NCT06425406

Brief Summary

Compared with adults, children have higher metabolic needs, and the airway is more likely to collapse. Before tracheal intubation after anesthesia induction, the patient 's spontaneous breathing completely disappears. At this critical stage, the residual oxygen of the lung is consumed, resulting in hypoxemia and atelectasis. Therefore, it is necessary to explore the best oxygenation strategy during intubation. In addition, ultrasound has become a common equipment in the operating room. It has the advantages of portability, repeatability, and no radiation, and can provide strong support for the diagnosis of gastric distension.

Trial Health

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Monitor

Trial Health Score

Automated assessment based on enrollment pace, timeline, and geographic reach

Trial has exceeded expected completion date
Enrollment
48

participants targeted

Target at P25-P50 for not_applicable

Timeline
Completed

Started Jun 2024

Geographic Reach
1 country

1 active site

Status
recruiting

Health score is calculated from publicly available data and should be used for screening purposes only.

Trial Relationships

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Study Timeline

Key milestones and dates

First Submitted

Initial submission to the registry

April 15, 2024

Completed
1 month until next milestone

First Posted

Study publicly available on registry

May 22, 2024

Completed
24 days until next milestone

Study Start

First participant enrolled

June 15, 2024

Completed
1.5 years until next milestone

Primary Completion

Last participant's last visit for primary outcome

November 30, 2025

Completed
Same day until next milestone

Study Completion

Last participant's last visit for all outcomes

November 30, 2025

Completed
Last Updated

December 1, 2025

Status Verified

November 1, 2025

Enrollment Period

1.5 years

First QC Date

April 15, 2024

Last Update Submit

November 24, 2025

Conditions

Outcome Measures

Primary Outcomes (1)

  • Apnoea time

    Investigators will record the time of oxygen saturation drop to 95 % during intubation.

    2-10min

Study Arms (2)

Group HFNC

EXPERIMENTAL

In the HFNC group, the mask ventilation was performed after the patient lost spontaneous breathing until the end-tidal oxygen concentration reached 90 %. The mask was removed and HFNC ( AIRVO2, Fisher Parker Medical Company, Auckland, New Zealand ) was used to record the patient 's safe apnea time. After the end of positive pressure ventilation, intubation or laryngeal mask placement was performed after the end-tidal oxygen concentration reached 90 % or more. During the intubation or placement of the laryngeal mask, the HFNC nasal catheter was kept in the patient 's nose for apnea oxygenation.

Device: high-flow nasal cannula

Group control

NO INTERVENTION

No intervention

Interventions

In group H, mask ventilation was performed after the patient lost spontaneous breathing until the end-expiratory oxygen concentration reached 90 %. The lower mask was taken and HFNC was used to record the patient 's safe apnea time.

Group HFNC

Eligibility Criteria

Age2 Years - 10 Years
Sexall
Healthy VolunteersYes
Age GroupsChild (0-17)

You may qualify if:

  • Age 2-10 years old;
  • American Society of Anesthesiologists (ASA) Level I or II;
  • Children with healthy lungs and hearts;
  • Clear headed and able to cooperate with anesthesiologists for treatment.

You may not qualify if:

  • Contraindications for HFNC: (1) Complete obstruction of the upper respiratory tract; (2) Skull base fracture or nasal bone fracture; (3) Patients who refuse to use HFNC;
  • The American Society of Anesthesiologists (ASA) rating is greater than Level II;
  • Children with upper respiratory tract infections within 2 weeks;
  • Pulmonary dysfunction, congenital heart disease in children;

Contact the study team to confirm eligibility.

Sponsors & Collaborators

Study Sites (1)

Department of Anaesthesiology and Perioperative Medicine, People's Hospital of Zhengzhou University, Henan Provincial People's Hospital

Zhengzhou, Henan, China

RECRUITING

Study Officials

  • Jun Zhou, PHD

    Henan Provincial People's Hospital

    STUDY CHAIR

Central Study Contacts

Study Design

Study Type
interventional
Phase
not applicable
Allocation
RANDOMIZED
Masking
TRIPLE
Who Masked
PARTICIPANT, CARE PROVIDER, OUTCOMES ASSESSOR
Purpose
PREVENTION
Intervention Model
PARALLEL
Sponsor Type
OTHER
Responsible Party
SPONSOR

Study Record Dates

First Submitted

April 15, 2024

First Posted

May 22, 2024

Study Start

June 15, 2024

Primary Completion

November 30, 2025

Study Completion

November 30, 2025

Last Updated

December 1, 2025

Record last verified: 2025-11

Locations