to assess the children's pain after surgery: score 0 for no pain, score 10 for worst pain

    Time frame: up to 3 days after surgery

  4. anxiety score

    questionnaire scored from 1-5 to assess the parents' anxiety : score 1 for no anxiety, score 5 for worst anxiety

    Time frame: up to 3 days after surgery

07

Study locations

1 site
  • Eye and EENT hospital of Fudan University
    Shanghai, Shanghai 021, China
08

Updates

Tracking since Sep 25, 2026
No changes since tracking began. The registry record was last updated on Apr 5, 2022, before this site started recording changes on Sep 25, 2026. Its history is on ClinicalTrials.gov ↗
09

Registry details

Key details

Study ID
NCT04711174
Lead sponsor
Eye & ENT Hospital of Fudan University
Responsible party
Sponsor
First posted
Jan 15, 2021
Start date
Jul 31, 2020
Primary completion
Dec 31, 2021
Completion
Feb 28, 2022
Last update
Apr 5, 2022

Study contacts

Wenxian Li
principal investigator · Eye and ENT Hospital of Fudan University

Oversight

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

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