NCT06580028

Brief Summary

Sevoflurane is one of the most commonly used volatile anesthetics in children because of its rapid induction, recovery and recovery properties. Clinical studies using noninvasive brain monitoring have shown that general anesthetics and hypnotics generate electroencephalogram (EEG) oscillations in specific spatial tissues that are fundamentally related to the structure and function of neural circuits. Slow-wave-delta (0.1-4 Hz) oscillations were present in children of all ages, and the advantage of frontal α-wave oscillations appeared at approximately 6 months, began to be consistent at 10 months, and persisted at older ages. Another study, which analyzed EEG under sevoflurane general anesthesia in children aged 0-6 months, found that Theta and alpha wave power decreased with a decrease in sevoflurane concentrations in infants between 4 and 6 months of recovery. However, these studies lack detailed characterization of the neural circuit activity associated with anesthesia, especially at specific developmental ages that are highly correlated with brain plasticity. The aim of this study was to explore electroencephalogram (EEG) of children of different ages under sevoflurane general anesthesia (including anesthesia induction, maintenance and recovery) . By analyzing these EEG data in detail, we hope to be able to better understand the EEG characteristics of children of different ages under sevoflurane anesthesia, and thus develop a neurophysiology pediatric anesthesia status monitoring strategy.

Trial Health

77
On Track

Trial Health Score

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

Enrollment
280

participants targeted

Target at P75+ for all trials

Timeline
4mo left

Started Sep 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

Study Progress84%
Sep 2024Sep 2026

First Submitted

Initial submission to the registry

August 28, 2024

Completed
2 days until next milestone

First Posted

Study publicly available on registry

August 30, 2024

Completed
5 days until next milestone

Study Start

First participant enrolled

September 4, 2024

Completed
2 years until next milestone

Primary Completion

Last participant's last visit for primary outcome

September 1, 2026

Expected
Same day until next milestone

Study Completion

Last participant's last visit for all outcomes

September 1, 2026

Last Updated

February 7, 2025

Status Verified

February 1, 2025

Enrollment Period

2 years

First QC Date

August 28, 2024

Last Update Submit

February 4, 2025

Conditions

Keywords

SevofluraneChildrenElectroencephalogram

Outcome Measures

Primary Outcomes (1)

  • Time-frequency characteristics of electroencephalogram (EEG)

    Time-frequency characteristics of electroencephalogram (EEG) in children of different ages during sevoflurane general anesthesia (including anesthesia induction, maintenance and recovery) .

    during sevoflurane general anesthesia (including anesthesia induction, maintenance and recovery)

Secondary Outcomes (5)

  • Modified observer's assessment of alertness#sedation#MOAA/S#scale

    during sevoflurane general anesthesia (including anesthesia induction, maintenance and recovery)

  • Recovery time

    Within up to 30 minutes after operation

  • Pediatric anesthesia emergence delirium

    Within up to 30 minutes after operation

  • The Face, Legs, Activity, Cry, Consolability Scale (FLACC)

    Within up to 30 minutes after operation

  • PHBQ-AS

    3 days after operation

Study Arms (14)

0-3 months

EEG was collected during the whole perioperative period, including preoperative conscious period (or preoperative sedation period) , anesthesia period and anesthesia recovery period.

3-6 months

EEG was collected during the whole perioperative period, including preoperative conscious period (or preoperative sedation period) , anesthesia period and anesthesia recovery period.

6-9 months

EEG was collected during the whole perioperative period, including preoperative conscious period (or preoperative sedation period) , anesthesia period and anesthesia recovery period.

9-12 months

EEG was collected during the whole perioperative period, including preoperative conscious period (or preoperative sedation period) , anesthesia period and anesthesia recovery period.

1-1.5 years

EEG was collected during the whole perioperative period, including preoperative conscious period (or preoperative sedation period) , anesthesia period and anesthesia recovery period.

1.5-2 years

EEG was collected during the whole perioperative period, including preoperative conscious period (or preoperative sedation period) , anesthesia period and anesthesia recovery period.

2-2.5 years

EEG was collected during the whole perioperative period, including preoperative conscious period (or preoperative sedation period) , anesthesia period and anesthesia recovery period.

2.5-3 years

EEG was collected during the whole perioperative period, including preoperative conscious period (or preoperative sedation period) , anesthesia period and anesthesia recovery period.

3-3.5 years

EEG was collected during the whole perioperative period, including preoperative conscious period (or preoperative sedation period) , anesthesia period and anesthesia recovery period.

3.5-4 years

EEG was collected during the whole perioperative period, including preoperative conscious period (or preoperative sedation period) , anesthesia period and anesthesia recovery period.

4-4.5 years

EEG was collected during the whole perioperative period, including preoperative conscious period (or preoperative sedation period) , anesthesia period and anesthesia recovery period.

4.5-5 years

EEG was collected during the whole perioperative period, including preoperative conscious period (or preoperative sedation period) , anesthesia period and anesthesia recovery period.

5-5.5 years

EEG was collected during the whole perioperative period, including preoperative conscious period (or preoperative sedation period) , anesthesia period and anesthesia recovery period.

5.5-6 years

EEG was collected during the whole perioperative period, including preoperative conscious period (or preoperative sedation period) , anesthesia period and anesthesia recovery period.

Eligibility Criteria

Age1 Day - 6 Years
Sexall
Healthy VolunteersYes
Age GroupsChild (0-17)
Sampling MethodNon-Probability Sample
Study Population

The study population met the above inclusion criteria.

You may qualify if:

  • aged 1 days#6 years#;
  • with American Society of Anesthesiologists (ASA) physical status I or II#;
  • children requiring general anesthesia under sevoflurane;
  • parents or legal guardians of children who volunteered to participate in the trial; And signed the informed consent form.

You may not qualify if:

  • Congenital malformation or other genetic conditions that are thought to affect brain development ;
  • History of severe heart, brain, liver, kidney and metabolic diseases ;
  • Premature infants (≤32 weeks);
  • Upper respiratory tract infection in the last two weeks.

Contact the study team to confirm eligibility.

Sponsors & Collaborators

Study Sites (1)

The second Affiliated Hospital and Yuying Children's Hospital of Wenzhou Medical University

Wenzhou, Zhejiang, China

RECRUITING

Study Officials

  • Huacheng Liu

    Second Affiliated Hospital of Wenzhou Medical University

    PRINCIPAL INVESTIGATOR
  • Yuhang Cai

    Second Affiliated Hospital of Wenzhou Medical University

    PRINCIPAL INVESTIGATOR

Central Study Contacts

Study Design

Study Type
observational
Observational Model
COHORT
Time Perspective
PROSPECTIVE
Sponsor Type
OTHER
Responsible Party
SPONSOR

Study Record Dates

First Submitted

August 28, 2024

First Posted

August 30, 2024

Study Start

September 4, 2024

Primary Completion (Estimated)

September 1, 2026

Study Completion (Estimated)

September 1, 2026

Last Updated

February 7, 2025

Record last verified: 2025-02

Locations