NCT05701839

Brief Summary

Hysteroscopy is used to examine and treat uterine diseases. Because of severe pain due to uterine distention and cervical dilatation, deep sedation usually be provided during this procedure. Respiratory depression and upper airway obstruction are main respiratory complications during deep sedation. Face mask and nasopharyngeal airway are main airway management during deep sedation. Oxygen reserve index is a non-invasive parameter, it reflects the moderate hyperoxia statues. In this study, investigators compare the effect of face mask and nasopharyngeal airway management on oxygenation during deep sedation in participants undergoing hysteroscopy. Investigators also investigate whether oxygen reserve index monitoring reduce the incidence of hypoxemia.

Trial Health

43
At Risk

Trial Health Score

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

Trial has exceeded expected completion date
Enrollment
400

participants targeted

Target at P75+ for not_applicable

Timeline
Completed

Started Feb 2023

Typical duration for not_applicable

Geographic Reach
1 country

1 active site

Status
unknown

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

December 28, 2022

Completed
1 month until next milestone

First Posted

Study publicly available on registry

January 27, 2023

Completed
5 days until next milestone

Study Start

First participant enrolled

February 1, 2023

Completed
10 months until next milestone

Primary Completion

Last participant's last visit for primary outcome

November 30, 2023

Completed
1 year until next milestone

Study Completion

Last participant's last visit for all outcomes

November 30, 2024

Completed
Last Updated

February 1, 2023

Status Verified

October 1, 2022

Enrollment Period

10 months

First QC Date

December 28, 2022

Last Update Submit

January 30, 2023

Conditions

Outcome Measures

Primary Outcomes (1)

  • The incidence of low oxygen saturation

    oxygen saturation less than 95% last for at least 10 seconds

    Procedure (from anesthesia induction to anesthesia recovery)

Secondary Outcomes (2)

  • Total duration of assist ventilation

    Procedure (from anesthesia induction to anesthesia recovery)

  • The lowest oxygen saturation

    Procedure (from anesthesia induction to anesthesia recovery)

Study Arms (4)

face mask airway management without oxygen reserve index monitoring

EXPERIMENTAL

Participants inhale oxygen through face mask at a flow rate of 5 L/min and will be monitored with oxygen saturation.

Procedure: face mask ventilationDevice: oxygen saturation monitoring

face mask airway management with oxygen reserve index monitoring

EXPERIMENTAL

Participants inhale oxygen through face mask at a flow rate of 5 L/min and will be monitored with oxygen reserve index.

Procedure: face mask ventilationDevice: oxygen reserve index monitoring

nasopharyngeal tube airway management without oxygen reserve index monitoring

EXPERIMENTAL

Participants inhale oxygen through face mask before induction and through nasopharyngeal tube after consciousness disappear at a flow rate of 5 L/min and will be monitored with oxygen saturation.

Procedure: nasopharyngeal tube ventilationDevice: oxygen saturation monitoring

nasopharyngeal tube airway management with oxygen reserve index monitoring

EXPERIMENTAL

Participants inhale oxygen through face mask before induction and through nasopharyngeal tube after consciousness disappear at a flow rate of 5 L/min and will be monitored with oxygen reserve index.

Procedure: nasopharyngeal tube ventilationDevice: oxygen reserve index monitoring

Interventions

In participants with face mask ventilation, oxygen inhaled through face mask at a flow rate of 5 L/min.

face mask airway management with oxygen reserve index monitoringface mask airway management without oxygen reserve index monitoring

In participants with nasopharyngeal tube ventilation, oxygen inhaled through face mask before induction and through nasopharyngeal tube after consciousness disappear at a flow rate of 5 L/min.

nasopharyngeal tube airway management with oxygen reserve index monitoringnasopharyngeal tube airway management without oxygen reserve index monitoring

In participants with oxygen saturation monitoring, assist ventilation through face mask will be performed when oxygen saturation drops to 95%, it lasts for another 10 seconds when oxygen saturation restores to 100%.

face mask airway management without oxygen reserve index monitoringnasopharyngeal tube airway management without oxygen reserve index monitoring

In participants with oxygen reserve index monitoring, assist ventilation through face mask will be performed when oxygen reserve index drops to 0.1, it lasts for another 10 seconds when oxygen reserve index restores to 0.1.

face mask airway management with oxygen reserve index monitoringnasopharyngeal tube airway management with oxygen reserve index monitoring

Eligibility Criteria

Age18 Years - 60 Years
Sexfemale
Healthy VolunteersNo
Age GroupsAdult (18-64)

You may qualify if:

  • Female, 18-60 years old
  • Scheduled for hysteroscopy
  • Predict operation duration more than 10 minutes

You may not qualify if:

  • Participants refuse
  • Predict the presence of difficult airway
  • Combined with obstructive sleep apnea syndrome
  • Combined with upper respiratory tract infection, and/or pulmonary inflammation
  • Combined with chronic obstructive pulmonary disease
  • Combined with asthma
  • Body mass index (BMI) \>30 kg/m2
  • Coagulation dysfunction, and/or undergo anticoagulant therapy
  • Nasal deformity
  • Pregnancy, positive urine pregnancy test

Contact the study team to confirm eligibility.

Sponsors & Collaborators

Study Sites (1)

First Affiliated Hospital of Xi'an Jiaotong University

Xi'an, Shaanxi, 710061, China

Location

Study Officials

  • Zheng Guan, MD

    First Affiliated Hospital Xi'an Jiaotong University

    STUDY CHAIR

Central Study Contacts

Study Design

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

Study Record Dates

First Submitted

December 28, 2022

First Posted

January 27, 2023

Study Start

February 1, 2023

Primary Completion

November 30, 2023

Study Completion

November 30, 2024

Last Updated

February 1, 2023

Record last verified: 2022-10

Data Sharing

IPD Sharing
Will not share

Investigators have no plan to make individual participant data available to other researchers

Locations